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<a href="#pub-attribs">Data Fields</a> </div>
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<div class="title">apr_dbd_driver_t Struct Reference</div> </div>
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Data Fields</h2></td></tr>
<tr class="memitem:a5483b4c47dde6814395bebfb7959fb37"><td class="memItemLeft" align="right" valign="top">const char * </td><td class="memItemRight" valign="bottom"><a class="el" href="structapr__dbd__driver__t.html#a5483b4c47dde6814395bebfb7959fb37">name</a></td></tr>
<tr class="separator:a5483b4c47dde6814395bebfb7959fb37"><td class="memSeparator" colspan="2"> </td></tr>
<tr class="memitem:abe128d58439959850b95c8ff8ebd89a1"><td class="memItemLeft" align="right" valign="top">void(* </td><td class="memItemRight" valign="bottom"><a class="el" href="structapr__dbd__driver__t.html#abe128d58439959850b95c8ff8ebd89a1">init</a> )(apr_pool_t *pool)</td></tr>
<tr class="separator:abe128d58439959850b95c8ff8ebd89a1"><td class="memSeparator" colspan="2"> </td></tr>
<tr class="memitem:aa26831269f6f2255e39d67dcfc95f3a4"><td class="memItemLeft" align="right" valign="top">void *(* </td><td class="memItemRight" valign="bottom"><a class="el" href="structapr__dbd__driver__t.html#aa26831269f6f2255e39d67dcfc95f3a4">native_handle</a> )(apr_dbd_t *handle)</td></tr>
<tr class="separator:aa26831269f6f2255e39d67dcfc95f3a4"><td class="memSeparator" colspan="2"> </td></tr>
<tr class="memitem:a5ff28470f647176e6ea26e8207ab02dd"><td class="memItemLeft" align="right" valign="top">apr_dbd_t *(* </td><td class="memItemRight" valign="bottom"><a class="el" href="structapr__dbd__driver__t.html#a5ff28470f647176e6ea26e8207ab02dd">open</a> )(apr_pool_t *pool, const char *params, const char **<a class="el" href="structapr__dbd__driver__t.html#a96a1e0b8f3790421e1027671a51ca698">error</a>)</td></tr>
<tr class="separator:a5ff28470f647176e6ea26e8207ab02dd"><td class="memSeparator" colspan="2"> </td></tr>
<tr class="memitem:a644f9d26c9a3f3ebbde35fcc5caa7903"><td class="memItemLeft" align="right" valign="top">apr_status_t(* </td><td class="memItemRight" valign="bottom"><a class="el" href="structapr__dbd__driver__t.html#a644f9d26c9a3f3ebbde35fcc5caa7903">check_conn</a> )(apr_pool_t *pool, apr_dbd_t *handle)</td></tr>
<tr class="separator:a644f9d26c9a3f3ebbde35fcc5caa7903"><td class="memSeparator" colspan="2"> </td></tr>
<tr class="memitem:a51f2fb88a8f6d109e859e470c12922e2"><td class="memItemLeft" align="right" valign="top">apr_status_t(* </td><td class="memItemRight" valign="bottom"><a class="el" href="structapr__dbd__driver__t.html#a51f2fb88a8f6d109e859e470c12922e2">close</a> )(apr_dbd_t *handle)</td></tr>
<tr class="separator:a51f2fb88a8f6d109e859e470c12922e2"><td class="memSeparator" colspan="2"> </td></tr>
<tr class="memitem:a0c9507b1cdf1a221165e7e48e6b54404"><td class="memItemLeft" align="right" valign="top">int(* </td><td class="memItemRight" valign="bottom"><a class="el" href="structapr__dbd__driver__t.html#a0c9507b1cdf1a221165e7e48e6b54404">set_dbname</a> )(apr_pool_t *pool, apr_dbd_t *handle, const char *<a class="el" href="structapr__dbd__driver__t.html#a5483b4c47dde6814395bebfb7959fb37">name</a>)</td></tr>
<tr class="separator:a0c9507b1cdf1a221165e7e48e6b54404"><td class="memSeparator" colspan="2"> </td></tr>
<tr class="memitem:a665ebdcc7ccf31b394aa25b138425331"><td class="memItemLeft" align="right" valign="top">int(* </td><td class="memItemRight" valign="bottom"><a class="el" href="structapr__dbd__driver__t.html#a665ebdcc7ccf31b394aa25b138425331">start_transaction</a> )(apr_pool_t *pool, apr_dbd_t *handle, apr_dbd_transaction_t **trans)</td></tr>
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<tr class="memitem:a8ec55cbddf69f4d371017d0c985abe76"><td class="memItemLeft" align="right" valign="top">int(* </td><td class="memItemRight" valign="bottom"><a class="el" href="structapr__dbd__driver__t.html#a8ec55cbddf69f4d371017d0c985abe76">end_transaction</a> )(apr_dbd_transaction_t *trans)</td></tr>
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<tr class="memitem:ac42de1c72ac0ed642335b607d3697ce8"><td class="memItemLeft" align="right" valign="top">int(* </td><td class="memItemRight" valign="bottom"><a class="el" href="structapr__dbd__driver__t.html#ac42de1c72ac0ed642335b607d3697ce8">query</a> )(apr_dbd_t *handle, int *nrows, const char *statement)</td></tr>
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<tr class="memitem:a2df4f0cf267ce9129189e3bb47e4b98e"><td class="memItemLeft" align="right" valign="top">int(* </td><td class="memItemRight" valign="bottom"><a class="el" href="structapr__dbd__driver__t.html#a2df4f0cf267ce9129189e3bb47e4b98e">select</a> )(apr_pool_t *pool, apr_dbd_t *handle, apr_dbd_results_t **res, const char *statement, int random)</td></tr>
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<tr class="memitem:a518d4b194539fb068ef38ba16d803185"><td class="memItemLeft" align="right" valign="top">int(* </td><td class="memItemRight" valign="bottom"><a class="el" href="structapr__dbd__driver__t.html#a518d4b194539fb068ef38ba16d803185">num_cols</a> )(apr_dbd_results_t *res)</td></tr>
<tr class="separator:a518d4b194539fb068ef38ba16d803185"><td class="memSeparator" colspan="2"> </td></tr>
<tr class="memitem:a2f5afd04b4ad2ef6ce737b8bad4c0cea"><td class="memItemLeft" align="right" valign="top">int(* </td><td class="memItemRight" valign="bottom"><a class="el" href="structapr__dbd__driver__t.html#a2f5afd04b4ad2ef6ce737b8bad4c0cea">num_tuples</a> )(apr_dbd_results_t *res)</td></tr>
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<tr class="memitem:ad7257c26c42d4f399d9a1ab04cc6c17a"><td class="memItemLeft" align="right" valign="top">int(* </td><td class="memItemRight" valign="bottom"><a class="el" href="structapr__dbd__driver__t.html#ad7257c26c42d4f399d9a1ab04cc6c17a">get_row</a> )(apr_pool_t *pool, apr_dbd_results_t *res, apr_dbd_row_t **row, int rownum)</td></tr>
<tr class="separator:ad7257c26c42d4f399d9a1ab04cc6c17a"><td class="memSeparator" colspan="2"> </td></tr>
<tr class="memitem:abfe9e7ea9093304d13593fcbc893e06c"><td class="memItemLeft" align="right" valign="top">const char *(* </td><td class="memItemRight" valign="bottom"><a class="el" href="structapr__dbd__driver__t.html#abfe9e7ea9093304d13593fcbc893e06c">get_entry</a> )(const apr_dbd_row_t *row, int col)</td></tr>
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<tr class="memitem:a96a1e0b8f3790421e1027671a51ca698"><td class="memItemLeft" align="right" valign="top">const char *(* </td><td class="memItemRight" valign="bottom"><a class="el" href="structapr__dbd__driver__t.html#a96a1e0b8f3790421e1027671a51ca698">error</a> )(apr_dbd_t *handle, int errnum)</td></tr>
<tr class="separator:a96a1e0b8f3790421e1027671a51ca698"><td class="memSeparator" colspan="2"> </td></tr>
<tr class="memitem:a60deca4d8496e4ce2a4526c7a5733839"><td class="memItemLeft" align="right" valign="top">const char *(* </td><td class="memItemRight" valign="bottom"><a class="el" href="structapr__dbd__driver__t.html#a60deca4d8496e4ce2a4526c7a5733839">escape</a> )(apr_pool_t *pool, const char *string, apr_dbd_t *handle)</td></tr>
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<tr class="memitem:a2f2a54582974268e8ba3264dca640ca6"><td class="memItemLeft" align="right" valign="top">int(* </td><td class="memItemRight" valign="bottom"><a class="el" href="structapr__dbd__driver__t.html#a2f2a54582974268e8ba3264dca640ca6">prepare</a> )(apr_pool_t *pool, apr_dbd_t *handle, const char *<a class="el" href="structapr__dbd__driver__t.html#ac42de1c72ac0ed642335b607d3697ce8">query</a>, const char *label, int nargs, int nvals, <a class="el" href="group___a_p_r___util___d_b_d.html#ga19608fa5d518a5121bee23daacc5c230">apr_dbd_type_e</a> *types, apr_dbd_prepared_t **statement)</td></tr>
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<tr class="memitem:a9c68730a69a09b4ab06febb944147888"><td class="memItemLeft" align="right" valign="top">int(* </td><td class="memItemRight" valign="bottom"><a class="el" href="structapr__dbd__driver__t.html#a9c68730a69a09b4ab06febb944147888">pvquery</a> )(apr_pool_t *pool, apr_dbd_t *handle, int *nrows, apr_dbd_prepared_t *statement, va_list args)</td></tr>
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<tr class="memitem:ad0b6fca421fe2e009804ab85ab64c1db"><td class="memItemLeft" align="right" valign="top">int(* </td><td class="memItemRight" valign="bottom"><a class="el" href="structapr__dbd__driver__t.html#ad0b6fca421fe2e009804ab85ab64c1db">pvselect</a> )(apr_pool_t *pool, apr_dbd_t *handle, apr_dbd_results_t **res, apr_dbd_prepared_t *statement, int random, va_list args)</td></tr>
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<tr class="memitem:a849f8ae47843b0f2d8633d3f3b002493"><td class="memItemLeft" align="right" valign="top">int(* </td><td class="memItemRight" valign="bottom"><a class="el" href="structapr__dbd__driver__t.html#a849f8ae47843b0f2d8633d3f3b002493">pquery</a> )(apr_pool_t *pool, apr_dbd_t *handle, int *nrows, apr_dbd_prepared_t *statement, const char **args)</td></tr>
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<tr class="memitem:a1295f5431413acc31faf84342bdf6ed0"><td class="memItemLeft" align="right" valign="top">int(* </td><td class="memItemRight" valign="bottom"><a class="el" href="structapr__dbd__driver__t.html#a1295f5431413acc31faf84342bdf6ed0">pselect</a> )(apr_pool_t *pool, apr_dbd_t *handle, apr_dbd_results_t **res, apr_dbd_prepared_t *statement, int random, const char **args)</td></tr>
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<tr class="memitem:af172d65218857de1433910b92365061e"><td class="memItemLeft" align="right" valign="top">const char *(* </td><td class="memItemRight" valign="bottom"><a class="el" href="structapr__dbd__driver__t.html#af172d65218857de1433910b92365061e">get_name</a> )(const apr_dbd_results_t *res, int col)</td></tr>
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<tr class="memitem:a00d4b7a3362ced55e9b5f0c2513aa284"><td class="memItemLeft" align="right" valign="top">int(* </td><td class="memItemRight" valign="bottom"><a class="el" href="structapr__dbd__driver__t.html#a00d4b7a3362ced55e9b5f0c2513aa284">transaction_mode_get</a> )(apr_dbd_transaction_t *trans)</td></tr>
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<tr class="memitem:a81620ae15072e50976ddca1808efbba4"><td class="memItemLeft" align="right" valign="top">int(* </td><td class="memItemRight" valign="bottom"><a class="el" href="structapr__dbd__driver__t.html#a81620ae15072e50976ddca1808efbba4">transaction_mode_set</a> )(apr_dbd_transaction_t *trans, int mode)</td></tr>
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<tr class="memitem:a975698d5688012fe2810542769ac4f05"><td class="memItemLeft" align="right" valign="top">const char * </td><td class="memItemRight" valign="bottom"><a class="el" href="structapr__dbd__driver__t.html#a975698d5688012fe2810542769ac4f05">pformat</a></td></tr>
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<tr class="memitem:a9731123f5323c4d12b24065b4c36cb1a"><td class="memItemLeft" align="right" valign="top">int(* </td><td class="memItemRight" valign="bottom"><a class="el" href="structapr__dbd__driver__t.html#a9731123f5323c4d12b24065b4c36cb1a">pvbquery</a> )(apr_pool_t *pool, apr_dbd_t *handle, int *nrows, apr_dbd_prepared_t *statement, va_list args)</td></tr>
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<tr class="memitem:a003dc5921881f3d548026ba6be8044f2"><td class="memItemLeft" align="right" valign="top">int(* </td><td class="memItemRight" valign="bottom"><a class="el" href="structapr__dbd__driver__t.html#a003dc5921881f3d548026ba6be8044f2">pvbselect</a> )(apr_pool_t *pool, apr_dbd_t *handle, apr_dbd_results_t **res, apr_dbd_prepared_t *statement, int random, va_list args)</td></tr>
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<tr class="memitem:af3769b3e57bd3fcef9cadf43415320d1"><td class="memItemLeft" align="right" valign="top">int(* </td><td class="memItemRight" valign="bottom"><a class="el" href="structapr__dbd__driver__t.html#af3769b3e57bd3fcef9cadf43415320d1">pbquery</a> )(apr_pool_t *pool, apr_dbd_t *handle, int *nrows, apr_dbd_prepared_t *statement, const void **args)</td></tr>
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<tr class="memitem:abf1e22068afc62e081fbf985c2683bd9"><td class="memItemLeft" align="right" valign="top">int(* </td><td class="memItemRight" valign="bottom"><a class="el" href="structapr__dbd__driver__t.html#abf1e22068afc62e081fbf985c2683bd9">pbselect</a> )(apr_pool_t *pool, apr_dbd_t *handle, apr_dbd_results_t **res, apr_dbd_prepared_t *statement, int random, const void **args)</td></tr>
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<tr class="memitem:aa4e7085c08af67ae80cfca708ee00d4f"><td class="memItemLeft" align="right" valign="top">apr_status_t(* </td><td class="memItemRight" valign="bottom"><a class="el" href="structapr__dbd__driver__t.html#aa4e7085c08af67ae80cfca708ee00d4f">datum_get</a> )(const apr_dbd_row_t *row, int col, <a class="el" href="group___a_p_r___util___d_b_d.html#ga19608fa5d518a5121bee23daacc5c230">apr_dbd_type_e</a> type, void *data)</td></tr>
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<h2 class="groupheader">Field Documentation</h2>
<a id="a644f9d26c9a3f3ebbde35fcc5caa7903"></a>
<h2 class="memtitle"><span class="permalink"><a href="#a644f9d26c9a3f3ebbde35fcc5caa7903">◆ </a></span>check_conn</h2>
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<td class="memname">apr_status_t(* apr_dbd_driver_t::check_conn) (apr_pool_t *pool, apr_dbd_t *handle)</td>
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<p>check_conn: check status of a database connection</p>
<dl class="params"><dt>Parameters</dt><dd>
<table class="params">
<tr><td class="paramname">pool</td><td>- a pool to use for error messages (if any). </td></tr>
<tr><td class="paramname">handle</td><td>- the connection to check </td></tr>
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</dd>
</dl>
<dl class="section return"><dt>Returns</dt><dd>APR_SUCCESS or error </dd></dl>
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</div>
<a id="a51f2fb88a8f6d109e859e470c12922e2"></a>
<h2 class="memtitle"><span class="permalink"><a href="#a51f2fb88a8f6d109e859e470c12922e2">◆ </a></span>close</h2>
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<td class="memname">apr_status_t(* apr_dbd_driver_t::close) (apr_dbd_t *handle)</td>
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<p>close: close/release a connection obtained from <a class="el" href="structapr__dbd__driver__t.html#a5ff28470f647176e6ea26e8207ab02dd">open()</a></p>
<dl class="params"><dt>Parameters</dt><dd>
<table class="params">
<tr><td class="paramname">handle</td><td>- the connection to release </td></tr>
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</dd>
</dl>
<dl class="section return"><dt>Returns</dt><dd>APR_SUCCESS or error </dd></dl>
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<h2 class="memtitle"><span class="permalink"><a href="#aa4e7085c08af67ae80cfca708ee00d4f">◆ </a></span>datum_get</h2>
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<td class="memname">apr_status_t(* apr_dbd_driver_t::datum_get) (const apr_dbd_row_t *row, int col, <a class="el" href="group___a_p_r___util___d_b_d.html#ga19608fa5d518a5121bee23daacc5c230">apr_dbd_type_e</a> type, void *data)</td>
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<p>datum_get: get a binary entry from a row</p>
<dl class="params"><dt>Parameters</dt><dd>
<table class="params">
<tr><td class="paramname">row</td><td>- row pointer </td></tr>
<tr><td class="paramname">col</td><td>- entry number </td></tr>
<tr><td class="paramname">type</td><td>- type of data to get </td></tr>
<tr><td class="paramname">data</td><td>- pointer to data, allocated by the caller </td></tr>
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</dd>
</dl>
<dl class="section return"><dt>Returns</dt><dd>APR_SUCCESS, an error code on error or if col is out of bounds </dd></dl>
</div>
</div>
<a id="a8ec55cbddf69f4d371017d0c985abe76"></a>
<h2 class="memtitle"><span class="permalink"><a href="#a8ec55cbddf69f4d371017d0c985abe76">◆ </a></span>end_transaction</h2>
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<td class="memname">int(* apr_dbd_driver_t::end_transaction) (apr_dbd_transaction_t *trans)</td>
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<p>end_transaction: end a transaction (commit on success, rollback on error). May be a no-op.</p>
<dl class="params"><dt>Parameters</dt><dd>
<table class="params">
<tr><td class="paramname">trans</td><td>- the transaction. </td></tr>
</table>
</dd>
</dl>
<dl class="section return"><dt>Returns</dt><dd>0 for success or error code </dd></dl>
</div>
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<h2 class="memtitle"><span class="permalink"><a href="#a96a1e0b8f3790421e1027671a51ca698">◆ </a></span>error</h2>
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<td class="memname">const char*(* apr_dbd_driver_t::error) (apr_dbd_t *handle, int errnum)</td>
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<p>error: get current error message (if any)</p>
<dl class="params"><dt>Parameters</dt><dd>
<table class="params">
<tr><td class="paramname">handle</td><td>- the connection </td></tr>
<tr><td class="paramname">errnum</td><td>- error code from operation that returned an error </td></tr>
</table>
</dd>
</dl>
<dl class="section return"><dt>Returns</dt><dd>the database current error message, or message for errnum (implementation-dependent whether errnum is ignored) </dd></dl>
</div>
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<h2 class="memtitle"><span class="permalink"><a href="#a60deca4d8496e4ce2a4526c7a5733839">◆ </a></span>escape</h2>
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<td class="memname">const char*(* apr_dbd_driver_t::escape) (apr_pool_t *pool, const char *string, apr_dbd_t *handle)</td>
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<p>escape: escape a string so it is safe for use in query/select</p>
<dl class="params"><dt>Parameters</dt><dd>
<table class="params">
<tr><td class="paramname">pool</td><td>- pool to alloc the result from </td></tr>
<tr><td class="paramname">string</td><td>- the string to escape </td></tr>
<tr><td class="paramname">handle</td><td>- the connection </td></tr>
</table>
</dd>
</dl>
<dl class="section return"><dt>Returns</dt><dd>the escaped, safe string </dd></dl>
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<h2 class="memtitle"><span class="permalink"><a href="#abfe9e7ea9093304d13593fcbc893e06c">◆ </a></span>get_entry</h2>
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<td class="memname">const char*(* apr_dbd_driver_t::get_entry) (const apr_dbd_row_t *row, int col)</td>
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<p>get_entry: get an entry from a row</p>
<dl class="params"><dt>Parameters</dt><dd>
<table class="params">
<tr><td class="paramname">row</td><td>- row pointer </td></tr>
<tr><td class="paramname">col</td><td>- entry number </td></tr>
<tr><td class="paramname">val</td><td>- entry to fill </td></tr>
</table>
</dd>
</dl>
<dl class="section return"><dt>Returns</dt><dd>0 for success, -1 for no data, +1 for general error </dd></dl>
</div>
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<h2 class="memtitle"><span class="permalink"><a href="#af172d65218857de1433910b92365061e">◆ </a></span>get_name</h2>
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<td class="memname">const char*(* apr_dbd_driver_t::get_name) (const apr_dbd_results_t *res, int col)</td>
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<p>get_name: get a column title from a result set</p>
<dl class="params"><dt>Parameters</dt><dd>
<table class="params">
<tr><td class="paramname">res</td><td>- result set pointer </td></tr>
<tr><td class="paramname">col</td><td>- entry number </td></tr>
</table>
</dd>
</dl>
<dl class="section return"><dt>Returns</dt><dd>param name, or NULL if col is out of bounds. </dd></dl>
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<a id="ad7257c26c42d4f399d9a1ab04cc6c17a"></a>
<h2 class="memtitle"><span class="permalink"><a href="#ad7257c26c42d4f399d9a1ab04cc6c17a">◆ </a></span>get_row</h2>
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<td class="memname">int(* apr_dbd_driver_t::get_row) (apr_pool_t *pool, apr_dbd_results_t *res, apr_dbd_row_t **row, int rownum)</td>
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<p>get_row: get a row from a result set</p>
<dl class="params"><dt>Parameters</dt><dd>
<table class="params">
<tr><td class="paramname">pool</td><td>- pool to allocate the row </td></tr>
<tr><td class="paramname">res</td><td>- result set pointer </td></tr>
<tr><td class="paramname">row</td><td>- pointer to row pointer. May point to NULL on entry </td></tr>
<tr><td class="paramname">rownum</td><td>- row number, or -1 for "next row". Ignored if random access is not supported. </td></tr>
</table>
</dd>
</dl>
<dl class="section return"><dt>Returns</dt><dd>0 for success, -1 for rownum out of range or data finished </dd></dl>
</div>
</div>
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<h2 class="memtitle"><span class="permalink"><a href="#abe128d58439959850b95c8ff8ebd89a1">◆ </a></span>init</h2>
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<td class="memname">void(* apr_dbd_driver_t::init) (apr_pool_t *pool)</td>
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<p>init: allow driver to perform once-only initialisation. Called once only. May be NULL </p>
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<h2 class="memtitle"><span class="permalink"><a href="#a5483b4c47dde6814395bebfb7959fb37">◆ </a></span>name</h2>
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<td class="memname">const char* apr_dbd_driver_t::name</td>
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<p>name </p>
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<h2 class="memtitle"><span class="permalink"><a href="#aa26831269f6f2255e39d67dcfc95f3a4">◆ </a></span>native_handle</h2>
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<td class="memname">void*(* apr_dbd_driver_t::native_handle) (apr_dbd_t *handle)</td>
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<p>native_handle: return the native database handle of the underlying db</p>
<dl class="params"><dt>Parameters</dt><dd>
<table class="params">
<tr><td class="paramname">handle</td><td>- apr_dbd handle </td></tr>
</table>
</dd>
</dl>
<dl class="section return"><dt>Returns</dt><dd>- native handle </dd></dl>
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<a id="a518d4b194539fb068ef38ba16d803185"></a>
<h2 class="memtitle"><span class="permalink"><a href="#a518d4b194539fb068ef38ba16d803185">◆ </a></span>num_cols</h2>
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<td class="memname">int(* apr_dbd_driver_t::num_cols) (apr_dbd_results_t *res)</td>
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<p>num_cols: get the number of columns in a results set</p>
<dl class="params"><dt>Parameters</dt><dd>
<table class="params">
<tr><td class="paramname">res</td><td>- result set. </td></tr>
</table>
</dd>
</dl>
<dl class="section return"><dt>Returns</dt><dd>number of columns </dd></dl>
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<a id="a2f5afd04b4ad2ef6ce737b8bad4c0cea"></a>
<h2 class="memtitle"><span class="permalink"><a href="#a2f5afd04b4ad2ef6ce737b8bad4c0cea">◆ </a></span>num_tuples</h2>
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<p>num_tuples: get the number of rows in a results set of a synchronous select</p>
<dl class="params"><dt>Parameters</dt><dd>
<table class="params">
<tr><td class="paramname">res</td><td>- result set. </td></tr>
</table>
</dd>
</dl>
<dl class="section return"><dt>Returns</dt><dd>number of rows, or -1 if the results are asynchronous </dd></dl>
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<h2 class="memtitle"><span class="permalink"><a href="#a5ff28470f647176e6ea26e8207ab02dd">◆ </a></span>open</h2>
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<td class="memname">apr_dbd_t*(* apr_dbd_driver_t::open) (apr_pool_t *pool, const char *params, const char **<a class="el" href="structapr__dbd__driver__t.html#a96a1e0b8f3790421e1027671a51ca698">error</a>)</td>
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<p>open: obtain a database connection from the server rec. Must be explicitly closed when you're finished with it. WARNING: only use this when you need a connection with a lifetime other than a request</p>
<dl class="params"><dt>Parameters</dt><dd>
<table class="params">
<tr><td class="paramname">pool</td><td>- a pool to use for error messages (if any). </td></tr>
<tr><td class="paramname">params</td><td>- connection parameters. </td></tr>
<tr><td class="paramname">error</td><td>- descriptive error. </td></tr>
</table>
</dd>
</dl>
<dl class="section return"><dt>Returns</dt><dd>database handle, or NULL on error. </dd></dl>
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<a id="af3769b3e57bd3fcef9cadf43415320d1"></a>
<h2 class="memtitle"><span class="permalink"><a href="#af3769b3e57bd3fcef9cadf43415320d1">◆ </a></span>pbquery</h2>
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<td class="memname">int(* apr_dbd_driver_t::pbquery) (apr_pool_t *pool, apr_dbd_t *handle, int *nrows, apr_dbd_prepared_t *statement, const void **args)</td>
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<p>pbquery: query using a prepared statement + binary args</p>
<dl class="params"><dt>Parameters</dt><dd>
<table class="params">
<tr><td class="paramname">pool</td><td>- working pool </td></tr>
<tr><td class="paramname">handle</td><td>- the connection </td></tr>
<tr><td class="paramname">nrows</td><td>- number of rows affected. </td></tr>
<tr><td class="paramname">statement</td><td>- the prepared statement to execute </td></tr>
<tr><td class="paramname">args</td><td>- binary args to prepared statement </td></tr>
</table>
</dd>
</dl>
<dl class="section return"><dt>Returns</dt><dd>0 for success or error code </dd></dl>
</div>
</div>
<a id="abf1e22068afc62e081fbf985c2683bd9"></a>
<h2 class="memtitle"><span class="permalink"><a href="#abf1e22068afc62e081fbf985c2683bd9">◆ </a></span>pbselect</h2>
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<td class="memname">int(* apr_dbd_driver_t::pbselect) (apr_pool_t *pool, apr_dbd_t *handle, apr_dbd_results_t **res, apr_dbd_prepared_t *statement, int random, const void **args)</td>
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<p>pbselect: select using a prepared statement + binary args</p>
<dl class="params"><dt>Parameters</dt><dd>
<table class="params">
<tr><td class="paramname">pool</td><td>- working pool </td></tr>
<tr><td class="paramname">handle</td><td>- the connection </td></tr>
<tr><td class="paramname">res</td><td>- pointer to query results. May point to NULL on entry </td></tr>
<tr><td class="paramname">statement</td><td>- the prepared statement to execute </td></tr>
<tr><td class="paramname">random</td><td>- Whether to support random-access to results </td></tr>
<tr><td class="paramname">args</td><td>- binary args to prepared statement </td></tr>
</table>
</dd>
</dl>
<dl class="section return"><dt>Returns</dt><dd>0 for success or error code </dd></dl>
</div>
</div>
<a id="a975698d5688012fe2810542769ac4f05"></a>
<h2 class="memtitle"><span class="permalink"><a href="#a975698d5688012fe2810542769ac4f05">◆ </a></span>pformat</h2>
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<td class="memname">const char* apr_dbd_driver_t::pformat</td>
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<p>format of prepared statement parameters </p>
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<a id="a849f8ae47843b0f2d8633d3f3b002493"></a>
<h2 class="memtitle"><span class="permalink"><a href="#a849f8ae47843b0f2d8633d3f3b002493">◆ </a></span>pquery</h2>
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<td class="memname">int(* apr_dbd_driver_t::pquery) (apr_pool_t *pool, apr_dbd_t *handle, int *nrows, apr_dbd_prepared_t *statement, const char **args)</td>
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<p>pquery: query using a prepared statement + args</p>
<dl class="params"><dt>Parameters</dt><dd>
<table class="params">
<tr><td class="paramname">pool</td><td>- working pool </td></tr>
<tr><td class="paramname">handle</td><td>- the connection </td></tr>
<tr><td class="paramname">nrows</td><td>- number of rows affected. </td></tr>
<tr><td class="paramname">statement</td><td>- the prepared statement to execute </td></tr>
<tr><td class="paramname">args</td><td>- args to prepared statement </td></tr>
</table>
</dd>
</dl>
<dl class="section return"><dt>Returns</dt><dd>0 for success or error code </dd></dl>
</div>
</div>
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<h2 class="memtitle"><span class="permalink"><a href="#a2f2a54582974268e8ba3264dca640ca6">◆ </a></span>prepare</h2>
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<td class="memname">int(* apr_dbd_driver_t::prepare) (apr_pool_t *pool, apr_dbd_t *handle, const char *<a class="el" href="structapr__dbd__driver__t.html#ac42de1c72ac0ed642335b607d3697ce8">query</a>, const char *label, int nargs, int nvals, <a class="el" href="group___a_p_r___util___d_b_d.html#ga19608fa5d518a5121bee23daacc5c230">apr_dbd_type_e</a> *types, apr_dbd_prepared_t **statement)</td>
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<p>prepare: prepare a statement</p>
<dl class="params"><dt>Parameters</dt><dd>
<table class="params">
<tr><td class="paramname">pool</td><td>- pool to alloc the result from </td></tr>
<tr><td class="paramname">handle</td><td>- the connection </td></tr>
<tr><td class="paramname">query</td><td>- the SQL query </td></tr>
<tr><td class="paramname">label</td><td>- A label for the prepared statement. use NULL for temporary prepared statements (eg within a Request in httpd) </td></tr>
<tr><td class="paramname">nargs</td><td>- number of parameters in the query </td></tr>
<tr><td class="paramname">nvals</td><td>- number of values passed in p[b]query/select </td></tr>
<tr><td class="paramname">types</td><td>- pointer to an array with types of parameters </td></tr>
<tr><td class="paramname">statement</td><td>- statement to prepare. May point to null on entry. </td></tr>
</table>
</dd>
</dl>
<dl class="section return"><dt>Returns</dt><dd>0 for success or error code </dd></dl>
</div>
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<a id="a1295f5431413acc31faf84342bdf6ed0"></a>
<h2 class="memtitle"><span class="permalink"><a href="#a1295f5431413acc31faf84342bdf6ed0">◆ </a></span>pselect</h2>
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<td class="memname">int(* apr_dbd_driver_t::pselect) (apr_pool_t *pool, apr_dbd_t *handle, apr_dbd_results_t **res, apr_dbd_prepared_t *statement, int random, const char **args)</td>
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<p>pselect: select using a prepared statement + args</p>
<dl class="params"><dt>Parameters</dt><dd>
<table class="params">
<tr><td class="paramname">pool</td><td>- working pool </td></tr>
<tr><td class="paramname">handle</td><td>- the connection </td></tr>
<tr><td class="paramname">res</td><td>- pointer to query results. May point to NULL on entry </td></tr>
<tr><td class="paramname">statement</td><td>- the prepared statement to execute </td></tr>
<tr><td class="paramname">random</td><td>- Whether to support random-access to results </td></tr>
<tr><td class="paramname">args</td><td>- args to prepared statement </td></tr>
</table>
</dd>
</dl>
<dl class="section return"><dt>Returns</dt><dd>0 for success or error code </dd></dl>
</div>
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<h2 class="memtitle"><span class="permalink"><a href="#a9731123f5323c4d12b24065b4c36cb1a">◆ </a></span>pvbquery</h2>
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<td class="memname">int(* apr_dbd_driver_t::pvbquery) (apr_pool_t *pool, apr_dbd_t *handle, int *nrows, apr_dbd_prepared_t *statement, va_list args)</td>
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<p>pvbquery: query using a prepared statement + binary args</p>
<dl class="params"><dt>Parameters</dt><dd>
<table class="params">
<tr><td class="paramname">pool</td><td>- working pool </td></tr>
<tr><td class="paramname">handle</td><td>- the connection </td></tr>
<tr><td class="paramname">nrows</td><td>- number of rows affected. </td></tr>
<tr><td class="paramname">statement</td><td>- the prepared statement to execute </td></tr>
<tr><td class="paramname">args</td><td>- binary args to prepared statement </td></tr>
</table>
</dd>
</dl>
<dl class="section return"><dt>Returns</dt><dd>0 for success or error code </dd></dl>
</div>
</div>
<a id="a003dc5921881f3d548026ba6be8044f2"></a>
<h2 class="memtitle"><span class="permalink"><a href="#a003dc5921881f3d548026ba6be8044f2">◆ </a></span>pvbselect</h2>
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<td class="memname">int(* apr_dbd_driver_t::pvbselect) (apr_pool_t *pool, apr_dbd_t *handle, apr_dbd_results_t **res, apr_dbd_prepared_t *statement, int random, va_list args)</td>
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<p>pvbselect: select using a prepared statement + binary args</p>
<dl class="params"><dt>Parameters</dt><dd>
<table class="params">
<tr><td class="paramname">pool</td><td>- working pool </td></tr>
<tr><td class="paramname">handle</td><td>- the connection </td></tr>
<tr><td class="paramname">res</td><td>- pointer to query results. May point to NULL on entry </td></tr>
<tr><td class="paramname">statement</td><td>- the prepared statement to execute </td></tr>
<tr><td class="paramname">random</td><td>- Whether to support random-access to results </td></tr>
<tr><td class="paramname">args</td><td>- binary args to prepared statement </td></tr>
</table>
</dd>
</dl>
<dl class="section return"><dt>Returns</dt><dd>0 for success or error code </dd></dl>
</div>
</div>
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<h2 class="memtitle"><span class="permalink"><a href="#a9c68730a69a09b4ab06febb944147888">◆ </a></span>pvquery</h2>
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<td class="memname">int(* apr_dbd_driver_t::pvquery) (apr_pool_t *pool, apr_dbd_t *handle, int *nrows, apr_dbd_prepared_t *statement, va_list args)</td>
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<p>pvquery: query using a prepared statement + args</p>
<dl class="params"><dt>Parameters</dt><dd>
<table class="params">
<tr><td class="paramname">pool</td><td>- working pool </td></tr>
<tr><td class="paramname">handle</td><td>- the connection </td></tr>
<tr><td class="paramname">nrows</td><td>- number of rows affected. </td></tr>
<tr><td class="paramname">statement</td><td>- the prepared statement to execute </td></tr>
<tr><td class="paramname">args</td><td>- args to prepared statement </td></tr>
</table>
</dd>
</dl>
<dl class="section return"><dt>Returns</dt><dd>0 for success or error code </dd></dl>
</div>
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<a id="ad0b6fca421fe2e009804ab85ab64c1db"></a>
<h2 class="memtitle"><span class="permalink"><a href="#ad0b6fca421fe2e009804ab85ab64c1db">◆ </a></span>pvselect</h2>
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<td class="memname">int(* apr_dbd_driver_t::pvselect) (apr_pool_t *pool, apr_dbd_t *handle, apr_dbd_results_t **res, apr_dbd_prepared_t *statement, int random, va_list args)</td>
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<p>pvselect: select using a prepared statement + args</p>
<dl class="params"><dt>Parameters</dt><dd>
<table class="params">
<tr><td class="paramname">pool</td><td>- working pool </td></tr>
<tr><td class="paramname">handle</td><td>- the connection </td></tr>
<tr><td class="paramname">res</td><td>- pointer to query results. May point to NULL on entry </td></tr>
<tr><td class="paramname">statement</td><td>- the prepared statement to execute </td></tr>
<tr><td class="paramname">random</td><td>- Whether to support random-access to results </td></tr>
<tr><td class="paramname">args</td><td>- args to prepared statement </td></tr>
</table>
</dd>
</dl>
<dl class="section return"><dt>Returns</dt><dd>0 for success or error code </dd></dl>
</div>
</div>
<a id="ac42de1c72ac0ed642335b607d3697ce8"></a>
<h2 class="memtitle"><span class="permalink"><a href="#ac42de1c72ac0ed642335b607d3697ce8">◆ </a></span>query</h2>
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<td class="memname">int(* apr_dbd_driver_t::query) (apr_dbd_t *handle, int *nrows, const char *statement)</td>
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<p>query: execute an SQL query that doesn't return a result set</p>
<dl class="params"><dt>Parameters</dt><dd>
<table class="params">
<tr><td class="paramname">handle</td><td>- the connection </td></tr>
<tr><td class="paramname">nrows</td><td>- number of rows affected. </td></tr>
<tr><td class="paramname">statement</td><td>- the SQL statement to execute </td></tr>
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</dl>
<dl class="section return"><dt>Returns</dt><dd>0 for success or error code </dd></dl>
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<a id="a2df4f0cf267ce9129189e3bb47e4b98e"></a>
<h2 class="memtitle"><span class="permalink"><a href="#a2df4f0cf267ce9129189e3bb47e4b98e">◆ </a></span>select</h2>
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<td class="memname">int(* apr_dbd_driver_t::select) (apr_pool_t *pool, apr_dbd_t *handle, apr_dbd_results_t **res, const char *statement, int random)</td>
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<p>select: execute an SQL query that returns a result set</p>
<dl class="params"><dt>Parameters</dt><dd>
<table class="params">
<tr><td class="paramname">pool</td><td>- pool to allocate the result set </td></tr>
<tr><td class="paramname">handle</td><td>- the connection </td></tr>
<tr><td class="paramname">res</td><td>- pointer to result set pointer. May point to NULL on entry </td></tr>
<tr><td class="paramname">statement</td><td>- the SQL statement to execute </td></tr>
<tr><td class="paramname">random</td><td>- 1 to support random access to results (seek any row); 0 to support only looping through results in order (async access - faster) </td></tr>
</table>
</dd>
</dl>
<dl class="section return"><dt>Returns</dt><dd>0 for success or error code </dd></dl>
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<a id="a0c9507b1cdf1a221165e7e48e6b54404"></a>
<h2 class="memtitle"><span class="permalink"><a href="#a0c9507b1cdf1a221165e7e48e6b54404">◆ </a></span>set_dbname</h2>
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<td class="memname">int(* apr_dbd_driver_t::set_dbname) (apr_pool_t *pool, apr_dbd_t *handle, const char *<a class="el" href="structapr__dbd__driver__t.html#a5483b4c47dde6814395bebfb7959fb37">name</a>)</td>
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<p>set_dbname: select database name. May be a no-op if not supported.</p>
<dl class="params"><dt>Parameters</dt><dd>
<table class="params">
<tr><td class="paramname">pool</td><td>- working pool </td></tr>
<tr><td class="paramname">handle</td><td>- the connection </td></tr>
<tr><td class="paramname">name</td><td>- the database to select </td></tr>
</table>
</dd>
</dl>
<dl class="section return"><dt>Returns</dt><dd>0 for success or error code </dd></dl>
</div>
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<a id="a665ebdcc7ccf31b394aa25b138425331"></a>
<h2 class="memtitle"><span class="permalink"><a href="#a665ebdcc7ccf31b394aa25b138425331">◆ </a></span>start_transaction</h2>
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<td class="memname">int(* apr_dbd_driver_t::start_transaction) (apr_pool_t *pool, apr_dbd_t *handle, apr_dbd_transaction_t **trans)</td>
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<p>transaction: start a transaction. May be a no-op.</p>
<dl class="params"><dt>Parameters</dt><dd>
<table class="params">
<tr><td class="paramname">pool</td><td>- a pool to use for error messages (if any). </td></tr>
<tr><td class="paramname">handle</td><td>- the connection </td></tr>
<tr><td class="paramname">trans</td><td>- ptr to a transaction. May be null on entry </td></tr>
</table>
</dd>
</dl>
<dl class="section return"><dt>Returns</dt><dd>0 for success or error code </dd></dl>
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<a id="a00d4b7a3362ced55e9b5f0c2513aa284"></a>
<h2 class="memtitle"><span class="permalink"><a href="#a00d4b7a3362ced55e9b5f0c2513aa284">◆ </a></span>transaction_mode_get</h2>
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<td class="memname">int(* apr_dbd_driver_t::transaction_mode_get) (apr_dbd_transaction_t *trans)</td>
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<p>transaction_mode_get: get the mode of transaction</p>
<dl class="params"><dt>Parameters</dt><dd>
<table class="params">
<tr><td class="paramname">trans</td><td>- the transaction. </td></tr>
</table>
</dd>
</dl>
<dl class="section return"><dt>Returns</dt><dd>mode of transaction </dd></dl>
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<a id="a81620ae15072e50976ddca1808efbba4"></a>
<h2 class="memtitle"><span class="permalink"><a href="#a81620ae15072e50976ddca1808efbba4">◆ </a></span>transaction_mode_set</h2>
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<td class="memname">int(* apr_dbd_driver_t::transaction_mode_set) (apr_dbd_transaction_t *trans, int mode)</td>
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<p>transaction_mode_set: get the mode of transaction</p>
<dl class="params"><dt>Parameters</dt><dd>
<table class="params">
<tr><td class="paramname">trans</td><td>- the transaction. </td></tr>
<tr><td class="paramname">mode</td><td>- new mode of the transaction </td></tr>
</table>
</dd>
</dl>
<dl class="section return"><dt>Returns</dt><dd>the mode of transaction in force after the call </dd></dl>
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<hr/>The documentation for this struct was generated from the following file:<ul>
<li>include/private/<a class="el" href="apr__dbd__internal_8h_source.html">apr_dbd_internal.h</a></li>
</ul>
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