132 lines
4.7 KiB
HTML
132 lines
4.7 KiB
HTML
<!DOCTYPE html>
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<html><head>
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<meta name="viewport" content="width=device-width, initial-scale=1.0">
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<meta http-equiv="content-type" content="text/html; charset=UTF-8">
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<link href="../sqlite.css" rel="stylesheet">
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<title>Translate filenames</title>
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<!-- path=../ -->
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</head>
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<body>
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<div class=nosearch>
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<a href="../index.html">
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<img class="logo" src="../images/sqlite370_banner.gif" alt="SQLite" border="0">
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</a>
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<div><!-- IE hack to prevent disappearing logo --></div>
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<div class="tagline desktoponly">
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Small. Fast. Reliable.<br>Choose any three.
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</div>
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<div class="menu mainmenu">
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<li><a href="../index.html">Home</a>
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</div>
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<!-- keywords: sqlite3_filename_database sqlite3_filename_journal sqlite3_filename_wal -->
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<div class=nosearch>
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<a href="intro.html"><h2>SQLite C Interface</h2></a>
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<h2>Translate filenames</h2>
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</div>
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<blockquote><pre>
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const char *sqlite3_filename_database(const char*);
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const char *sqlite3_filename_journal(const char*);
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const char *sqlite3_filename_wal(const char*);
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</pre></blockquote>
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<p>
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These routines are available to <a href="../vfs.html">custom VFS implementations</a> for
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translating filenames between the main database file, the journal file,
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and the WAL file.</p>
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<p>If F is the name of an sqlite database file, journal file, or WAL file
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passed by the SQLite core into the VFS, then sqlite3_filename_database(F)
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returns the name of the corresponding database file.</p>
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<p>If F is the name of an sqlite database file, journal file, or WAL file
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passed by the SQLite core into the VFS, or if F is a database filename
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obtained from <a href="../c3ref/db_filename.html">sqlite3_db_filename()</a>, then sqlite3_filename_journal(F)
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returns the name of the corresponding rollback journal file.</p>
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<p>If F is the name of an sqlite database file, journal file, or WAL file
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that was passed by the SQLite core into the VFS, or if F is a database
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filename obtained from <a href="../c3ref/db_filename.html">sqlite3_db_filename()</a>, then
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sqlite3_filename_wal(F) returns the name of the corresponding
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WAL file.</p>
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<p>In all of the above, if F is not the name of a database, journal or WAL
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filename passed into the VFS from the SQLite core and F is not the
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return value from <a href="../c3ref/db_filename.html">sqlite3_db_filename()</a>, then the result is
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undefined and is likely a memory access violation.
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</p><p>See also lists of
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<a href="objlist.html">Objects</a>,
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<a href="constlist.html">Constants</a>, and
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<a href="funclist.html">Functions</a>.</p>
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