日期:2014-05-18 浏览次数:20521 次
select * from B where not exists(select 1 from A where A.A=B.A and A.B=B.B and A.C=B.C)
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select b.* from b where not exists(select 1 from a where a.a = b.a and a.b = b.b and a.c = b.c)
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select b.* from b where not exists(select 1 from a where a.a = b.a and a.b = b.b and a.c = b.c)