Busqueda de una tabla a otra

[jurena]

Código sql:

SELECT feeditems.itemtitle, feeditems.itemdescription, feeditems.itemlink 
FROM feeditems
WHERE EXISTS (
 
SELECT * 
FROM alertas
WHERE texto_alertas LIKE 'loquesea'
) AND (feeditems.itemtitle LIKE '%loquesea%' OR feeditems.itemdescription LIKE '%loquesea%' OR feeditems.tiemlink LIKE '%loquesea%')