delete from ccr_Fundermental where company_name=‘kxb‘;
delete from ccr_credit_input_data where company_name=‘kxb‘
delete from ccr_historical_credit_record t where t.custermer_id=
(
select t1.id from ccr_Fundermental t1 where company_name=‘kxb‘
);
原文：http://www.cnblogs.com/kexb/p/4694767.html