how to write oracle query when conditon in column vale satisfies.

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Hi how can i write oracle query when conditon of column satisfies then value should be take from another table

for eg

select ename,enmae,
case when loc='zyz' then
select location pin from pincode where pincodeno='zyz'
end
from emp;

Thanks in advance

Posted 27-Dec-13 21:55pm

lakshmichawala

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ZurdoDev 28-Dec-13 11:19am

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Maciej Los · Answer 1 · 2013-12-29T21:56:00

Solution 1

I think you're looking for EXISTS[^] statement.

SQL

SELECT ename, enmae
FROM emp WHERE EXISTS(SELECT [location pin] FROM pincode WHERE pincodeno='xyz' AND emp.loc=pincode.pincodeno);

Posted 29-Dec-13 21:56pm

Maciej Los