delete from tab2 where (a,b,c) in (
select a,b,c from tab1);或者
delete from tab2 where exists(
select 1 from tab1 where tab1.a=tab2.a and
tab1.b=tab2.b and tab1.c=tab2.c);
select a,b,c from tab1);或者
delete from tab2 where exists(
select 1 from tab1 where tab1.a=tab2.a and
tab1.b=tab2.b and tab1.c=tab2.c);
解决方案 »
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