UPDATE  t_ifm_bizdealbill SET fguarantee ='7' WHERE fguarantee = '1' OR fguarantee = ',1,';
UPDATE  t_ifm_bizdealbill SET fguarantee = replace(fguarantee,',1,',',')   WHERE  fguarantee != '1' AND fguarantee != ',1,' AND  fguarantee LIKE '%1%';