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<title>Get the last inserted row: GNOME Data Access 5 manual</title>
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<div class="sect1">
<div class="titlepage"><div><div><h2 class="title" style="clear: both">
<a name="id-1.3.3.9"></a>Get the last inserted row</h2></div></div></div>
<p>
<span class="application">Libgda</span> allows one to get the last inserted row right after an INSERT statement has been
executed. <span class="application">Libgda</span> returns a new <a class="link" href="GdaSet.html" title="GdaSet">GdaSet</a> object (which the caller
must unref when not needed anymore) which contains named values, one for each column of the
table in which data has been inserted. To get that object, pass a place holder to the
<em class="parameter"><code>last_insert_row</code></em> of
<a class="link" href="GdaConnection.html#gda-connection-statement-execute-non-select" title="gda_connection_statement_execute_non_select ()">gda_connection_statement_execute_non_select()</a>
</p>
<p>
The following code example show how to use the returned <a class="link" href="GdaSet.html" title="GdaSet">GdaSet</a> object:
</p>
<pre class="programlisting">
GdaSet *last_row;
GdaStatement *stmt;
stmt = gda_sql_parser_parse_string (parser, "INSERT INTO mytable (name) VALUES ('joe')", NULL, NULL);
if (gda_connection_statement_execute_non_select (connection, stmt, NULL, &last_row, &error) == -1) {
g_warning ("Can't execute INSERT: %s\n",
error && error->message ? error->message : "???");
if (error)
g_error_free (error);
}
else {
if (!last_row)
g_print ("Last row not reported\n");
else {
GSList *list;
for (list = last_row->holders; list; list = list->next) {
GdaHolder *h = GDA_HOLDER (list->data);
gchar *str;
str = gda_value_stringify (gda_holder_get_value (h));
g_print ("\t%s => %s\n", gda_holder_get_id (h), str);
g_free (str);
}
g_object_unref (last_row);
}
g_object_unref (stmt);
</pre>
<p>
Which gives the following output (considering that in the example the "mytable" table has two columns: an Id
and a Name columns):
</p>
<pre class="programlisting">
+0 => 1
+1 => joe
</pre>
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