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|
<!DOCTYPE html PUBLIC "-//W3C//DTD HTML 4.01 Transitional//EN">
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<a href="#libgda-GdaConnection.description" class="shortcut">Description</a></nobr></td></tr>
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<h2><span class="refentrytitle"><a name="libgda-GdaConnection.top_of_page"></a>GdaConnection</span></h2>
<p>GdaConnection — Management of connections to data sources</p>
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</tr></table></div>
<div class="refsynopsisdiv">
<a name="libgda-GdaConnection.synopsis"></a><h2>Synopsis</h2>
<pre class="synopsis">
<a class="link" href="libgda-GdaConnection.html#GdaConnectionPrivate" title="GdaConnectionPrivate">GdaConnectionPrivate</a>;
<a class="link" href="libgda-GdaConnection.html#GdaServerProvider" title="GdaServerProvider">GdaServerProvider</a>;
<a class="link" href="libgda-GdaConnection.html#GdaClient" title="GdaClient">GdaClient</a>;
enum <a class="link" href="libgda-GdaConnection.html#GdaConnectionOptions" title="enum GdaConnectionOptions">GdaConnectionOptions</a>;
GdaConnection* <a class="link" href="libgda-GdaConnection.html#gda-connection-new" title="gda_connection_new ()">gda_connection_new</a> (<a class="link" href="libgda-GdaConnection.html#GdaClient" title="GdaClient">GdaClient</a> *client,
<a class="link" href="libgda-GdaConnection.html#GdaServerProvider" title="GdaServerProvider">GdaServerProvider</a> *provider,
const gchar *dsn,
const gchar *username,
const gchar *password,
<a class="link" href="libgda-GdaConnection.html#GdaConnectionOptions" title="enum GdaConnectionOptions">GdaConnectionOptions</a> options);
gboolean <a class="link" href="libgda-GdaConnection.html#gda-connection-close" title="gda_connection_close ()">gda_connection_close</a> (GdaConnection *cnc);
gboolean <a class="link" href="libgda-GdaConnection.html#gda-connection-is-open" title="gda_connection_is_open ()">gda_connection_is_open</a> (GdaConnection *cnc);
<a class="link" href="libgda-GdaConnection.html#GdaClient" title="GdaClient">GdaClient</a>* <a class="link" href="libgda-GdaConnection.html#gda-connection-get-client" title="gda_connection_get_client ()">gda_connection_get_client</a> (GdaConnection *cnc);
void <a class="link" href="libgda-GdaConnection.html#gda-connection-set-client" title="gda_connection_set_client ()">gda_connection_set_client</a> (GdaConnection *cnc,
<a class="link" href="libgda-GdaConnection.html#GdaClient" title="GdaClient">GdaClient</a> *client);
<a class="link" href="libgda-GdaConnection.html#GdaConnectionOptions" title="enum GdaConnectionOptions">GdaConnectionOptions</a> <a class="link" href="libgda-GdaConnection.html#gda-connection-get-options" title="gda_connection_get_options ()">gda_connection_get_options</a> (GdaConnection *cnc);
const gchar* <a class="link" href="libgda-GdaConnection.html#gda-connection-get-server-version" title="gda_connection_get_server_version ()">gda_connection_get_server_version</a> (GdaConnection *cnc);
const gchar* <a class="link" href="libgda-GdaConnection.html#gda-connection-get-database" title="gda_connection_get_database ()">gda_connection_get_database</a> (GdaConnection *cnc);
const gchar* <a class="link" href="libgda-GdaConnection.html#gda-connection-get-dsn" title="gda_connection_get_dsn ()">gda_connection_get_dsn</a> (GdaConnection *cnc);
const gchar* <a class="link" href="libgda-GdaConnection.html#gda-connection-get-cnc-string" title="gda_connection_get_cnc_string ()">gda_connection_get_cnc_string</a> (GdaConnection *cnc);
const gchar* <a class="link" href="libgda-GdaConnection.html#gda-connection-get-provider" title="gda_connection_get_provider ()">gda_connection_get_provider</a> (GdaConnection *cnc);
const gchar* <a class="link" href="libgda-GdaConnection.html#gda-connection-get-username" title="gda_connection_get_username ()">gda_connection_get_username</a> (GdaConnection *cnc);
const gchar* <a class="link" href="libgda-GdaConnection.html#gda-connection-get-password" title="gda_connection_get_password ()">gda_connection_get_password</a> (GdaConnection *cnc);
void <a class="link" href="libgda-GdaConnection.html#gda-connection-add-error" title="gda_connection_add_error ()">gda_connection_add_error</a> (GdaConnection *cnc,
GdaError *error);
void <a class="link" href="libgda-GdaConnection.html#gda-connection-add-error-string" title="gda_connection_add_error_string ()">gda_connection_add_error_string</a> (GdaConnection *cnc,
const gchar *str,
...);
void <a class="link" href="libgda-GdaConnection.html#gda-connection-add-error-list" title="gda_connection_add_error_list ()">gda_connection_add_error_list</a> (GdaConnection *cnc,
GList *error_list);
gboolean <a class="link" href="libgda-GdaConnection.html#gda-connection-change-database" title="gda_connection_change_database ()">gda_connection_change_database</a> (GdaConnection *cnc,
const gchar *name);
gboolean <a class="link" href="libgda-GdaConnection.html#gda-connection-create-database" title="gda_connection_create_database ()">gda_connection_create_database</a> (GdaConnection *cnc,
const gchar *name);
gboolean <a class="link" href="libgda-GdaConnection.html#gda-connection-drop-database" title="gda_connection_drop_database ()">gda_connection_drop_database</a> (GdaConnection *cnc,
const gchar *name);
gboolean <a class="link" href="libgda-GdaConnection.html#gda-connection-create-table" title="gda_connection_create_table ()">gda_connection_create_table</a> (GdaConnection *cnc,
const gchar *table_name,
const <a class="link" href="libgda-gda-field.html#GdaFieldAttributes" title="GdaFieldAttributes">GdaFieldAttributes</a> *attributes[]);
gboolean <a class="link" href="libgda-GdaConnection.html#gda-connection-drop-table" title="gda_connection_drop_table ()">gda_connection_drop_table</a> (GdaConnection *cnc,
const gchar *table_name);
GList* <a class="link" href="libgda-GdaConnection.html#gda-connection-execute-command" title="gda_connection_execute_command ()">gda_connection_execute_command</a> (GdaConnection *cnc,
<a class="link" href="libgda-gda-command.html#GdaCommand" title="GdaCommand">GdaCommand</a> *cmd,
<a class="link" href="libgda-gda-parameter.html#GdaParameterList" title="GdaParameterList">GdaParameterList</a> *params);
gchar* <a class="link" href="libgda-GdaConnection.html#gda-connection-get-last-insert-id" title="gda_connection_get_last_insert_id ()">gda_connection_get_last_insert_id</a> (GdaConnection *cnc,
<a class="link" href="libgda-gda-row.html#GdaDataModel" title="GdaDataModel">GdaDataModel</a> *recset);
<a class="link" href="libgda-gda-row.html#GdaDataModel" title="GdaDataModel">GdaDataModel</a>* <a class="link" href="libgda-GdaConnection.html#gda-connection-execute-single-command" title="gda_connection_execute_single_command ()">gda_connection_execute_single_command</a>
(GdaConnection *cnc,
<a class="link" href="libgda-gda-command.html#GdaCommand" title="GdaCommand">GdaCommand</a> *cmd,
<a class="link" href="libgda-gda-parameter.html#GdaParameterList" title="GdaParameterList">GdaParameterList</a> *params);
gint <a class="link" href="libgda-GdaConnection.html#gda-connection-execute-non-query" title="gda_connection_execute_non_query ()">gda_connection_execute_non_query</a> (GdaConnection *cnc,
<a class="link" href="libgda-gda-command.html#GdaCommand" title="GdaCommand">GdaCommand</a> *cmd,
<a class="link" href="libgda-gda-parameter.html#GdaParameterList" title="GdaParameterList">GdaParameterList</a> *params);
gboolean <a class="link" href="libgda-GdaConnection.html#gda-connection-begin-transaction" title="gda_connection_begin_transaction ()">gda_connection_begin_transaction</a> (GdaConnection *cnc,
GdaTransaction *xaction);
gboolean <a class="link" href="libgda-GdaConnection.html#gda-connection-commit-transaction" title="gda_connection_commit_transaction ()">gda_connection_commit_transaction</a> (GdaConnection *cnc,
GdaTransaction *xaction);
gboolean <a class="link" href="libgda-GdaConnection.html#gda-connection-rollback-transaction" title="gda_connection_rollback_transaction ()">gda_connection_rollback_transaction</a> (GdaConnection *cnc,
GdaTransaction *xaction);
gboolean <a class="link" href="libgda-GdaConnection.html#gda-connection-create-blob" title="gda_connection_create_blob ()">gda_connection_create_blob</a> (GdaConnection *cnc,
<a class="link" href="libgda-gda-blob.html#GdaBlob" title="GdaBlob">GdaBlob</a> *blob);
const GList* <a class="link" href="libgda-GdaConnection.html#gda-connection-get-errors" title="gda_connection_get_errors ()">gda_connection_get_errors</a> (GdaConnection *cnc);
enum <a class="link" href="libgda-GdaConnection.html#GdaConnectionFeature" title="enum GdaConnectionFeature">GdaConnectionFeature</a>;
gboolean <a class="link" href="libgda-GdaConnection.html#gda-connection-supports" title="gda_connection_supports ()">gda_connection_supports</a> (GdaConnection *cnc,
<a class="link" href="libgda-GdaConnection.html#GdaConnectionFeature" title="enum GdaConnectionFeature">GdaConnectionFeature</a> feature);
enum <a class="link" href="libgda-GdaConnection.html#GdaConnectionSchema" title="enum GdaConnectionSchema">GdaConnectionSchema</a>;
<a class="link" href="libgda-gda-row.html#GdaDataModel" title="GdaDataModel">GdaDataModel</a>* <a class="link" href="libgda-GdaConnection.html#gda-connection-get-schema" title="gda_connection_get_schema ()">gda_connection_get_schema</a> (GdaConnection *cnc,
<a class="link" href="libgda-GdaConnection.html#GdaConnectionSchema" title="enum GdaConnectionSchema">GdaConnectionSchema</a> schema,
<a class="link" href="libgda-gda-parameter.html#GdaParameterList" title="GdaParameterList">GdaParameterList</a> *params);
</pre>
</div>
<div class="refsect1" lang="en">
<a name="libgda-GdaConnection.description"></a><h2>Description</h2>
<p>
The <span class="type">GdaConnection</span> class offers access to all operations involving an
opened connection to a database. <span class="type">GdaConnection</span> objects are obtained
via the <a class="link" href="libgda-GdaConnection.html#GdaClient" title="GdaClient"><span class="type">GdaClient</span></a> class.
</p>
<p>
Once obtained, applications can use <span class="type">GdaConnection</span> to execute commands,
run transactions, and get information about all objects stored in the
underlying database.
</p>
</div>
<div class="refsect1" lang="en">
<a name="libgda-GdaConnection.details"></a><h2>Details</h2>
<div class="refsect2" lang="en">
<a name="GdaConnectionPrivate"></a><h3>GdaConnectionPrivate</h3>
<pre class="programlisting">typedef struct _GdaConnectionPrivate GdaConnectionPrivate;</pre>
<p>
</p>
</div>
<hr>
<div class="refsect2" lang="en">
<a name="GdaServerProvider"></a><h3>GdaServerProvider</h3>
<pre class="programlisting">typedef struct {
GObject object;
GdaServerProviderPrivate *priv;
} GdaServerProvider;
</pre>
<p>
</p>
</div>
<hr>
<div class="refsect2" lang="en">
<a name="GdaClient"></a><h3>GdaClient</h3>
<pre class="programlisting">typedef struct {
GObject object;
GdaClientPrivate *priv;
} GdaClient;
</pre>
<p>
</p>
</div>
<hr>
<div class="refsect2" lang="en">
<a name="GdaConnectionOptions"></a><h3>enum GdaConnectionOptions</h3>
<pre class="programlisting">typedef enum {
GDA_CONNECTION_OPTIONS_READ_ONLY = 1 << 0,
GDA_CONNECTION_OPTIONS_DONT_SHARE = 2 << 0
} GdaConnectionOptions;
</pre>
<p>
</p>
</div>
<hr>
<div class="refsect2" lang="en">
<a name="gda-connection-new"></a><h3>gda_connection_new ()</h3>
<pre class="programlisting">GdaConnection* gda_connection_new (<a class="link" href="libgda-GdaConnection.html#GdaClient" title="GdaClient">GdaClient</a> *client,
<a class="link" href="libgda-GdaConnection.html#GdaServerProvider" title="GdaServerProvider">GdaServerProvider</a> *provider,
const gchar *dsn,
const gchar *username,
const gchar *password,
<a class="link" href="libgda-GdaConnection.html#GdaConnectionOptions" title="enum GdaConnectionOptions">GdaConnectionOptions</a> options);</pre>
<p>
This function creates a new <span class="type">GdaConnection</span> object. It is not
intended to be used directly by applications (use
<a class="link" href="libgda-GdaClient.html#gda-client-open-connection" title="gda_client_open_connection ()"><span class="type">gda_client_open_connection</span></a> instead).</p>
<p>
</p>
<div class="variablelist"><table border="0">
<col align="left" valign="top">
<tbody>
<tr>
<td><p><span class="term"><em class="parameter"><code>client</code></em> :</span></p></td>
<td> a <a class="link" href="libgda-GdaConnection.html#GdaClient" title="GdaClient"><span class="type">GdaClient</span></a> object.
</td>
</tr>
<tr>
<td><p><span class="term"><em class="parameter"><code>provider</code></em> :</span></p></td>
<td> a <a class="link" href="libgda-GdaConnection.html#GdaServerProvider" title="GdaServerProvider"><span class="type">GdaServerProvider</span></a> object.
</td>
</tr>
<tr>
<td><p><span class="term"><em class="parameter"><code>dsn</code></em> :</span></p></td>
<td> GDA data source to connect to.
</td>
</tr>
<tr>
<td><p><span class="term"><em class="parameter"><code>username</code></em> :</span></p></td>
<td> user name to use to connect.
</td>
</tr>
<tr>
<td><p><span class="term"><em class="parameter"><code>password</code></em> :</span></p></td>
<td> password for <em class="parameter"><code>username</code></em>.
</td>
</tr>
<tr>
<td><p><span class="term"><em class="parameter"><code>options</code></em> :</span></p></td>
<td> options for the connection.
</td>
</tr>
<tr>
<td><p><span class="term"><span class="emphasis"><em>Returns</em></span> :</span></p></td>
<td> a newly allocated <span class="type">GdaConnection</span> object.
</td>
</tr>
</tbody>
</table></div>
</div>
<hr>
<div class="refsect2" lang="en">
<a name="gda-connection-close"></a><h3>gda_connection_close ()</h3>
<pre class="programlisting">gboolean gda_connection_close (GdaConnection *cnc);</pre>
<p>
Closes the connection to the underlying data source. After calling this
function, you should not use anymore the <span class="type">GdaConnection</span> object, since
it may have been destroyed.</p>
<p>
</p>
<div class="variablelist"><table border="0">
<col align="left" valign="top">
<tbody>
<tr>
<td><p><span class="term"><em class="parameter"><code>cnc</code></em> :</span></p></td>
<td> a <span class="type">GdaConnection</span> object.
</td>
</tr>
<tr>
<td><p><span class="term"><span class="emphasis"><em>Returns</em></span> :</span></p></td>
<td> <code class="literal">TRUE</code> if successful, <code class="literal">FALSE</code> otherwise.
</td>
</tr>
</tbody>
</table></div>
</div>
<hr>
<div class="refsect2" lang="en">
<a name="gda-connection-is-open"></a><h3>gda_connection_is_open ()</h3>
<pre class="programlisting">gboolean gda_connection_is_open (GdaConnection *cnc);</pre>
<p>
Checks whether a connection is open or not.</p>
<p>
</p>
<div class="variablelist"><table border="0">
<col align="left" valign="top">
<tbody>
<tr>
<td><p><span class="term"><em class="parameter"><code>cnc</code></em> :</span></p></td>
<td> a <span class="type">GdaConnection</span> object.
</td>
</tr>
<tr>
<td><p><span class="term"><span class="emphasis"><em>Returns</em></span> :</span></p></td>
<td> <code class="literal">TRUE</code> if the connection is open, <code class="literal">FALSE</code> if it's not.
</td>
</tr>
</tbody>
</table></div>
</div>
<hr>
<div class="refsect2" lang="en">
<a name="gda-connection-get-client"></a><h3>gda_connection_get_client ()</h3>
<pre class="programlisting"><a class="link" href="libgda-GdaConnection.html#GdaClient" title="GdaClient">GdaClient</a>* gda_connection_get_client (GdaConnection *cnc);</pre>
<p>
Gets the <a class="link" href="libgda-GdaConnection.html#GdaClient" title="GdaClient"><span class="type">GdaClient</span></a> object associated with a connection. This
is always the client that created the connection, as returned
by <a class="link" href="libgda-GdaClient.html#gda-client-open-connection" title="gda_client_open_connection ()"><span class="type">gda_client_open_connection</span></a>.</p>
<p>
</p>
<div class="variablelist"><table border="0">
<col align="left" valign="top">
<tbody>
<tr>
<td><p><span class="term"><em class="parameter"><code>cnc</code></em> :</span></p></td>
<td> a <span class="type">GdaConnection</span> object.
</td>
</tr>
<tr>
<td><p><span class="term"><span class="emphasis"><em>Returns</em></span> :</span></p></td>
<td> the client to which the connection belongs to.
</td>
</tr>
</tbody>
</table></div>
</div>
<hr>
<div class="refsect2" lang="en">
<a name="gda-connection-set-client"></a><h3>gda_connection_set_client ()</h3>
<pre class="programlisting">void gda_connection_set_client (GdaConnection *cnc,
<a class="link" href="libgda-GdaConnection.html#GdaClient" title="GdaClient">GdaClient</a> *client);</pre>
<p>
Associates a <a class="link" href="libgda-GdaConnection.html#GdaClient" title="GdaClient"><span class="type">GdaClient</span></a> with this connection. This function is
not intended to be called by applications.</p>
<p>
</p>
<div class="variablelist"><table border="0">
<col align="left" valign="top">
<tbody>
<tr>
<td><p><span class="term"><em class="parameter"><code>cnc</code></em> :</span></p></td>
<td> a <span class="type">GdaConnection</span> object.
</td>
</tr>
<tr>
<td><p><span class="term"><em class="parameter"><code>client</code></em> :</span></p></td>
<td> a <a class="link" href="libgda-GdaConnection.html#GdaClient" title="GdaClient"><span class="type">GdaClient</span></a> object.
</td>
</tr>
</tbody>
</table></div>
</div>
<hr>
<div class="refsect2" lang="en">
<a name="gda-connection-get-options"></a><h3>gda_connection_get_options ()</h3>
<pre class="programlisting"><a class="link" href="libgda-GdaConnection.html#GdaConnectionOptions" title="enum GdaConnectionOptions">GdaConnectionOptions</a> gda_connection_get_options (GdaConnection *cnc);</pre>
<p>
Gets the <a class="link" href="libgda-GdaConnection.html#GdaConnectionOptions" title="enum GdaConnectionOptions"><span class="type">GdaConnectionOptions</span></a> used to open this connection.</p>
<p>
</p>
<div class="variablelist"><table border="0">
<col align="left" valign="top">
<tbody>
<tr>
<td><p><span class="term"><em class="parameter"><code>cnc</code></em> :</span></p></td>
<td> a <span class="type">GdaConnection</span> object.
</td>
</tr>
<tr>
<td><p><span class="term"><span class="emphasis"><em>Returns</em></span> :</span></p></td>
<td> the connection options.
</td>
</tr>
</tbody>
</table></div>
</div>
<hr>
<div class="refsect2" lang="en">
<a name="gda-connection-get-server-version"></a><h3>gda_connection_get_server_version ()</h3>
<pre class="programlisting">const gchar* gda_connection_get_server_version (GdaConnection *cnc);</pre>
<p>
Gets the version string of the underlying database server.</p>
<p>
</p>
<div class="variablelist"><table border="0">
<col align="left" valign="top">
<tbody>
<tr>
<td><p><span class="term"><em class="parameter"><code>cnc</code></em> :</span></p></td>
<td> a <span class="type">GdaConnection</span> object.
</td>
</tr>
<tr>
<td><p><span class="term"><span class="emphasis"><em>Returns</em></span> :</span></p></td>
<td> the server version string.
</td>
</tr>
</tbody>
</table></div>
</div>
<hr>
<div class="refsect2" lang="en">
<a name="gda-connection-get-database"></a><h3>gda_connection_get_database ()</h3>
<pre class="programlisting">const gchar* gda_connection_get_database (GdaConnection *cnc);</pre>
<p>
Gets the name of the currently active database in the given
<em class="parameter"><code>GdaConnection</code></em>.</p>
<p>
</p>
<div class="variablelist"><table border="0">
<col align="left" valign="top">
<tbody>
<tr>
<td><p><span class="term"><em class="parameter"><code>cnc</code></em> :</span></p></td>
<td> A <span class="type">GdaConnection</span> object.
</td>
</tr>
<tr>
<td><p><span class="term"><span class="emphasis"><em>Returns</em></span> :</span></p></td>
<td> the name of the current database.
</td>
</tr>
</tbody>
</table></div>
</div>
<hr>
<div class="refsect2" lang="en">
<a name="gda-connection-get-dsn"></a><h3>gda_connection_get_dsn ()</h3>
<pre class="programlisting">const gchar* gda_connection_get_dsn (GdaConnection *cnc);</pre>
<p>
</p>
<p>
</p>
<div class="variablelist"><table border="0">
<col align="left" valign="top">
<tbody>
<tr>
<td><p><span class="term"><em class="parameter"><code>cnc</code></em> :</span></p></td>
<td> a <span class="type">GdaConnection</span> object
</td>
</tr>
<tr>
<td><p><span class="term"><span class="emphasis"><em>Returns</em></span> :</span></p></td>
<td>the data source name the connection object is connected
to.
</td>
</tr>
</tbody>
</table></div>
</div>
<hr>
<div class="refsect2" lang="en">
<a name="gda-connection-get-cnc-string"></a><h3>gda_connection_get_cnc_string ()</h3>
<pre class="programlisting">const gchar* gda_connection_get_cnc_string (GdaConnection *cnc);</pre>
<p>
Gets the connection string used to open this connection.
</p>
<p>
The connection string is the string sent over to the underlying
database provider, which describes the parameters to be used
to open a connection on the underlying data source.</p>
<p>
</p>
<div class="variablelist"><table border="0">
<col align="left" valign="top">
<tbody>
<tr>
<td><p><span class="term"><em class="parameter"><code>cnc</code></em> :</span></p></td>
<td> a <span class="type">GdaConnection</span> object.
</td>
</tr>
<tr>
<td><p><span class="term"><span class="emphasis"><em>Returns</em></span> :</span></p></td>
<td> the connection string used when opening the connection.
</td>
</tr>
</tbody>
</table></div>
</div>
<hr>
<div class="refsect2" lang="en">
<a name="gda-connection-get-provider"></a><h3>gda_connection_get_provider ()</h3>
<pre class="programlisting">const gchar* gda_connection_get_provider (GdaConnection *cnc);</pre>
<p>
Gets the provider id that this connection is connected to.</p>
<p>
</p>
<div class="variablelist"><table border="0">
<col align="left" valign="top">
<tbody>
<tr>
<td><p><span class="term"><em class="parameter"><code>cnc</code></em> :</span></p></td>
<td> a <span class="type">GdaConnection</span> object.
</td>
</tr>
<tr>
<td><p><span class="term"><span class="emphasis"><em>Returns</em></span> :</span></p></td>
<td> the provider ID used to open this connection.
</td>
</tr>
</tbody>
</table></div>
</div>
<hr>
<div class="refsect2" lang="en">
<a name="gda-connection-get-username"></a><h3>gda_connection_get_username ()</h3>
<pre class="programlisting">const gchar* gda_connection_get_username (GdaConnection *cnc);</pre>
<p>
Gets the user name used to open this connection.</p>
<p>
</p>
<div class="variablelist"><table border="0">
<col align="left" valign="top">
<tbody>
<tr>
<td><p><span class="term"><em class="parameter"><code>cnc</code></em> :</span></p></td>
<td> a <span class="type">GdaConnection</span> object.
</td>
</tr>
<tr>
<td><p><span class="term"><span class="emphasis"><em>Returns</em></span> :</span></p></td>
<td> the user name.
</td>
</tr>
</tbody>
</table></div>
</div>
<hr>
<div class="refsect2" lang="en">
<a name="gda-connection-get-password"></a><h3>gda_connection_get_password ()</h3>
<pre class="programlisting">const gchar* gda_connection_get_password (GdaConnection *cnc);</pre>
<p>
Gets the password used to open this connection.</p>
<p>
</p>
<div class="variablelist"><table border="0">
<col align="left" valign="top">
<tbody>
<tr>
<td><p><span class="term"><em class="parameter"><code>cnc</code></em> :</span></p></td>
<td> a <span class="type">GdaConnection</span> object.
</td>
</tr>
<tr>
<td><p><span class="term"><span class="emphasis"><em>Returns</em></span> :</span></p></td>
<td> the password.
</td>
</tr>
</tbody>
</table></div>
</div>
<hr>
<div class="refsect2" lang="en">
<a name="gda-connection-add-error"></a><h3>gda_connection_add_error ()</h3>
<pre class="programlisting">void gda_connection_add_error (GdaConnection *cnc,
GdaError *error);</pre>
<p>
Adds an error to the given connection. This function is usually
called by providers, to inform clients of errors that happened
during some operation.
</p>
<p>
As soon as a provider (or a client, it does not matter) calls this
function, the connection object (and the associated <a class="link" href="libgda-GdaConnection.html#GdaClient" title="GdaClient"><span class="type">GdaClient</span></a> object)
emits the "error" signal, to which clients can connect to be
informed of errors.</p>
<p>
</p>
<div class="variablelist"><table border="0">
<col align="left" valign="top">
<tbody>
<tr>
<td><p><span class="term"><em class="parameter"><code>cnc</code></em> :</span></p></td>
<td> a <span class="type">GdaConnection</span> object.
</td>
</tr>
<tr>
<td><p><span class="term"><em class="parameter"><code>error</code></em> :</span></p></td>
<td> is stored internally, so you don't need to unref it.
</td>
</tr>
</tbody>
</table></div>
</div>
<hr>
<div class="refsect2" lang="en">
<a name="gda-connection-add-error-string"></a><h3>gda_connection_add_error_string ()</h3>
<pre class="programlisting">void gda_connection_add_error_string (GdaConnection *cnc,
const gchar *str,
...);</pre>
<p>
Adds a new error to the given connection object. This is just a convenience
function that simply creates a <span class="type">GdaError</span> and then calls
<span class="type">gda_server_connection_add_error</span>.</p>
<p>
</p>
<div class="variablelist"><table border="0">
<col align="left" valign="top">
<tbody>
<tr>
<td><p><span class="term"><em class="parameter"><code>cnc</code></em> :</span></p></td>
<td> a <span class="type">GdaServerConnection</span> object.
</td>
</tr>
<tr>
<td><p><span class="term"><em class="parameter"><code>str</code></em> :</span></p></td>
<td> a format string (see the printf(3) documentation).
</td>
</tr>
<tr>
<td><p><span class="term"><em class="parameter"><code>...</code></em> :</span></p></td>
<td> the arguments to insert in the error message.
</td>
</tr>
</tbody>
</table></div>
</div>
<hr>
<div class="refsect2" lang="en">
<a name="gda-connection-add-error-list"></a><h3>gda_connection_add_error_list ()</h3>
<pre class="programlisting">void gda_connection_add_error_list (GdaConnection *cnc,
GList *error_list);</pre>
<p>
This is just another convenience function which lets you add
a list of <span class="type">GdaError</span>'s to the given connection. As with
<a class="link" href="libgda-GdaConnection.html#gda-connection-add-error" title="gda_connection_add_error ()"><span class="type">gda_connection_add_error</span></a> and <a class="link" href="libgda-GdaConnection.html#gda-connection-add-error-string" title="gda_connection_add_error_string ()"><span class="type">gda_connection_add_error_string</span></a>,
this function makes the connection object emit the "error"
signal. The only difference is that, instead of a notification
for each error, this function only does one notification for
the whole list of errors.
</p>
<p>
<em class="parameter"><code>error_list</code></em> is copied to an internal list and freed.</p>
<p>
</p>
<div class="variablelist"><table border="0">
<col align="left" valign="top">
<tbody>
<tr>
<td><p><span class="term"><em class="parameter"><code>cnc</code></em> :</span></p></td>
<td> a <span class="type">GdaConnection</span> object.
</td>
</tr>
<tr>
<td><p><span class="term"><em class="parameter"><code>error_list</code></em> :</span></p></td>
<td> a list of <span class="type">GdaError</span>.
</td>
</tr>
</tbody>
</table></div>
</div>
<hr>
<div class="refsect2" lang="en">
<a name="gda-connection-change-database"></a><h3>gda_connection_change_database ()</h3>
<pre class="programlisting">gboolean gda_connection_change_database (GdaConnection *cnc,
const gchar *name);</pre>
<p>
Changes the current database for the given connection. This operation
is not available in all providers.</p>
<p>
</p>
<div class="variablelist"><table border="0">
<col align="left" valign="top">
<tbody>
<tr>
<td><p><span class="term"><em class="parameter"><code>cnc</code></em> :</span></p></td>
<td> a <span class="type">GdaConnection</span> object.
</td>
</tr>
<tr>
<td><p><span class="term"><em class="parameter"><code>name</code></em> :</span></p></td>
<td> name of database to switch to.
</td>
</tr>
<tr>
<td><p><span class="term"><span class="emphasis"><em>Returns</em></span> :</span></p></td>
<td> <code class="literal">TRUE</code> if successful, <code class="literal">FALSE</code> otherwise.
</td>
</tr>
</tbody>
</table></div>
</div>
<hr>
<div class="refsect2" lang="en">
<a name="gda-connection-create-database"></a><h3>gda_connection_create_database ()</h3>
<pre class="programlisting">gboolean gda_connection_create_database (GdaConnection *cnc,
const gchar *name);</pre>
<p>
Creates a new database named <em class="parameter"><code>name</code></em> on the given connection.</p>
<p>
</p>
<div class="variablelist"><table border="0">
<col align="left" valign="top">
<tbody>
<tr>
<td><p><span class="term"><em class="parameter"><code>cnc</code></em> :</span></p></td>
<td> a <span class="type">GdaConnection</span> object.
</td>
</tr>
<tr>
<td><p><span class="term"><em class="parameter"><code>name</code></em> :</span></p></td>
<td> database name.
</td>
</tr>
<tr>
<td><p><span class="term"><span class="emphasis"><em>Returns</em></span> :</span></p></td>
<td> <code class="literal">TRUE</code> if successful, <code class="literal">FALSE</code> otherwise.
</td>
</tr>
</tbody>
</table></div>
</div>
<hr>
<div class="refsect2" lang="en">
<a name="gda-connection-drop-database"></a><h3>gda_connection_drop_database ()</h3>
<pre class="programlisting">gboolean gda_connection_drop_database (GdaConnection *cnc,
const gchar *name);</pre>
<p>
Drops a database from the given connection.</p>
<p>
</p>
<div class="variablelist"><table border="0">
<col align="left" valign="top">
<tbody>
<tr>
<td><p><span class="term"><em class="parameter"><code>cnc</code></em> :</span></p></td>
<td> a <span class="type">GdaConnection</span> object.
</td>
</tr>
<tr>
<td><p><span class="term"><em class="parameter"><code>name</code></em> :</span></p></td>
<td> database name.
</td>
</tr>
<tr>
<td><p><span class="term"><span class="emphasis"><em>Returns</em></span> :</span></p></td>
<td> <code class="literal">TRUE</code> if successful, <code class="literal">FALSE</code> otherwise.
</td>
</tr>
</tbody>
</table></div>
</div>
<hr>
<div class="refsect2" lang="en">
<a name="gda-connection-create-table"></a><h3>gda_connection_create_table ()</h3>
<pre class="programlisting">gboolean gda_connection_create_table (GdaConnection *cnc,
const gchar *table_name,
const <a class="link" href="libgda-gda-field.html#GdaFieldAttributes" title="GdaFieldAttributes">GdaFieldAttributes</a> *attributes[]);</pre>
<p>
Creates a table on the given connection from the specified set of fields.</p>
<p>
</p>
<div class="variablelist"><table border="0">
<col align="left" valign="top">
<tbody>
<tr>
<td><p><span class="term"><em class="parameter"><code>cnc</code></em> :</span></p></td>
<td> a <span class="type">GdaConnection</span> object.
</td>
</tr>
<tr>
<td><p><span class="term"><em class="parameter"><code>table_name</code></em> :</span></p></td>
<td> name of the table to be created.
</td>
</tr>
<tr>
<td><p><span class="term"><em class="parameter"><code>attributes</code></em> :</span></p></td>
<td> description of all fields for the new table.
</td>
</tr>
<tr>
<td><p><span class="term"><span class="emphasis"><em>Returns</em></span> :</span></p></td>
<td> <code class="literal">TRUE</code> if successful, <code class="literal">FALSE</code> otherwise.
</td>
</tr>
</tbody>
</table></div>
</div>
<hr>
<div class="refsect2" lang="en">
<a name="gda-connection-drop-table"></a><h3>gda_connection_drop_table ()</h3>
<pre class="programlisting">gboolean gda_connection_drop_table (GdaConnection *cnc,
const gchar *table_name);</pre>
<p>
Drops a table from the database.</p>
<p>
</p>
<div class="variablelist"><table border="0">
<col align="left" valign="top">
<tbody>
<tr>
<td><p><span class="term"><em class="parameter"><code>cnc</code></em> :</span></p></td>
<td> a <span class="type">GdaConnection</span> object.
</td>
</tr>
<tr>
<td><p><span class="term"><em class="parameter"><code>table_name</code></em> :</span></p></td>
<td> name of the table to be removed
</td>
</tr>
<tr>
<td><p><span class="term"><span class="emphasis"><em>Returns</em></span> :</span></p></td>
<td> <code class="literal">TRUE</code> if successful, <code class="literal">FALSE</code> otherwise.
</td>
</tr>
</tbody>
</table></div>
</div>
<hr>
<div class="refsect2" lang="en">
<a name="gda-connection-execute-command"></a><h3>gda_connection_execute_command ()</h3>
<pre class="programlisting">GList* gda_connection_execute_command (GdaConnection *cnc,
<a class="link" href="libgda-gda-command.html#GdaCommand" title="GdaCommand">GdaCommand</a> *cmd,
<a class="link" href="libgda-gda-parameter.html#GdaParameterList" title="GdaParameterList">GdaParameterList</a> *params);</pre>
<p>
Executes a command on the underlying data source.
</p>
<p>
This function provides the way to send several commands
at once to the data source being accessed by the given
<span class="type">GdaConnection</span> object. The <a class="link" href="libgda-gda-command.html#GdaCommand" title="GdaCommand"><span class="type">GdaCommand</span></a> specified can contain
a list of commands in its "text" property (usually a set
of SQL commands separated by ';').
</p>
<p>
The return value is a GList of <a class="link" href="libgda-gda-row.html#GdaDataModel" title="GdaDataModel"><span class="type">GdaDataModel</span></a>'s, which you
are responsible to free when not needed anymore.</p>
<p>
</p>
<div class="variablelist"><table border="0">
<col align="left" valign="top">
<tbody>
<tr>
<td><p><span class="term"><em class="parameter"><code>cnc</code></em> :</span></p></td>
<td> a <span class="type">GdaConnection</span> object.
</td>
</tr>
<tr>
<td><p><span class="term"><em class="parameter"><code>cmd</code></em> :</span></p></td>
<td> a <a class="link" href="libgda-gda-command.html#GdaCommand" title="GdaCommand"><span class="type">GdaCommand</span></a>.
</td>
</tr>
<tr>
<td><p><span class="term"><em class="parameter"><code>params</code></em> :</span></p></td>
<td> parameter list.
</td>
</tr>
<tr>
<td><p><span class="term"><span class="emphasis"><em>Returns</em></span> :</span></p></td>
<td> a list of <a class="link" href="libgda-gda-row.html#GdaDataModel" title="GdaDataModel"><span class="type">GdaDataModel</span></a>'s, as returned by the underlying
provider.
</td>
</tr>
</tbody>
</table></div>
</div>
<hr>
<div class="refsect2" lang="en">
<a name="gda-connection-get-last-insert-id"></a><h3>gda_connection_get_last_insert_id ()</h3>
<pre class="programlisting">gchar* gda_connection_get_last_insert_id (GdaConnection *cnc,
<a class="link" href="libgda-gda-row.html#GdaDataModel" title="GdaDataModel">GdaDataModel</a> *recset);</pre>
<p>
Retrieve from the given <span class="type">GdaConnection</span> the ID of the last inserted row.
A connection must be specified, and, optionally, a result set. If not NULL,
the underlying provider should try to get the last insert ID for the given result set.</p>
<p>
</p>
<div class="variablelist"><table border="0">
<col align="left" valign="top">
<tbody>
<tr>
<td><p><span class="term"><em class="parameter"><code>cnc</code></em> :</span></p></td>
<td> a <span class="type">GdaConnection</span> object.
</td>
</tr>
<tr>
<td><p><span class="term"><em class="parameter"><code>recset</code></em> :</span></p></td>
<td> recordset.
</td>
</tr>
<tr>
<td><p><span class="term"><span class="emphasis"><em>Returns</em></span> :</span></p></td>
<td> a string representing the ID of the last inserted row, or NULL
if an error occurred or no row has been inserted. It is the caller's
reponsibility to free the returned string.
</td>
</tr>
</tbody>
</table></div>
</div>
<hr>
<div class="refsect2" lang="en">
<a name="gda-connection-execute-single-command"></a><h3>gda_connection_execute_single_command ()</h3>
<pre class="programlisting"><a class="link" href="libgda-gda-row.html#GdaDataModel" title="GdaDataModel">GdaDataModel</a>* gda_connection_execute_single_command
(GdaConnection *cnc,
<a class="link" href="libgda-gda-command.html#GdaCommand" title="GdaCommand">GdaCommand</a> *cmd,
<a class="link" href="libgda-gda-parameter.html#GdaParameterList" title="GdaParameterList">GdaParameterList</a> *params);</pre>
<p>
Executes a single command on the given connection.
</p>
<p>
This function lets you retrieve a simple data model from
the underlying difference, instead of having to retrieve
a list of them, as is the case with <a class="link" href="libgda-GdaConnection.html#gda-connection-execute-command" title="gda_connection_execute_command ()"><span class="type">gda_connection_execute_command</span></a>.</p>
<p>
</p>
<div class="variablelist"><table border="0">
<col align="left" valign="top">
<tbody>
<tr>
<td><p><span class="term"><em class="parameter"><code>cnc</code></em> :</span></p></td>
<td> a <span class="type">GdaConnection</span> object.
</td>
</tr>
<tr>
<td><p><span class="term"><em class="parameter"><code>cmd</code></em> :</span></p></td>
<td> a <a class="link" href="libgda-gda-command.html#GdaCommand" title="GdaCommand"><span class="type">GdaCommand</span></a>.
</td>
</tr>
<tr>
<td><p><span class="term"><em class="parameter"><code>params</code></em> :</span></p></td>
<td> parameter list.
</td>
</tr>
<tr>
<td><p><span class="term"><span class="emphasis"><em>Returns</em></span> :</span></p></td>
<td> a <a class="link" href="libgda-gda-row.html#GdaDataModel" title="GdaDataModel"><span class="type">GdaDataModel</span></a> containing the data returned by the
data source, or <code class="literal">NULL</code> on error.
</td>
</tr>
</tbody>
</table></div>
</div>
<hr>
<div class="refsect2" lang="en">
<a name="gda-connection-execute-non-query"></a><h3>gda_connection_execute_non_query ()</h3>
<pre class="programlisting">gint gda_connection_execute_non_query (GdaConnection *cnc,
<a class="link" href="libgda-gda-command.html#GdaCommand" title="GdaCommand">GdaCommand</a> *cmd,
<a class="link" href="libgda-gda-parameter.html#GdaParameterList" title="GdaParameterList">GdaParameterList</a> *params);</pre>
<p>
Executes a single command on the underlying database, and gets the
number of rows affected.</p>
<p>
</p>
<div class="variablelist"><table border="0">
<col align="left" valign="top">
<tbody>
<tr>
<td><p><span class="term"><em class="parameter"><code>cnc</code></em> :</span></p></td>
<td> a <span class="type">GdaConnection</span> object.
</td>
</tr>
<tr>
<td><p><span class="term"><em class="parameter"><code>cmd</code></em> :</span></p></td>
<td> a <a class="link" href="libgda-gda-command.html#GdaCommand" title="GdaCommand"><span class="type">GdaCommand</span></a>.
</td>
</tr>
<tr>
<td><p><span class="term"><em class="parameter"><code>params</code></em> :</span></p></td>
<td> parameter list.
</td>
</tr>
<tr>
<td><p><span class="term"><span class="emphasis"><em>Returns</em></span> :</span></p></td>
<td> the number of affected rows by the executed command,
or -1 on error.
</td>
</tr>
</tbody>
</table></div>
</div>
<hr>
<div class="refsect2" lang="en">
<a name="gda-connection-begin-transaction"></a><h3>gda_connection_begin_transaction ()</h3>
<pre class="programlisting">gboolean gda_connection_begin_transaction (GdaConnection *cnc,
GdaTransaction *xaction);</pre>
<p>
Starts a transaction on the data source, identified by the
<em class="parameter"><code>xaction</code></em> parameter.
</p>
<p>
Before starting a transaction, you can check whether the underlying
provider does support transactions or not by using the
<a class="link" href="libgda-GdaConnection.html#gda-connection-supports" title="gda_connection_supports ()"><span class="type">gda_connection_supports</span></a> function.</p>
<p>
</p>
<div class="variablelist"><table border="0">
<col align="left" valign="top">
<tbody>
<tr>
<td><p><span class="term"><em class="parameter"><code>cnc</code></em> :</span></p></td>
<td> a <span class="type">GdaConnection</span> object.
</td>
</tr>
<tr>
<td><p><span class="term"><em class="parameter"><code>xaction</code></em> :</span></p></td>
<td> a <span class="type">GdaTransaction</span> object.
</td>
</tr>
<tr>
<td><p><span class="term"><span class="emphasis"><em>Returns</em></span> :</span></p></td>
<td> <code class="literal">TRUE</code> if the transaction was started successfully, <code class="literal">FALSE</code>
otherwise.
</td>
</tr>
</tbody>
</table></div>
</div>
<hr>
<div class="refsect2" lang="en">
<a name="gda-connection-commit-transaction"></a><h3>gda_connection_commit_transaction ()</h3>
<pre class="programlisting">gboolean gda_connection_commit_transaction (GdaConnection *cnc,
GdaTransaction *xaction);</pre>
<p>
Commits the given transaction to the backend database. You need to do
<a class="link" href="libgda-GdaConnection.html#gda-connection-begin-transaction" title="gda_connection_begin_transaction ()"><code class="function">gda_connection_begin_transaction()</code></a> first.</p>
<p>
</p>
<div class="variablelist"><table border="0">
<col align="left" valign="top">
<tbody>
<tr>
<td><p><span class="term"><em class="parameter"><code>cnc</code></em> :</span></p></td>
<td> a <span class="type">GdaConnection</span> object.
</td>
</tr>
<tr>
<td><p><span class="term"><em class="parameter"><code>xaction</code></em> :</span></p></td>
<td> a <span class="type">GdaTransaction</span> object.
</td>
</tr>
<tr>
<td><p><span class="term"><span class="emphasis"><em>Returns</em></span> :</span></p></td>
<td> <code class="literal">TRUE</code> if the transaction was finished successfully,
<code class="literal">FALSE</code> otherwise.
</td>
</tr>
</tbody>
</table></div>
</div>
<hr>
<div class="refsect2" lang="en">
<a name="gda-connection-rollback-transaction"></a><h3>gda_connection_rollback_transaction ()</h3>
<pre class="programlisting">gboolean gda_connection_rollback_transaction (GdaConnection *cnc,
GdaTransaction *xaction);</pre>
<p>
Rollbacks the given transaction. This means that all changes
made to the underlying data source since the last call to
<a class="link" href="libgda-GdaConnection.html#gda-connection-begin-transaction" title="gda_connection_begin_transaction ()"><span class="type">gda_connection_begin_transaction</span></a> or <a class="link" href="libgda-GdaConnection.html#gda-connection-commit-transaction" title="gda_connection_commit_transaction ()"><span class="type">gda_connection_commit_transaction</span></a>
will be discarded.</p>
<p>
</p>
<div class="variablelist"><table border="0">
<col align="left" valign="top">
<tbody>
<tr>
<td><p><span class="term"><em class="parameter"><code>cnc</code></em> :</span></p></td>
<td> a <span class="type">GdaConnection</span> object.
</td>
</tr>
<tr>
<td><p><span class="term"><em class="parameter"><code>xaction</code></em> :</span></p></td>
<td> a <span class="type">GdaTransaction</span> object.
</td>
</tr>
<tr>
<td><p><span class="term"><span class="emphasis"><em>Returns</em></span> :</span></p></td>
<td> <code class="literal">TRUE</code> if the operation was successful, <code class="literal">FALSE</code> otherwise.
</td>
</tr>
</tbody>
</table></div>
</div>
<hr>
<div class="refsect2" lang="en">
<a name="gda-connection-create-blob"></a><h3>gda_connection_create_blob ()</h3>
<pre class="programlisting">gboolean gda_connection_create_blob (GdaConnection *cnc,
<a class="link" href="libgda-gda-blob.html#GdaBlob" title="GdaBlob">GdaBlob</a> *blob);</pre>
<p>
Creates a BLOB (Binary Large OBject) with read/write access.</p>
<p>
</p>
<div class="variablelist"><table border="0">
<col align="left" valign="top">
<tbody>
<tr>
<td><p><span class="term"><em class="parameter"><code>cnc</code></em> :</span></p></td>
<td> a <span class="type">GdaConnection</span> object.
</td>
</tr>
<tr>
<td><p><span class="term"><em class="parameter"><code>blob</code></em> :</span></p></td>
<td> a user-allocated <a class="link" href="libgda-gda-blob.html#GdaBlob" title="GdaBlob"><span class="type">GdaBlob</span></a> structure.
</td>
</tr>
<tr>
<td><p><span class="term"><span class="emphasis"><em>Returns</em></span> :</span></p></td>
<td> <code class="literal">FALSE</code> if the database does not support BLOBs. <code class="literal">TRUE</code> otherwise
and the GdaBlob is created and ready to be used.
</td>
</tr>
</tbody>
</table></div>
</div>
<hr>
<div class="refsect2" lang="en">
<a name="gda-connection-get-errors"></a><h3>gda_connection_get_errors ()</h3>
<pre class="programlisting">const GList* gda_connection_get_errors (GdaConnection *cnc);</pre>
<p>
Retrieves a list of the last errors ocurred in the connection.
You can make a copy of the list using <a class="link" href="libgda-GdaError.html#gda-error-list-copy" title="gda_error_list_copy ()"><span class="type">gda_error_list_copy</span></a>.</p>
<p>
</p>
<div class="variablelist"><table border="0">
<col align="left" valign="top">
<tbody>
<tr>
<td><p><span class="term"><em class="parameter"><code>cnc</code></em> :</span></p></td>
<td> a <span class="type">GdaConnection</span>.
</td>
</tr>
<tr>
<td><p><span class="term"><span class="emphasis"><em>Returns</em></span> :</span></p></td>
<td> a GList of <span class="type">GdaError</span>.
</td>
</tr>
</tbody>
</table></div>
</div>
<hr>
<div class="refsect2" lang="en">
<a name="GdaConnectionFeature"></a><h3>enum GdaConnectionFeature</h3>
<pre class="programlisting">typedef enum {
GDA_CONNECTION_FEATURE_AGGREGATES,
GDA_CONNECTION_FEATURE_BLOBS,
GDA_CONNECTION_FEATURE_INDEXES,
GDA_CONNECTION_FEATURE_INHERITANCE,
GDA_CONNECTION_FEATURE_NAMESPACES,
GDA_CONNECTION_FEATURE_PROCEDURES,
GDA_CONNECTION_FEATURE_SEQUENCES,
GDA_CONNECTION_FEATURE_SQL,
GDA_CONNECTION_FEATURE_TRANSACTIONS,
GDA_CONNECTION_FEATURE_TRIGGERS,
GDA_CONNECTION_FEATURE_UPDATABLE_CURSOR,
GDA_CONNECTION_FEATURE_USERS,
GDA_CONNECTION_FEATURE_VIEWS,
GDA_CONNECTION_FEATURE_XML_QUERIES
} GdaConnectionFeature;
</pre>
<p>
</p>
</div>
<hr>
<div class="refsect2" lang="en">
<a name="gda-connection-supports"></a><h3>gda_connection_supports ()</h3>
<pre class="programlisting">gboolean gda_connection_supports (GdaConnection *cnc,
<a class="link" href="libgda-GdaConnection.html#GdaConnectionFeature" title="enum GdaConnectionFeature">GdaConnectionFeature</a> feature);</pre>
<p>
Asks the underlying provider for if a specific feature is supported.</p>
<p>
</p>
<div class="variablelist"><table border="0">
<col align="left" valign="top">
<tbody>
<tr>
<td><p><span class="term"><em class="parameter"><code>cnc</code></em> :</span></p></td>
<td> a <span class="type">GdaConnection</span> object.
</td>
</tr>
<tr>
<td><p><span class="term"><em class="parameter"><code>feature</code></em> :</span></p></td>
<td> feature to ask for.
</td>
</tr>
<tr>
<td><p><span class="term"><span class="emphasis"><em>Returns</em></span> :</span></p></td>
<td> <code class="literal">TRUE</code> if the provider supports it, <code class="literal">FALSE</code> if not.
</td>
</tr>
</tbody>
</table></div>
</div>
<hr>
<div class="refsect2" lang="en">
<a name="GdaConnectionSchema"></a><h3>enum GdaConnectionSchema</h3>
<pre class="programlisting">typedef enum {
GDA_CONNECTION_SCHEMA_AGGREGATES,
GDA_CONNECTION_SCHEMA_DATABASES,
GDA_CONNECTION_SCHEMA_FIELDS,
GDA_CONNECTION_SCHEMA_INDEXES,
GDA_CONNECTION_SCHEMA_LANGUAGES,
GDA_CONNECTION_SCHEMA_NAMESPACES,
GDA_CONNECTION_SCHEMA_PARENT_TABLES,
GDA_CONNECTION_SCHEMA_PROCEDURES,
GDA_CONNECTION_SCHEMA_SEQUENCES,
GDA_CONNECTION_SCHEMA_TABLES,
GDA_CONNECTION_SCHEMA_TRIGGERS,
GDA_CONNECTION_SCHEMA_TYPES,
GDA_CONNECTION_SCHEMA_USERS,
GDA_CONNECTION_SCHEMA_VIEWS
} GdaConnectionSchema;
</pre>
<p>
</p>
</div>
<hr>
<div class="refsect2" lang="en">
<a name="gda-connection-get-schema"></a><h3>gda_connection_get_schema ()</h3>
<pre class="programlisting"><a class="link" href="libgda-gda-row.html#GdaDataModel" title="GdaDataModel">GdaDataModel</a>* gda_connection_get_schema (GdaConnection *cnc,
<a class="link" href="libgda-GdaConnection.html#GdaConnectionSchema" title="enum GdaConnectionSchema">GdaConnectionSchema</a> schema,
<a class="link" href="libgda-gda-parameter.html#GdaParameterList" title="GdaParameterList">GdaParameterList</a> *params);</pre>
<p>
Asks the underlying data source for a list of database objects.
</p>
<p>
This is the function that lets applications ask the different
providers about all their database objects (tables, views, procedures,
etc). The set of database objects that are retrieved are given by the
2 parameters of this function: <em class="parameter"><code>schema</code></em>, which specifies the specific
schema required, and <em class="parameter"><code>params</code></em>, which is a list of parameters that can
be used to give more detail about the objects to be returned.
</p>
<p>
The list of parameters is specific to each schema type.</p>
<p>
</p>
<div class="variablelist"><table border="0">
<col align="left" valign="top">
<tbody>
<tr>
<td><p><span class="term"><em class="parameter"><code>cnc</code></em> :</span></p></td>
<td> a <span class="type">GdaConnection</span> object.
</td>
</tr>
<tr>
<td><p><span class="term"><em class="parameter"><code>schema</code></em> :</span></p></td>
<td> database schema to get.
</td>
</tr>
<tr>
<td><p><span class="term"><em class="parameter"><code>params</code></em> :</span></p></td>
<td> parameter list.
</td>
</tr>
<tr>
<td><p><span class="term"><span class="emphasis"><em>Returns</em></span> :</span></p></td>
<td> a <a class="link" href="libgda-gda-row.html#GdaDataModel" title="GdaDataModel"><span class="type">GdaDataModel</span></a> containing the data required. The caller is responsible
of freeing the returned model.
</td>
</tr>
</tbody>
</table></div>
</div>
</div>
</div>
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