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±íB a b c f
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SELECT * from A aa, B bb where aa.a=bb.a and aa.b=bb.b
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SQL code:
SQL>
SQL> with A as (
2 select 1 a, 1 b, 2 c, 3 d from dual union all
3 select 1, 1, 3, 4 from dual
4 ),
5 B as
6 (
7 select 1 a, 1 b , 2 c, 5 f from dual
8 )
9 SELECT aa.*,bb.c,bb.f from A aa left join B bb on aa.a=bb.a and aa.b=bb.b and aa.c= bb.c
10 /
A B C D C F
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