forked from AFPy/python-docs-fr
1434 lines
49 KiB
Plaintext
1434 lines
49 KiB
Plaintext
# Copyright (C) 2001-2018, Python Software Foundation
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# For licence information, see README file.
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#
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msgid ""
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msgstr ""
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"Project-Id-Version: Python 3\n"
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"Report-Msgid-Bugs-To: \n"
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"POT-Creation-Date: 2021-11-04 18:14+0100\n"
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"PO-Revision-Date: 2019-03-26 15:55+0100\n"
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"Last-Translator: Julien Palard <julien@palard.fr>\n"
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"Language-Team: FRENCH <traductions@lists.afpy.org>\n"
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"Language: fr\n"
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"MIME-Version: 1.0\n"
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"Content-Type: text/plain; charset=UTF-8\n"
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"Content-Transfer-Encoding: 8bit\n"
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"X-Generator: Poedit 2.0.6\n"
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#: library/sqlite3.rst:2
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msgid ":mod:`sqlite3` --- DB-API 2.0 interface for SQLite databases"
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msgstr ":mod:`sqlite3` — Interface DB-API 2.0 pour bases de données SQLite"
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#: library/sqlite3.rst:9
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msgid "**Source code:** :source:`Lib/sqlite3/`"
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msgstr "**Code source :** :source:`Lib/sqlite3/`"
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#: library/sqlite3.rst:13
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msgid ""
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"SQLite is a C library that provides a lightweight disk-based database that "
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"doesn't require a separate server process and allows accessing the database "
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"using a nonstandard variant of the SQL query language. Some applications can "
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"use SQLite for internal data storage. It's also possible to prototype an "
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"application using SQLite and then port the code to a larger database such as "
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"PostgreSQL or Oracle."
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msgstr ""
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"SQLite est une bibliothèque C qui fournit une base de données légère sur "
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"disque ne nécessitant pas de processus serveur et qui utilise une variante "
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"(non standard) du langage de requête SQL pour accéder aux données. Certaines "
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"applications peuvent utiliser SQLite pour le stockage de données internes. "
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"Il est également possible de créer une application prototype utilisant "
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"SQLite, puis de modifier le code pour utiliser une base de données plus "
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"robuste telle que PostgreSQL ou Oracle."
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#: library/sqlite3.rst:20
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#, fuzzy
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msgid ""
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"The sqlite3 module was written by Gerhard Häring. It provides a SQL "
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"interface compliant with the DB-API 2.0 specification described by :pep:"
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"`249`, and requires SQLite 3.7.15 or newer."
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msgstr ""
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"Le module *sqlite3* a été écrit par Gerhard Häring. Il fournit une "
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"interface SQL conforme à la spécification DB-API 2.0 décrite par :pep:`249`."
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#: library/sqlite3.rst:24
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msgid ""
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"To use the module, you must first create a :class:`Connection` object that "
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"represents the database. Here the data will be stored in the :file:`example."
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"db` file::"
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msgstr ""
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"Pour utiliser le module, vous devez d’abord créer une :class:`Connection` "
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"qui représente la base de données. Dans cet exemple, les données sont "
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"stockées dans le fichier :file:`example.db` ::"
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#: library/sqlite3.rst:31
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msgid ""
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"You can also supply the special name ``:memory:`` to create a database in "
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"RAM."
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msgstr ""
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"Vous pouvez également fournir le nom spécial ``:memory:`` pour créer une "
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"base de données dans la mémoire vive."
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#: library/sqlite3.rst:33
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msgid ""
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"Once you have a :class:`Connection`, you can create a :class:`Cursor` "
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"object and call its :meth:`~Cursor.execute` method to perform SQL commands::"
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msgstr ""
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"Une fois que vous avez une instance de :class:`Connection`, vous pouvez "
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"créer un objet :class:`Cursor` et appeler sa méthode :meth:`~Cursor.execute` "
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"pour exécuter les commandes SQL ::"
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#: library/sqlite3.rst:52
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msgid ""
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"The data you've saved is persistent and is available in subsequent sessions::"
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msgstr ""
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"Les données que vous avez sauvegardées sont persistantes et disponibles dans "
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"les sessions suivantes ::"
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#: library/sqlite3.rst:58
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msgid ""
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"To retrieve data after executing a SELECT statement, you can either treat "
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"the cursor as an :term:`iterator`, call the cursor's :meth:`~Cursor."
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"fetchone` method to retrieve a single matching row, or call :meth:`~Cursor."
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"fetchall` to get a list of the matching rows."
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msgstr ""
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"Pour récupérer des données après avoir exécuté une instruction *SELECT*, "
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"vous pouvez considérer le curseur comme un :term:`itérateur <iterator>`, "
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"appeler la méthode du curseur :meth:`~Cursor.fetchone` pour récupérer une "
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"seule ligne correspondante ou appeler :meth:`~Cursor.fetchall` pour obtenir "
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"une liste des lignes correspondantes."
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#: library/sqlite3.rst:63
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msgid "This example uses the iterator form::"
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msgstr "Cet exemple utilise la forme itérateur ::"
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#: library/sqlite3.rst:76
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#, fuzzy
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msgid ""
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"Usually your SQL operations will need to use values from Python variables. "
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"You shouldn't assemble your query using Python's string operations because "
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"doing so is insecure; it makes your program vulnerable to an SQL injection "
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"attack (see the `xkcd webcomic <https://xkcd.com/327/>`_ for a humorous "
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"example of what can go wrong)::"
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msgstr ""
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"Habituellement, vos opérations SQL utilisent les valeurs de variables "
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"Python. Vous ne devez pas assembler votre requête à l'aide des opérations "
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"sur les chaînes de caractères de Python, car cela n'est pas sûr. Cela rend "
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"votre programme vulnérable à une attaque par injection SQL (voir https://"
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"xkcd.com/327/ pour un exemple amusant de ce qui peut mal tourner)."
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#: library/sqlite3.rst:86
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msgid ""
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"Instead, use the DB-API's parameter substitution. Put a placeholder wherever "
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"you want to use a value, and then provide a tuple of values as the second "
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"argument to the cursor's :meth:`~Cursor.execute` method. An SQL statement "
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"may use one of two kinds of placeholders: question marks (qmark style) or "
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"named placeholders (named style). For the qmark style, ``parameters`` must "
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"be a :term:`sequence <sequence>`. For the named style, it can be either a :"
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"term:`sequence <sequence>` or :class:`dict` instance. The length of the :"
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"term:`sequence <sequence>` must match the number of placeholders, or a :exc:"
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"`ProgrammingError` is raised. If a :class:`dict` is given, it must contain "
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"keys for all named parameters. Any extra items are ignored. Here's an "
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"example of both styles:"
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msgstr ""
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#: library/sqlite3.rst:105
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msgid "https://www.sqlite.org"
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msgstr "https://www.sqlite.org"
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#: library/sqlite3.rst:104
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msgid ""
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"The SQLite web page; the documentation describes the syntax and the "
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"available data types for the supported SQL dialect."
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msgstr ""
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"Dans la page Web de SQLite, la documentation décrit la syntaxe et les types "
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"de données disponibles qui sont pris en charge par cette variante SQL."
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#: library/sqlite3.rst:108
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msgid "https://www.w3schools.com/sql/"
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msgstr "https://www.w3schools.com/sql/"
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#: library/sqlite3.rst:108
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msgid "Tutorial, reference and examples for learning SQL syntax."
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msgstr "Tutoriel, référence et exemples pour apprendre la syntaxe SQL."
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#: library/sqlite3.rst:110
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msgid ":pep:`249` - Database API Specification 2.0"
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msgstr ":pep:`249` — Spécifications de l'API 2.0 pour la base de données"
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#: library/sqlite3.rst:111
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msgid "PEP written by Marc-André Lemburg."
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msgstr "PEP écrite par Marc-André Lemburg."
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#: library/sqlite3.rst:117
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msgid "Module functions and constants"
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msgstr "Fonctions et constantes du module"
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#: library/sqlite3.rst:122
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msgid ""
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"String constant stating the supported DB-API level. Required by the DB-API. "
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"Hard-coded to ``\"2.0\"``."
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msgstr ""
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#: library/sqlite3.rst:127
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msgid ""
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"String constant stating the type of parameter marker formatting expected by "
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"the :mod:`sqlite3` module. Required by the DB-API. Hard-coded to ``\"qmark"
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"\"``."
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msgstr ""
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#: library/sqlite3.rst:133
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msgid ""
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"The :mod:`sqlite3` module supports both ``qmark`` and ``numeric`` DB-API "
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"parameter styles, because that is what the underlying SQLite library "
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"supports. However, the DB-API does not allow multiple values for the "
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"``paramstyle`` attribute."
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msgstr ""
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#: library/sqlite3.rst:140
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msgid ""
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"The version number of this module, as a string. This is not the version of "
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"the SQLite library."
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msgstr ""
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"Le numéro de version de ce module, sous forme de chaîne. Ce n'est pas la "
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"version de la bibliothèque SQLite."
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#: library/sqlite3.rst:146
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msgid ""
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"The version number of this module, as a tuple of integers. This is not the "
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"version of the SQLite library."
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msgstr ""
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"Le numéro de version de ce module, sous forme d'un *n*-uplet d'entiers. Ce "
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"n'est pas la version de la bibliothèque SQLite."
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#: library/sqlite3.rst:152
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msgid "The version number of the run-time SQLite library, as a string."
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msgstr ""
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"Le numéro de version de la bibliothèque d'exécution SQLite, sous forme de "
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"chaîne."
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#: library/sqlite3.rst:157
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msgid ""
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"The version number of the run-time SQLite library, as a tuple of integers."
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msgstr ""
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"Le numéro de version de la bibliothèque d'exécution SQLite, sous forme "
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"d'entier."
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#: library/sqlite3.rst:162
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msgid ""
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"Integer constant required by the DB-API, stating the level of thread safety "
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"the :mod:`sqlite3` module supports. Currently hard-coded to ``1``, meaning *"
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"\"Threads may share the module, but not connections.\"* However, this may "
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"not always be true. You can check the underlying SQLite library's compile-"
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"time threaded mode using the following query::"
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msgstr ""
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#: library/sqlite3.rst:175
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msgid ""
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"Note that the `SQLITE_THREADSAFE levels <https://sqlite.org/compile."
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"html#threadsafe>`_ do not match the DB-API 2.0 ``threadsafety`` levels."
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msgstr ""
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#: library/sqlite3.rst:195
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msgid ""
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"This constant is meant to be used with the *detect_types* parameter of the :"
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"func:`connect` function."
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msgstr ""
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"Cette constante est destinée à être utilisée avec le paramètre "
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"*detect_types* de la fonction :func:`connect`."
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#: library/sqlite3.rst:185
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msgid ""
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"Setting it makes the :mod:`sqlite3` module parse the declared type for each "
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"column it returns. It will parse out the first word of the declared type, "
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"i. e. for \"integer primary key\", it will parse out \"integer\", or for "
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"\"number(10)\" it will parse out \"number\". Then for that column, it will "
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"look into the converters dictionary and use the converter function "
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"registered for that type there."
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msgstr ""
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"Si elle est définie, le module :mod:`sqlite3` analyse le type de donnée "
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"déclarée pour chaque colonne. Il déduit le type du premier mot de la "
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"déclaration, par exemple de *integer primary key* il gardera *integer*, ou "
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"de *number(10)* il gardera *number*. Ensuite, pour cette colonne, il "
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"utilisera une fonction de conversion du dictionnaire des convertisseurs."
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#: library/sqlite3.rst:198
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#, fuzzy
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msgid ""
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"Setting this makes the SQLite interface parse the column name for each "
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"column it returns. It will look for a string formed [mytype] in there, and "
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"then decide that 'mytype' is the type of the column. It will try to find an "
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"entry of 'mytype' in the converters dictionary and then use the converter "
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"function found there to return the value. The column name found in :attr:"
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"`Cursor.description` does not include the type, i. e. if you use something "
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"like ``'as \"Expiration date [datetime]\"'`` in your SQL, then we will parse "
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"out everything until the first ``'['`` for the column name and strip the "
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"preceding space: the column name would simply be \"Expiration date\"."
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msgstr ""
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"Permet à l’interface SQLite d'analyser le nom pour chaque colonne. Il y "
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"cherchera une chaîne comme ``[mytype]`` indiquant que la colonne est de type "
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"``mytype``. Il essaiera de trouver une entrée *mytype* dans le dictionnaire, "
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"puis utilisera la fonction de conversion qui s'y trouve pour renvoyer la "
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"valeur. Le nom de colonne donnée à :attr:`Cursor.description` n'est alors "
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"que le premier mot du nom de la colonne, par exemple si vous utilisez ``'as "
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"\\\"x [datetime]\\\"'`` dans votre code SQL, le nom de la colonne sera "
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"simplement *x*."
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#: library/sqlite3.rst:211
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msgid ""
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"Opens a connection to the SQLite database file *database*. By default "
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"returns a :class:`Connection` object, unless a custom *factory* is given."
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msgstr ""
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"Ouvre une connexion à la base de données SQLite *database*. Par défaut, "
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"cette commande renvoie un objet :class:`Connection`, sauf si *factory* est "
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"donné."
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#: library/sqlite3.rst:214
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msgid ""
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"*database* is a :term:`path-like object` giving the pathname (absolute or "
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"relative to the current working directory) of the database file to be "
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"opened. You can use ``\":memory:\"`` to open a database connection to a "
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"database that resides in RAM instead of on disk."
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msgstr ""
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#: library/sqlite3.rst:219
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msgid ""
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"When a database is accessed by multiple connections, and one of the "
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"processes modifies the database, the SQLite database is locked until that "
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"transaction is committed. The *timeout* parameter specifies how long the "
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"connection should wait for the lock to go away until raising an exception. "
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"The default for the timeout parameter is 5.0 (five seconds)."
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msgstr ""
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#: library/sqlite3.rst:225
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msgid ""
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"For the *isolation_level* parameter, please see the :attr:`~Connection."
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"isolation_level` property of :class:`Connection` objects."
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msgstr ""
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#: library/sqlite3.rst:228
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msgid ""
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"SQLite natively supports only the types TEXT, INTEGER, REAL, BLOB and NULL. "
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"If you want to use other types you must add support for them yourself. The "
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"*detect_types* parameter and the using custom **converters** registered with "
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"the module-level :func:`register_converter` function allow you to easily do "
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"that."
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msgstr ""
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#: library/sqlite3.rst:233
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msgid ""
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"*detect_types* defaults to 0 (i. e. off, no type detection), you can set it "
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"to any combination of :const:`PARSE_DECLTYPES` and :const:`PARSE_COLNAMES` "
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"to turn type detection on. Due to SQLite behaviour, types can't be detected "
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"for generated fields (for example ``max(data)``), even when *detect_types* "
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"parameter is set. In such case, the returned type is :class:`str`."
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msgstr ""
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#: library/sqlite3.rst:239
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msgid ""
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"By default, *check_same_thread* is :const:`True` and only the creating "
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"thread may use the connection. If set :const:`False`, the returned "
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"connection may be shared across multiple threads. When using multiple "
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"threads with the same connection writing operations should be serialized by "
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"the user to avoid data corruption."
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msgstr ""
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#: library/sqlite3.rst:244
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msgid ""
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"By default, the :mod:`sqlite3` module uses its :class:`Connection` class for "
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"the connect call. You can, however, subclass the :class:`Connection` class "
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"and make :func:`connect` use your class instead by providing your class for "
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"the *factory* parameter."
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msgstr ""
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#: library/sqlite3.rst:249
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msgid "Consult the section :ref:`sqlite3-types` of this manual for details."
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msgstr ""
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#: library/sqlite3.rst:251
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msgid ""
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"The :mod:`sqlite3` module internally uses a statement cache to avoid SQL "
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"parsing overhead. If you want to explicitly set the number of statements "
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"that are cached for the connection, you can set the *cached_statements* "
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"parameter. The currently implemented default is to cache 100 statements."
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msgstr ""
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#: library/sqlite3.rst:256
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msgid ""
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"If *uri* is true, *database* is interpreted as a URI. This allows you to "
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"specify options. For example, to open a database in read-only mode you can "
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"use::"
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msgstr ""
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#: library/sqlite3.rst:262
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msgid ""
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"More information about this feature, including a list of recognized options, "
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"can be found in the `SQLite URI documentation <https://www.sqlite.org/uri."
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"html>`_."
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msgstr ""
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#: library/sqlite3.rst:265
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msgid ""
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"Raises an :ref:`auditing event <auditing>` ``sqlite3.connect`` with argument "
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"``database``."
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msgstr ""
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#: library/sqlite3.rst:266
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msgid ""
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"Raises an :ref:`auditing event <auditing>` ``sqlite3.connect/handle`` with "
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"argument ``connection_handle``."
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msgstr ""
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#: library/sqlite3.rst:268
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msgid "Added the *uri* parameter."
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msgstr ""
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#: library/sqlite3.rst:271
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msgid ""
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"*database* can now also be a :term:`path-like object`, not only a string."
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msgstr ""
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#: library/sqlite3.rst:274
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msgid "Added the ``sqlite3.connect/handle`` auditing event."
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msgstr ""
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#: library/sqlite3.rst:280
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msgid ""
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"Registers a callable to convert a bytestring from the database into a custom "
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"Python type. The callable will be invoked for all database values that are "
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"of the type *typename*. Confer the parameter *detect_types* of the :func:"
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"`connect` function for how the type detection works. Note that *typename* "
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"and the name of the type in your query are matched in case-insensitive "
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"manner."
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msgstr ""
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#: library/sqlite3.rst:289
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msgid ""
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"Registers a callable to convert the custom Python type *type* into one of "
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"SQLite's supported types. The callable *callable* accepts as single "
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"parameter the Python value, and must return a value of the following types: "
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"int, float, str or bytes."
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msgstr ""
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#: library/sqlite3.rst:297
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msgid ""
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"Returns :const:`True` if the string *sql* contains one or more complete SQL "
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"statements terminated by semicolons. It does not verify that the SQL is "
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"syntactically correct, only that there are no unclosed string literals and "
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"the statement is terminated by a semicolon."
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msgstr ""
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#: library/sqlite3.rst:302
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msgid ""
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"This can be used to build a shell for SQLite, as in the following example:"
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msgstr ""
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#: library/sqlite3.rst:310
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msgid ""
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"By default you will not get any tracebacks in user-defined functions, "
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"aggregates, converters, authorizer callbacks etc. If you want to debug them, "
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"you can call this function with *flag* set to ``True``. Afterwards, you will "
|
||
"get tracebacks from callbacks on ``sys.stderr``. Use :const:`False` to "
|
||
"disable the feature again."
|
||
msgstr ""
|
||
|
||
#: library/sqlite3.rst:320
|
||
msgid "Connection Objects"
|
||
msgstr "Objets de connexions"
|
||
|
||
#: library/sqlite3.rst:324
|
||
msgid "A SQLite database connection has the following attributes and methods:"
|
||
msgstr ""
|
||
|
||
#: library/sqlite3.rst:328
|
||
msgid ""
|
||
"Get or set the current default isolation level. :const:`None` for autocommit "
|
||
"mode or one of \"DEFERRED\", \"IMMEDIATE\" or \"EXCLUSIVE\". See section :"
|
||
"ref:`sqlite3-controlling-transactions` for a more detailed explanation."
|
||
msgstr ""
|
||
|
||
#: library/sqlite3.rst:334
|
||
msgid ""
|
||
":const:`True` if a transaction is active (there are uncommitted changes), :"
|
||
"const:`False` otherwise. Read-only attribute."
|
||
msgstr ""
|
||
|
||
#: library/sqlite3.rst:341
|
||
msgid ""
|
||
"The cursor method accepts a single optional parameter *factory*. If "
|
||
"supplied, this must be a callable returning an instance of :class:`Cursor` "
|
||
"or its subclasses."
|
||
msgstr ""
|
||
|
||
#: library/sqlite3.rst:347
|
||
msgid ""
|
||
"This method commits the current transaction. If you don't call this method, "
|
||
"anything you did since the last call to ``commit()`` is not visible from "
|
||
"other database connections. If you wonder why you don't see the data you've "
|
||
"written to the database, please check you didn't forget to call this method."
|
||
msgstr ""
|
||
|
||
#: library/sqlite3.rst:354
|
||
msgid ""
|
||
"This method rolls back any changes to the database since the last call to :"
|
||
"meth:`commit`."
|
||
msgstr ""
|
||
|
||
#: library/sqlite3.rst:359
|
||
msgid ""
|
||
"This closes the database connection. Note that this does not automatically "
|
||
"call :meth:`commit`. If you just close your database connection without "
|
||
"calling :meth:`commit` first, your changes will be lost!"
|
||
msgstr ""
|
||
|
||
#: library/sqlite3.rst:365
|
||
msgid ""
|
||
"This is a nonstandard shortcut that creates a cursor object by calling the :"
|
||
"meth:`~Connection.cursor` method, calls the cursor's :meth:`~Cursor.execute` "
|
||
"method with the *parameters* given, and returns the cursor."
|
||
msgstr ""
|
||
|
||
#: library/sqlite3.rst:372
|
||
msgid ""
|
||
"This is a nonstandard shortcut that creates a cursor object by calling the :"
|
||
"meth:`~Connection.cursor` method, calls the cursor's :meth:`~Cursor."
|
||
"executemany` method with the *parameters* given, and returns the cursor."
|
||
msgstr ""
|
||
|
||
#: library/sqlite3.rst:379
|
||
msgid ""
|
||
"This is a nonstandard shortcut that creates a cursor object by calling the :"
|
||
"meth:`~Connection.cursor` method, calls the cursor's :meth:`~Cursor."
|
||
"executescript` method with the given *sql_script*, and returns the cursor."
|
||
msgstr ""
|
||
|
||
#: library/sqlite3.rst:386
|
||
msgid ""
|
||
"Creates a user-defined function that you can later use from within SQL "
|
||
"statements under the function name *name*. *num_params* is the number of "
|
||
"parameters the function accepts (if *num_params* is -1, the function may "
|
||
"take any number of arguments), and *func* is a Python callable that is "
|
||
"called as the SQL function. If *deterministic* is true, the created function "
|
||
"is marked as `deterministic <https://sqlite.org/deterministic.html>`_, which "
|
||
"allows SQLite to perform additional optimizations. This flag is supported by "
|
||
"SQLite 3.8.3 or higher, :exc:`NotSupportedError` will be raised if used with "
|
||
"older versions."
|
||
msgstr ""
|
||
|
||
#: library/sqlite3.rst:396
|
||
msgid ""
|
||
"The function can return any of the types supported by SQLite: bytes, str, "
|
||
"int, float and ``None``."
|
||
msgstr ""
|
||
|
||
#: library/sqlite3.rst:399
|
||
msgid "The *deterministic* parameter was added."
|
||
msgstr ""
|
||
|
||
#: library/sqlite3.rst:419 library/sqlite3.rst:702
|
||
msgid "Example:"
|
||
msgstr "Exemple :"
|
||
|
||
#: library/sqlite3.rst:409
|
||
msgid "Creates a user-defined aggregate function."
|
||
msgstr ""
|
||
|
||
#: library/sqlite3.rst:411
|
||
msgid ""
|
||
"The aggregate class must implement a ``step`` method, which accepts the "
|
||
"number of parameters *num_params* (if *num_params* is -1, the function may "
|
||
"take any number of arguments), and a ``finalize`` method which will return "
|
||
"the final result of the aggregate."
|
||
msgstr ""
|
||
|
||
#: library/sqlite3.rst:416
|
||
msgid ""
|
||
"The ``finalize`` method can return any of the types supported by SQLite: "
|
||
"bytes, str, int, float and ``None``."
|
||
msgstr ""
|
||
|
||
#: library/sqlite3.rst:426
|
||
msgid ""
|
||
"Creates a collation with the specified *name* and *callable*. The callable "
|
||
"will be passed two string arguments. It should return -1 if the first is "
|
||
"ordered lower than the second, 0 if they are ordered equal and 1 if the "
|
||
"first is ordered higher than the second. Note that this controls sorting "
|
||
"(ORDER BY in SQL) so your comparisons don't affect other SQL operations."
|
||
msgstr ""
|
||
|
||
#: library/sqlite3.rst:432
|
||
msgid ""
|
||
"Note that the callable will get its parameters as Python bytestrings, which "
|
||
"will normally be encoded in UTF-8."
|
||
msgstr ""
|
||
|
||
#: library/sqlite3.rst:435
|
||
msgid ""
|
||
"The following example shows a custom collation that sorts \"the wrong way\":"
|
||
msgstr ""
|
||
|
||
#: library/sqlite3.rst:439
|
||
msgid ""
|
||
"To remove a collation, call ``create_collation`` with ``None`` as callable::"
|
||
msgstr ""
|
||
|
||
#: library/sqlite3.rst:446
|
||
msgid ""
|
||
"You can call this method from a different thread to abort any queries that "
|
||
"might be executing on the connection. The query will then abort and the "
|
||
"caller will get an exception."
|
||
msgstr ""
|
||
|
||
#: library/sqlite3.rst:453
|
||
msgid ""
|
||
"This routine registers a callback. The callback is invoked for each attempt "
|
||
"to access a column of a table in the database. The callback should return :"
|
||
"const:`SQLITE_OK` if access is allowed, :const:`SQLITE_DENY` if the entire "
|
||
"SQL statement should be aborted with an error and :const:`SQLITE_IGNORE` if "
|
||
"the column should be treated as a NULL value. These constants are available "
|
||
"in the :mod:`sqlite3` module."
|
||
msgstr ""
|
||
|
||
#: library/sqlite3.rst:460
|
||
msgid ""
|
||
"The first argument to the callback signifies what kind of operation is to be "
|
||
"authorized. The second and third argument will be arguments or :const:`None` "
|
||
"depending on the first argument. The 4th argument is the name of the "
|
||
"database (\"main\", \"temp\", etc.) if applicable. The 5th argument is the "
|
||
"name of the inner-most trigger or view that is responsible for the access "
|
||
"attempt or :const:`None` if this access attempt is directly from input SQL "
|
||
"code."
|
||
msgstr ""
|
||
|
||
#: library/sqlite3.rst:467
|
||
msgid ""
|
||
"Please consult the SQLite documentation about the possible values for the "
|
||
"first argument and the meaning of the second and third argument depending on "
|
||
"the first one. All necessary constants are available in the :mod:`sqlite3` "
|
||
"module."
|
||
msgstr ""
|
||
|
||
#: library/sqlite3.rst:474
|
||
msgid ""
|
||
"This routine registers a callback. The callback is invoked for every *n* "
|
||
"instructions of the SQLite virtual machine. This is useful if you want to "
|
||
"get called from SQLite during long-running operations, for example to update "
|
||
"a GUI."
|
||
msgstr ""
|
||
|
||
#: library/sqlite3.rst:479
|
||
msgid ""
|
||
"If you want to clear any previously installed progress handler, call the "
|
||
"method with :const:`None` for *handler*."
|
||
msgstr ""
|
||
|
||
#: library/sqlite3.rst:482
|
||
msgid ""
|
||
"Returning a non-zero value from the handler function will terminate the "
|
||
"currently executing query and cause it to raise an :exc:`OperationalError` "
|
||
"exception."
|
||
msgstr ""
|
||
|
||
#: library/sqlite3.rst:489
|
||
msgid ""
|
||
"Registers *trace_callback* to be called for each SQL statement that is "
|
||
"actually executed by the SQLite backend."
|
||
msgstr ""
|
||
|
||
#: library/sqlite3.rst:492
|
||
msgid ""
|
||
"The only argument passed to the callback is the statement (as :class:`str`) "
|
||
"that is being executed. The return value of the callback is ignored. Note "
|
||
"that the backend does not only run statements passed to the :meth:`Cursor."
|
||
"execute` methods. Other sources include the :ref:`transaction management "
|
||
"<sqlite3-controlling-transactions>` of the sqlite3 module and the execution "
|
||
"of triggers defined in the current database."
|
||
msgstr ""
|
||
|
||
#: library/sqlite3.rst:500
|
||
msgid ""
|
||
"Passing :const:`None` as *trace_callback* will disable the trace callback."
|
||
msgstr ""
|
||
|
||
#: library/sqlite3.rst:503
|
||
msgid ""
|
||
"Exceptions raised in the trace callback are not propagated. As a development "
|
||
"and debugging aid, use :meth:`~sqlite3.enable_callback_tracebacks` to enable "
|
||
"printing tracebacks from exceptions raised in the trace callback."
|
||
msgstr ""
|
||
|
||
#: library/sqlite3.rst:513
|
||
msgid ""
|
||
"This routine allows/disallows the SQLite engine to load SQLite extensions "
|
||
"from shared libraries. SQLite extensions can define new functions, "
|
||
"aggregates or whole new virtual table implementations. One well-known "
|
||
"extension is the fulltext-search extension distributed with SQLite."
|
||
msgstr ""
|
||
|
||
#: library/sqlite3.rst:535
|
||
msgid "Loadable extensions are disabled by default. See [#f1]_."
|
||
msgstr ""
|
||
|
||
#: library/sqlite3.rst:520
|
||
msgid ""
|
||
"Raises an :ref:`auditing event <auditing>` ``sqlite3.enable_load_extension`` "
|
||
"with arguments ``connection``, ``enabled``."
|
||
msgstr ""
|
||
|
||
#: library/sqlite3.rst:524
|
||
msgid "Added the ``sqlite3.enable_load_extension`` auditing event."
|
||
msgstr ""
|
||
|
||
#: library/sqlite3.rst:531
|
||
msgid ""
|
||
"This routine loads a SQLite extension from a shared library. You have to "
|
||
"enable extension loading with :meth:`enable_load_extension` before you can "
|
||
"use this routine."
|
||
msgstr ""
|
||
|
||
#: library/sqlite3.rst:537
|
||
msgid ""
|
||
"Raises an :ref:`auditing event <auditing>` ``sqlite3.load_extension`` with "
|
||
"arguments ``connection``, ``path``."
|
||
msgstr ""
|
||
|
||
#: library/sqlite3.rst:541
|
||
msgid "Added the ``sqlite3.load_extension`` auditing event."
|
||
msgstr ""
|
||
|
||
#: library/sqlite3.rst:546
|
||
msgid ""
|
||
"You can change this attribute to a callable that accepts the cursor and the "
|
||
"original row as a tuple and will return the real result row. This way, you "
|
||
"can implement more advanced ways of returning results, such as returning an "
|
||
"object that can also access columns by name."
|
||
msgstr ""
|
||
|
||
#: library/sqlite3.rst:555
|
||
msgid ""
|
||
"If returning a tuple doesn't suffice and you want name-based access to "
|
||
"columns, you should consider setting :attr:`row_factory` to the highly-"
|
||
"optimized :class:`sqlite3.Row` type. :class:`Row` provides both index-based "
|
||
"and case-insensitive name-based access to columns with almost no memory "
|
||
"overhead. It will probably be better than your own custom dictionary-based "
|
||
"approach or even a db_row based solution."
|
||
msgstr ""
|
||
|
||
#: library/sqlite3.rst:567
|
||
msgid ""
|
||
"Using this attribute you can control what objects are returned for the "
|
||
"``TEXT`` data type. By default, this attribute is set to :class:`str` and "
|
||
"the :mod:`sqlite3` module will return :class:`str` objects for ``TEXT``. If "
|
||
"you want to return :class:`bytes` instead, you can set it to :class:`bytes`."
|
||
msgstr ""
|
||
|
||
#: library/sqlite3.rst:572
|
||
msgid ""
|
||
"You can also set it to any other callable that accepts a single bytestring "
|
||
"parameter and returns the resulting object."
|
||
msgstr ""
|
||
|
||
#: library/sqlite3.rst:575
|
||
msgid "See the following example code for illustration:"
|
||
msgstr ""
|
||
|
||
#: library/sqlite3.rst:582
|
||
msgid ""
|
||
"Returns the total number of database rows that have been modified, inserted, "
|
||
"or deleted since the database connection was opened."
|
||
msgstr ""
|
||
|
||
#: library/sqlite3.rst:588
|
||
msgid ""
|
||
"Returns an iterator to dump the database in an SQL text format. Useful when "
|
||
"saving an in-memory database for later restoration. This function provides "
|
||
"the same capabilities as the :kbd:`.dump` command in the :program:`sqlite3` "
|
||
"shell."
|
||
msgstr ""
|
||
|
||
#: library/sqlite3.rst:593
|
||
msgid "Example::"
|
||
msgstr "Exemple ::"
|
||
|
||
#: library/sqlite3.rst:607
|
||
msgid ""
|
||
"This method makes a backup of a SQLite database even while it's being "
|
||
"accessed by other clients, or concurrently by the same connection. The copy "
|
||
"will be written into the mandatory argument *target*, that must be another :"
|
||
"class:`Connection` instance."
|
||
msgstr ""
|
||
|
||
#: library/sqlite3.rst:612
|
||
msgid ""
|
||
"By default, or when *pages* is either ``0`` or a negative integer, the "
|
||
"entire database is copied in a single step; otherwise the method performs a "
|
||
"loop copying up to *pages* pages at a time."
|
||
msgstr ""
|
||
|
||
#: library/sqlite3.rst:616
|
||
msgid ""
|
||
"If *progress* is specified, it must either be ``None`` or a callable object "
|
||
"that will be executed at each iteration with three integer arguments, "
|
||
"respectively the *status* of the last iteration, the *remaining* number of "
|
||
"pages still to be copied and the *total* number of pages."
|
||
msgstr ""
|
||
|
||
#: library/sqlite3.rst:621
|
||
msgid ""
|
||
"The *name* argument specifies the database name that will be copied: it must "
|
||
"be a string containing either ``\"main\"``, the default, to indicate the "
|
||
"main database, ``\"temp\"`` to indicate the temporary database or the name "
|
||
"specified after the ``AS`` keyword in an ``ATTACH DATABASE`` statement for "
|
||
"an attached database."
|
||
msgstr ""
|
||
|
||
#: library/sqlite3.rst:627
|
||
msgid ""
|
||
"The *sleep* argument specifies the number of seconds to sleep by between "
|
||
"successive attempts to backup remaining pages, can be specified either as an "
|
||
"integer or a floating point value."
|
||
msgstr ""
|
||
|
||
#: library/sqlite3.rst:631
|
||
msgid "Example 1, copy an existing database into another::"
|
||
msgstr ""
|
||
|
||
#: library/sqlite3.rst:645
|
||
msgid "Example 2, copy an existing database into a transient copy::"
|
||
msgstr ""
|
||
|
||
#: library/sqlite3.rst:659
|
||
msgid "Cursor Objects"
|
||
msgstr ""
|
||
|
||
#: library/sqlite3.rst:663
|
||
msgid "A :class:`Cursor` instance has the following attributes and methods."
|
||
msgstr ""
|
||
|
||
#: library/sqlite3.rst:670
|
||
msgid ""
|
||
"Executes an SQL statement. Values may be bound to the statement using :ref:"
|
||
"`placeholders <sqlite3-placeholders>`."
|
||
msgstr ""
|
||
|
||
#: library/sqlite3.rst:673
|
||
msgid ""
|
||
":meth:`execute` will only execute a single SQL statement. If you try to "
|
||
"execute more than one statement with it, it will raise a :exc:`.Warning`. "
|
||
"Use :meth:`executescript` if you want to execute multiple SQL statements "
|
||
"with one call."
|
||
msgstr ""
|
||
|
||
#: library/sqlite3.rst:681
|
||
msgid ""
|
||
"Executes a :ref:`parameterized <sqlite3-placeholders>` SQL command against "
|
||
"all parameter sequences or mappings found in the sequence "
|
||
"*seq_of_parameters*. The :mod:`sqlite3` module also allows using an :term:"
|
||
"`iterator` yielding parameters instead of a sequence."
|
||
msgstr ""
|
||
|
||
#: library/sqlite3.rst:688
|
||
msgid "Here's a shorter example using a :term:`generator`:"
|
||
msgstr ""
|
||
|
||
#: library/sqlite3.rst:695
|
||
msgid ""
|
||
"This is a nonstandard convenience method for executing multiple SQL "
|
||
"statements at once. It issues a ``COMMIT`` statement first, then executes "
|
||
"the SQL script it gets as a parameter. This method disregards :attr:"
|
||
"`isolation_level`; any transaction control must be added to *sql_script*."
|
||
msgstr ""
|
||
|
||
#: library/sqlite3.rst:700
|
||
msgid "*sql_script* can be an instance of :class:`str`."
|
||
msgstr ""
|
||
|
||
#: library/sqlite3.rst:709
|
||
msgid ""
|
||
"Fetches the next row of a query result set, returning a single sequence, or :"
|
||
"const:`None` when no more data is available."
|
||
msgstr ""
|
||
|
||
#: library/sqlite3.rst:715
|
||
msgid ""
|
||
"Fetches the next set of rows of a query result, returning a list. An empty "
|
||
"list is returned when no more rows are available."
|
||
msgstr ""
|
||
|
||
#: library/sqlite3.rst:718
|
||
msgid ""
|
||
"The number of rows to fetch per call is specified by the *size* parameter. "
|
||
"If it is not given, the cursor's arraysize determines the number of rows to "
|
||
"be fetched. The method should try to fetch as many rows as indicated by the "
|
||
"size parameter. If this is not possible due to the specified number of rows "
|
||
"not being available, fewer rows may be returned."
|
||
msgstr ""
|
||
|
||
#: library/sqlite3.rst:724
|
||
msgid ""
|
||
"Note there are performance considerations involved with the *size* "
|
||
"parameter. For optimal performance, it is usually best to use the arraysize "
|
||
"attribute. If the *size* parameter is used, then it is best for it to retain "
|
||
"the same value from one :meth:`fetchmany` call to the next."
|
||
msgstr ""
|
||
|
||
#: library/sqlite3.rst:731
|
||
msgid ""
|
||
"Fetches all (remaining) rows of a query result, returning a list. Note that "
|
||
"the cursor's arraysize attribute can affect the performance of this "
|
||
"operation. An empty list is returned when no rows are available."
|
||
msgstr ""
|
||
|
||
#: library/sqlite3.rst:737
|
||
msgid "Close the cursor now (rather than whenever ``__del__`` is called)."
|
||
msgstr ""
|
||
|
||
#: library/sqlite3.rst:739
|
||
msgid ""
|
||
"The cursor will be unusable from this point forward; a :exc:"
|
||
"`ProgrammingError` exception will be raised if any operation is attempted "
|
||
"with the cursor."
|
||
msgstr ""
|
||
|
||
#: library/sqlite3.rst:748
|
||
msgid "Required by the DB-API. Is a no-op in :mod:`sqlite3`."
|
||
msgstr ""
|
||
|
||
#: library/sqlite3.rst:752
|
||
msgid ""
|
||
"Although the :class:`Cursor` class of the :mod:`sqlite3` module implements "
|
||
"this attribute, the database engine's own support for the determination of "
|
||
"\"rows affected\"/\"rows selected\" is quirky."
|
||
msgstr ""
|
||
|
||
#: library/sqlite3.rst:756
|
||
msgid ""
|
||
"For :meth:`executemany` statements, the number of modifications are summed "
|
||
"up into :attr:`rowcount`."
|
||
msgstr ""
|
||
|
||
#: library/sqlite3.rst:759
|
||
msgid ""
|
||
"As required by the Python DB API Spec, the :attr:`rowcount` attribute \"is "
|
||
"-1 in case no ``executeXX()`` has been performed on the cursor or the "
|
||
"rowcount of the last operation is not determinable by the interface\". This "
|
||
"includes ``SELECT`` statements because we cannot determine the number of "
|
||
"rows a query produced until all rows were fetched."
|
||
msgstr ""
|
||
|
||
#: library/sqlite3.rst:767
|
||
msgid ""
|
||
"This read-only attribute provides the rowid of the last modified row. It is "
|
||
"only set if you issued an ``INSERT`` or a ``REPLACE`` statement using the :"
|
||
"meth:`execute` method. For operations other than ``INSERT`` or ``REPLACE`` "
|
||
"or when :meth:`executemany` is called, :attr:`lastrowid` is set to :const:"
|
||
"`None`."
|
||
msgstr ""
|
||
|
||
#: library/sqlite3.rst:773
|
||
msgid ""
|
||
"If the ``INSERT`` or ``REPLACE`` statement failed to insert the previous "
|
||
"successful rowid is returned."
|
||
msgstr ""
|
||
|
||
#: library/sqlite3.rst:776
|
||
msgid "Added support for the ``REPLACE`` statement."
|
||
msgstr ""
|
||
|
||
#: library/sqlite3.rst:781
|
||
msgid ""
|
||
"Read/write attribute that controls the number of rows returned by :meth:"
|
||
"`fetchmany`. The default value is 1 which means a single row would be "
|
||
"fetched per call."
|
||
msgstr ""
|
||
|
||
#: library/sqlite3.rst:786
|
||
msgid ""
|
||
"This read-only attribute provides the column names of the last query. To "
|
||
"remain compatible with the Python DB API, it returns a 7-tuple for each "
|
||
"column where the last six items of each tuple are :const:`None`."
|
||
msgstr ""
|
||
|
||
#: library/sqlite3.rst:790
|
||
msgid "It is set for ``SELECT`` statements without any matching rows as well."
|
||
msgstr ""
|
||
|
||
#: library/sqlite3.rst:794
|
||
msgid ""
|
||
"This read-only attribute provides the SQLite database :class:`Connection` "
|
||
"used by the :class:`Cursor` object. A :class:`Cursor` object created by "
|
||
"calling :meth:`con.cursor() <Connection.cursor>` will have a :attr:"
|
||
"`connection` attribute that refers to *con*::"
|
||
msgstr ""
|
||
|
||
#: library/sqlite3.rst:807
|
||
msgid "Row Objects"
|
||
msgstr ""
|
||
|
||
#: library/sqlite3.rst:811
|
||
msgid ""
|
||
"A :class:`Row` instance serves as a highly optimized :attr:`~Connection."
|
||
"row_factory` for :class:`Connection` objects. It tries to mimic a tuple in "
|
||
"most of its features."
|
||
msgstr ""
|
||
|
||
#: library/sqlite3.rst:815
|
||
msgid ""
|
||
"It supports mapping access by column name and index, iteration, "
|
||
"representation, equality testing and :func:`len`."
|
||
msgstr ""
|
||
|
||
#: library/sqlite3.rst:818
|
||
msgid ""
|
||
"If two :class:`Row` objects have exactly the same columns and their members "
|
||
"are equal, they compare equal."
|
||
msgstr ""
|
||
|
||
#: library/sqlite3.rst:823
|
||
msgid ""
|
||
"This method returns a list of column names. Immediately after a query, it is "
|
||
"the first member of each tuple in :attr:`Cursor.description`."
|
||
msgstr ""
|
||
|
||
#: library/sqlite3.rst:826
|
||
msgid "Added support of slicing."
|
||
msgstr ""
|
||
|
||
#: library/sqlite3.rst:829
|
||
msgid "Let's assume we initialize a table as in the example given above::"
|
||
msgstr ""
|
||
|
||
#: library/sqlite3.rst:841
|
||
msgid "Now we plug :class:`Row` in::"
|
||
msgstr ""
|
||
|
||
#: library/sqlite3.rst:873
|
||
msgid "Exceptions"
|
||
msgstr "Exceptions"
|
||
|
||
#: library/sqlite3.rst:877
|
||
msgid "A subclass of :exc:`Exception`."
|
||
msgstr ""
|
||
|
||
#: library/sqlite3.rst:881
|
||
msgid ""
|
||
"The base class of the other exceptions in this module. It is a subclass of :"
|
||
"exc:`Exception`."
|
||
msgstr ""
|
||
|
||
#: library/sqlite3.rst:886
|
||
msgid "Exception raised for errors that are related to the database."
|
||
msgstr ""
|
||
|
||
#: library/sqlite3.rst:890
|
||
msgid ""
|
||
"Exception raised when the relational integrity of the database is affected, "
|
||
"e.g. a foreign key check fails. It is a subclass of :exc:`DatabaseError`."
|
||
msgstr ""
|
||
|
||
#: library/sqlite3.rst:895
|
||
msgid ""
|
||
"Exception raised for programming errors, e.g. table not found or already "
|
||
"exists, syntax error in the SQL statement, wrong number of parameters "
|
||
"specified, etc. It is a subclass of :exc:`DatabaseError`."
|
||
msgstr ""
|
||
|
||
#: library/sqlite3.rst:901
|
||
msgid ""
|
||
"Exception raised for errors that are related to the database's operation and "
|
||
"not necessarily under the control of the programmer, e.g. an unexpected "
|
||
"disconnect occurs, the data source name is not found, a transaction could "
|
||
"not be processed, etc. It is a subclass of :exc:`DatabaseError`."
|
||
msgstr ""
|
||
|
||
#: library/sqlite3.rst:908
|
||
msgid ""
|
||
"Exception raised in case a method or database API was used which is not "
|
||
"supported by the database, e.g. calling the :meth:`~Connection.rollback` "
|
||
"method on a connection that does not support transaction or has transactions "
|
||
"turned off. It is a subclass of :exc:`DatabaseError`."
|
||
msgstr ""
|
||
|
||
#: library/sqlite3.rst:917
|
||
msgid "SQLite and Python types"
|
||
msgstr ""
|
||
|
||
#: library/sqlite3.rst:921
|
||
msgid "Introduction"
|
||
msgstr "Introduction"
|
||
|
||
#: library/sqlite3.rst:923
|
||
msgid ""
|
||
"SQLite natively supports the following types: ``NULL``, ``INTEGER``, "
|
||
"``REAL``, ``TEXT``, ``BLOB``."
|
||
msgstr ""
|
||
|
||
#: library/sqlite3.rst:926
|
||
msgid ""
|
||
"The following Python types can thus be sent to SQLite without any problem:"
|
||
msgstr ""
|
||
|
||
#: library/sqlite3.rst:946
|
||
msgid "Python type"
|
||
msgstr "Type Python"
|
||
|
||
#: library/sqlite3.rst:946
|
||
msgid "SQLite type"
|
||
msgstr "SQLite type"
|
||
|
||
#: library/sqlite3.rst:948
|
||
msgid ":const:`None`"
|
||
msgstr ":const:`None`"
|
||
|
||
#: library/sqlite3.rst:948
|
||
msgid "``NULL``"
|
||
msgstr "``NULL``"
|
||
|
||
#: library/sqlite3.rst:950
|
||
msgid ":class:`int`"
|
||
msgstr ":class:`int`"
|
||
|
||
#: library/sqlite3.rst:950
|
||
msgid "``INTEGER``"
|
||
msgstr "``INTEGER``"
|
||
|
||
#: library/sqlite3.rst:952
|
||
msgid ":class:`float`"
|
||
msgstr ":class:`float`"
|
||
|
||
#: library/sqlite3.rst:952
|
||
msgid "``REAL``"
|
||
msgstr "``REAL``"
|
||
|
||
#: library/sqlite3.rst:937
|
||
msgid ":class:`str`"
|
||
msgstr ":class:`str`"
|
||
|
||
#: library/sqlite3.rst:954
|
||
msgid "``TEXT``"
|
||
msgstr "``TEXT``"
|
||
|
||
#: library/sqlite3.rst:957
|
||
msgid ":class:`bytes`"
|
||
msgstr ":class:`bytes`"
|
||
|
||
#: library/sqlite3.rst:957
|
||
msgid "``BLOB``"
|
||
msgstr "``BLOB``"
|
||
|
||
#: library/sqlite3.rst:943
|
||
msgid "This is how SQLite types are converted to Python types by default:"
|
||
msgstr ""
|
||
|
||
#: library/sqlite3.rst:954
|
||
msgid "depends on :attr:`~Connection.text_factory`, :class:`str` by default"
|
||
msgstr ""
|
||
|
||
#: library/sqlite3.rst:960
|
||
msgid ""
|
||
"The type system of the :mod:`sqlite3` module is extensible in two ways: you "
|
||
"can store additional Python types in a SQLite database via object "
|
||
"adaptation, and you can let the :mod:`sqlite3` module convert SQLite types "
|
||
"to different Python types via converters."
|
||
msgstr ""
|
||
|
||
#: library/sqlite3.rst:967
|
||
msgid "Using adapters to store additional Python types in SQLite databases"
|
||
msgstr ""
|
||
|
||
#: library/sqlite3.rst:969
|
||
msgid ""
|
||
"As described before, SQLite supports only a limited set of types natively. "
|
||
"To use other Python types with SQLite, you must **adapt** them to one of the "
|
||
"sqlite3 module's supported types for SQLite: one of NoneType, int, float, "
|
||
"str, bytes."
|
||
msgstr ""
|
||
|
||
#: library/sqlite3.rst:974
|
||
msgid ""
|
||
"There are two ways to enable the :mod:`sqlite3` module to adapt a custom "
|
||
"Python type to one of the supported ones."
|
||
msgstr ""
|
||
|
||
#: library/sqlite3.rst:979
|
||
msgid "Letting your object adapt itself"
|
||
msgstr ""
|
||
|
||
#: library/sqlite3.rst:981
|
||
msgid ""
|
||
"This is a good approach if you write the class yourself. Let's suppose you "
|
||
"have a class like this::"
|
||
msgstr ""
|
||
|
||
#: library/sqlite3.rst:988
|
||
msgid ""
|
||
"Now you want to store the point in a single SQLite column. First you'll "
|
||
"have to choose one of the supported types to be used for representing the "
|
||
"point. Let's just use str and separate the coordinates using a semicolon. "
|
||
"Then you need to give your class a method ``__conform__(self, protocol)`` "
|
||
"which must return the converted value. The parameter *protocol* will be :"
|
||
"class:`PrepareProtocol`."
|
||
msgstr ""
|
||
|
||
#: library/sqlite3.rst:998
|
||
msgid "Registering an adapter callable"
|
||
msgstr ""
|
||
|
||
#: library/sqlite3.rst:1000
|
||
msgid ""
|
||
"The other possibility is to create a function that converts the type to the "
|
||
"string representation and register the function with :meth:"
|
||
"`register_adapter`."
|
||
msgstr ""
|
||
|
||
#: library/sqlite3.rst:1005
|
||
msgid ""
|
||
"The :mod:`sqlite3` module has two default adapters for Python's built-in :"
|
||
"class:`datetime.date` and :class:`datetime.datetime` types. Now let's "
|
||
"suppose we want to store :class:`datetime.datetime` objects not in ISO "
|
||
"representation, but as a Unix timestamp."
|
||
msgstr ""
|
||
|
||
#: library/sqlite3.rst:1014
|
||
msgid "Converting SQLite values to custom Python types"
|
||
msgstr ""
|
||
|
||
#: library/sqlite3.rst:1016
|
||
msgid ""
|
||
"Writing an adapter lets you send custom Python types to SQLite. But to make "
|
||
"it really useful we need to make the Python to SQLite to Python roundtrip "
|
||
"work."
|
||
msgstr ""
|
||
|
||
#: library/sqlite3.rst:1019
|
||
msgid "Enter converters."
|
||
msgstr ""
|
||
|
||
#: library/sqlite3.rst:1021
|
||
msgid ""
|
||
"Let's go back to the :class:`Point` class. We stored the x and y coordinates "
|
||
"separated via semicolons as strings in SQLite."
|
||
msgstr ""
|
||
|
||
#: library/sqlite3.rst:1024
|
||
msgid ""
|
||
"First, we'll define a converter function that accepts the string as a "
|
||
"parameter and constructs a :class:`Point` object from it."
|
||
msgstr ""
|
||
|
||
#: library/sqlite3.rst:1029
|
||
msgid ""
|
||
"Converter functions **always** get called with a :class:`bytes` object, no "
|
||
"matter under which data type you sent the value to SQLite."
|
||
msgstr ""
|
||
|
||
#: library/sqlite3.rst:1038
|
||
msgid ""
|
||
"Now you need to make the :mod:`sqlite3` module know that what you select "
|
||
"from the database is actually a point. There are two ways of doing this:"
|
||
msgstr ""
|
||
|
||
#: library/sqlite3.rst:1041
|
||
msgid "Implicitly via the declared type"
|
||
msgstr ""
|
||
|
||
#: library/sqlite3.rst:1043
|
||
msgid "Explicitly via the column name"
|
||
msgstr ""
|
||
|
||
#: library/sqlite3.rst:1045
|
||
msgid ""
|
||
"Both ways are described in section :ref:`sqlite3-module-contents`, in the "
|
||
"entries for the constants :const:`PARSE_DECLTYPES` and :const:"
|
||
"`PARSE_COLNAMES`."
|
||
msgstr ""
|
||
|
||
#: library/sqlite3.rst:1048
|
||
msgid "The following example illustrates both approaches."
|
||
msgstr ""
|
||
|
||
#: library/sqlite3.rst:1054
|
||
msgid "Default adapters and converters"
|
||
msgstr ""
|
||
|
||
#: library/sqlite3.rst:1056
|
||
msgid ""
|
||
"There are default adapters for the date and datetime types in the datetime "
|
||
"module. They will be sent as ISO dates/ISO timestamps to SQLite."
|
||
msgstr ""
|
||
|
||
#: library/sqlite3.rst:1059
|
||
msgid ""
|
||
"The default converters are registered under the name \"date\" for :class:"
|
||
"`datetime.date` and under the name \"timestamp\" for :class:`datetime."
|
||
"datetime`."
|
||
msgstr ""
|
||
|
||
#: library/sqlite3.rst:1063
|
||
msgid ""
|
||
"This way, you can use date/timestamps from Python without any additional "
|
||
"fiddling in most cases. The format of the adapters is also compatible with "
|
||
"the experimental SQLite date/time functions."
|
||
msgstr ""
|
||
|
||
#: library/sqlite3.rst:1067
|
||
msgid "The following example demonstrates this."
|
||
msgstr ""
|
||
|
||
#: library/sqlite3.rst:1071
|
||
msgid ""
|
||
"If a timestamp stored in SQLite has a fractional part longer than 6 numbers, "
|
||
"its value will be truncated to microsecond precision by the timestamp "
|
||
"converter."
|
||
msgstr ""
|
||
|
||
#: library/sqlite3.rst:1077
|
||
msgid ""
|
||
"The default \"timestamp\" converter ignores UTC offsets in the database and "
|
||
"always returns a naive :class:`datetime.datetime` object. To preserve UTC "
|
||
"offsets in timestamps, either leave converters disabled, or register an "
|
||
"offset-aware converter with :func:`register_converter`."
|
||
msgstr ""
|
||
|
||
#: library/sqlite3.rst:1085
|
||
msgid "Controlling Transactions"
|
||
msgstr ""
|
||
|
||
#: library/sqlite3.rst:1087
|
||
msgid ""
|
||
"The underlying ``sqlite3`` library operates in ``autocommit`` mode by "
|
||
"default, but the Python :mod:`sqlite3` module by default does not."
|
||
msgstr ""
|
||
|
||
#: library/sqlite3.rst:1090
|
||
msgid ""
|
||
"``autocommit`` mode means that statements that modify the database take "
|
||
"effect immediately. A ``BEGIN`` or ``SAVEPOINT`` statement disables "
|
||
"``autocommit`` mode, and a ``COMMIT``, a ``ROLLBACK``, or a ``RELEASE`` that "
|
||
"ends the outermost transaction, turns ``autocommit`` mode back on."
|
||
msgstr ""
|
||
|
||
#: library/sqlite3.rst:1095
|
||
msgid ""
|
||
"The Python :mod:`sqlite3` module by default issues a ``BEGIN`` statement "
|
||
"implicitly before a Data Modification Language (DML) statement (i.e. "
|
||
"``INSERT``/``UPDATE``/``DELETE``/``REPLACE``)."
|
||
msgstr ""
|
||
|
||
#: library/sqlite3.rst:1099
|
||
msgid ""
|
||
"You can control which kind of ``BEGIN`` statements :mod:`sqlite3` implicitly "
|
||
"executes via the *isolation_level* parameter to the :func:`connect` call, or "
|
||
"via the :attr:`isolation_level` property of connections. If you specify no "
|
||
"*isolation_level*, a plain ``BEGIN`` is used, which is equivalent to "
|
||
"specifying ``DEFERRED``. Other possible values are ``IMMEDIATE`` and "
|
||
"``EXCLUSIVE``."
|
||
msgstr ""
|
||
|
||
#: library/sqlite3.rst:1106
|
||
msgid ""
|
||
"You can disable the :mod:`sqlite3` module's implicit transaction management "
|
||
"by setting :attr:`isolation_level` to ``None``. This will leave the "
|
||
"underlying ``sqlite3`` library operating in ``autocommit`` mode. You can "
|
||
"then completely control the transaction state by explicitly issuing "
|
||
"``BEGIN``, ``ROLLBACK``, ``SAVEPOINT``, and ``RELEASE`` statements in your "
|
||
"code."
|
||
msgstr ""
|
||
|
||
#: library/sqlite3.rst:1112
|
||
msgid ""
|
||
"Note that :meth:`~Cursor.executescript` disregards :attr:`isolation_level`; "
|
||
"any transaction control must be added explicitly."
|
||
msgstr ""
|
||
|
||
#: library/sqlite3.rst:1115
|
||
msgid ""
|
||
":mod:`sqlite3` used to implicitly commit an open transaction before DDL "
|
||
"statements. This is no longer the case."
|
||
msgstr ""
|
||
|
||
#: library/sqlite3.rst:1121
|
||
msgid "Using :mod:`sqlite3` efficiently"
|
||
msgstr ""
|
||
|
||
#: library/sqlite3.rst:1125
|
||
msgid "Using shortcut methods"
|
||
msgstr ""
|
||
|
||
#: library/sqlite3.rst:1127
|
||
msgid ""
|
||
"Using the nonstandard :meth:`execute`, :meth:`executemany` and :meth:"
|
||
"`executescript` methods of the :class:`Connection` object, your code can be "
|
||
"written more concisely because you don't have to create the (often "
|
||
"superfluous) :class:`Cursor` objects explicitly. Instead, the :class:"
|
||
"`Cursor` objects are created implicitly and these shortcut methods return "
|
||
"the cursor objects. This way, you can execute a ``SELECT`` statement and "
|
||
"iterate over it directly using only a single call on the :class:`Connection` "
|
||
"object."
|
||
msgstr ""
|
||
|
||
#: library/sqlite3.rst:1139
|
||
msgid "Accessing columns by name instead of by index"
|
||
msgstr ""
|
||
|
||
#: library/sqlite3.rst:1141
|
||
msgid ""
|
||
"One useful feature of the :mod:`sqlite3` module is the built-in :class:"
|
||
"`sqlite3.Row` class designed to be used as a row factory."
|
||
msgstr ""
|
||
|
||
#: library/sqlite3.rst:1144
|
||
msgid ""
|
||
"Rows wrapped with this class can be accessed both by index (like tuples) and "
|
||
"case-insensitively by name:"
|
||
msgstr ""
|
||
|
||
#: library/sqlite3.rst:1151
|
||
msgid "Using the connection as a context manager"
|
||
msgstr ""
|
||
|
||
#: library/sqlite3.rst:1153
|
||
msgid ""
|
||
"Connection objects can be used as context managers that automatically commit "
|
||
"or rollback transactions. In the event of an exception, the transaction is "
|
||
"rolled back; otherwise, the transaction is committed:"
|
||
msgstr ""
|
||
|
||
#: library/sqlite3.rst:1162
|
||
msgid "Footnotes"
|
||
msgstr "Notes"
|
||
|
||
#: library/sqlite3.rst:1163
|
||
msgid ""
|
||
"The sqlite3 module is not built with loadable extension support by default, "
|
||
"because some platforms (notably macOS) have SQLite libraries which are "
|
||
"compiled without this feature. To get loadable extension support, you must "
|
||
"pass the :option:`--enable-loadable-sqlite-extensions` option to configure."
|
||
msgstr ""
|
||
|
||
#~ msgid ""
|
||
#~ "Instead, use the DB-API's parameter substitution. Put ``?`` as a "
|
||
#~ "placeholder wherever you want to use a value, and then provide a tuple of "
|
||
#~ "values as the second argument to the cursor's :meth:`~Cursor.execute` "
|
||
#~ "method. (Other database modules may use a different placeholder, such as "
|
||
#~ "``%s`` or ``:1``.) For example::"
|
||
#~ msgstr ""
|
||
#~ "À la place, utilisez la capacité DB-API de substitution des paramètres. "
|
||
#~ "Placez un ``?`` comme indicateur partout où vous voulez utiliser une "
|
||
#~ "valeur, puis fournissez un *n*-uplet de valeurs comme second argument de "
|
||
#~ "la méthode :meth:`~Cursor.execute`. D'autres modules de base de données "
|
||
#~ "peuvent utiliser un espace réservé différent, tel que ``%s`` ou ``:1``. "
|
||
#~ "Par exemple ::"
|
||
|
||
#~ msgid "https://github.com/ghaering/pysqlite"
|
||
#~ msgstr "https://github.com/ghaering/pysqlite"
|
||
|
||
#~ msgid ""
|
||
#~ "The pysqlite web page -- sqlite3 is developed externally under the name "
|
||
#~ "\"pysqlite\"."
|
||
#~ msgstr ""
|
||
#~ "La page web de *pysqlite* — *sqlite3* est développée sur un site tiers "
|
||
#~ "sous le nom *pysqlite*."
|
||
|
||
#~ msgid "Multithreading"
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#~ msgstr "Fils d'exécution"
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