Question

I am bit stuck with this one.. what i want is update app_name (first table). It returns no error.. but does nothing…

UPDATE tbl_m_app AS tma, tbl_measure AS tm
SET tma.app_name='Ap1' 

WHERE (tm.mesure_id = tma.mesure_id
AND tm.live = 1)

Answer 1

This query will do the same work in more obvious way and without joins

UPDATE tbl_m_app AS tma
SET tma.app_name='Ap1'
WHERE tma.mesure_id IN (SELECT tm.mesure_id FROM tbl_measure AS tm WHERE tm.live = 1)