query error: Table 'saldo.al_sites' doesn't exist

in: SELECT idPage FROM al_sites,al_pages WHERE al_sites.name='law' AND al_pages.id=idPage AND al_pages.idus=al_sites.idus

query error: Table 'saldo.al_pages' doesn't exist

in: SELECT al_pages.id FROM al_pages,al_sites WHERE al_sites.name='law' AND al_sites.idus=al_pages.idus LIMIT 1