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delete ±í1
where ±í1.name = B.name and ±í1.password =B.password
(select name,password form ±í2 B)
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delete from ±í1 where ±í1.name in(select name from ±í2) and ±í1.password in (select password from ±í2)
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SQL code:
delete a from ±í1 a,±í2 b where a.name=b.name and a.password=b.password;
delete from ±í1 where (name,password) in(select name,password from ±í2);
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