UPDATE CADEMPRESA SET CGC='' WHERE CGC='00.000.000/0000-00'
UPDATE CADFORNEC SET CGC = '' WHERE CGC = '00.000.000/0000-00'
DELETE FROM CADFORNEC WHERE TIPOFORNEC <> 'E' AND CGC <> ''
UPDATE CADHOSPEDE SET CPF = '' WHERE CPF='000.000.000-00'
UPDATE CADHOSPEDE SET CPF='' WHERE CPF <'0' AND CPF <> ''