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<a href="../c3ref/intro.html"><h2>SQLite C Interface</h2></a>
<h2>Return The Filename For A Database Connection</h2>
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<blockquote><pre>
sqlite3_filename sqlite3_db_filename(sqlite3 *db, const char *zDbName);
</pre></blockquote>
<p>
The sqlite3_db_filename(D,N) interface returns a pointer to the filename
associated with database N of connection D.
If there is no attached database N on the database
connection D, or if database N is a temporary or in-memory database, then
this function will return either a NULL pointer or an empty string.</p>
<p>The string value returned by this routine is owned and managed by
the database connection. The value will be valid until the database N
is <a href="../lang_detach.html">DETACH</a>-ed or until the database connection closes.</p>
<p>The filename returned by this function is the output of the
xFullPathname method of the <a href="../vfs.html">VFS</a>. In other words, the filename
will be an absolute pathname, even if the filename used
to open the database originally was a URI or relative pathname.</p>
<p>If the filename pointer returned by this routine is not NULL, then it
can be used as the filename input parameter to these routines:
<ul>
<li> <a href="../c3ref/uri_boolean.html">sqlite3_uri_parameter()</a>
<li> <a href="../c3ref/uri_boolean.html">sqlite3_uri_boolean()</a>
<li> <a href="../c3ref/uri_boolean.html">sqlite3_uri_int64()</a>
<li> <a href="../c3ref/filename_database.html">sqlite3_filename_database()</a>
<li> <a href="../c3ref/filename_database.html">sqlite3_filename_journal()</a>
<li> <a href="../c3ref/filename_database.html">sqlite3_filename_wal()</a>
</ul>
</p><p>See also lists of
<a href="../c3ref/objlist.html">Objects</a>,
<a href="../c3ref/constlist.html">Constants</a>, and
<a href="../c3ref/funclist.html">Functions</a>.</p>
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