复制DELETE FROM dbo.S5_BinTest_Detail where BinTestID in (SELECT BinTestID from dbo.S5_BinTest_Info where TS <dateadd(dd,删除-90,getdate()) ) and datediff(dd,(select min(TS) from S5_BinTest_Info),TS)<=0 DELETE from dbo.S5_BinTest_Info where TS <dateadd(dd,-90,getdate()) and datediff(dd,(select min(TS) from S5_BinTest_Info),TS)<=0 1.2.3.4.5.6.7.8.