刀不磨要生锈--SQL语句之“加总”Group By

刀不磨要生锈--SQL语句之“加总”Group By

要求：根据Reinsurance_Level和ReCompanyCode进行汇总：

select  t.reinsurance_Level,t.re_Company_Code, sum (t.ceded_Amount) 
     from  Claimnotice_Insurance_Detail t 
     where   1 = 1
--  此处加条件
  group   by  t.reinsurance_Level,t.re_Company_Code;

结果：

REINSURANCE_LEVEL	RE_COMPANY_CODE	3
1	1	2621000
1	2	1534000
1	3	375000
Q	2	302000
Q	4	302000