Running view in both SQLite-Manager and SQLiteStudio...regexp not recognized #88

SQLiteManager: Likely SQL syntax error: PRAGMA "main".table_info("vw_template_page_a") [ **no such function: regexp** ]
Exception Name: NS_ERROR_FAILURE
Exception Message: Component returned failure code: 0x80004005 (NS_ERROR_FAILURE) [mozIStorageConnection.createStatement]

SELECT 
 templ_id my_templ 
 ,CASE 
 WHEN xml_content regexp ('ss:ExpandedColumnCount="11" ') 
 or xml_content regexp ('^ </Table>$') 
 THEN NULL 
 ELSE row_no 
 END page_start 
 ,NULL page_end 
 ,'[' 
 || xml_content 
 || ']' 
 xml_content 
FROM 
 _template templ 
WHERE 
 xml_content 
 regexp ('<Table |</Table>') 
AND page_start 
 IS NOT NULL 
GROUP BY 
 my_templ 
 ,row_no