	<!-- Declaration of matrix table-->
	<db_table id="matrix">
		<table_name>matrix</table_name>
		<db_url_id>mysql</db_url_id>
		<column><field>first</field><type>DB1_INT</type></column>
		<column><field>second</field><type>DB1_INT</type></column>
		<column><field>res</field><type>DB1_INT</type></column>
	</db_table>
