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Subquery returned more than 1 value. This is not permitted when the subquery follows =, !=, <, <= , >, >= or when the subquery is used as an expression.
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Is there a way to check which subquerry returns more than one value?
Posted 8-Oct-12 18:53pm
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Solution 1

Use In Instead of =

i believe your query will look like this
Select * from tbl1 where col1=(select col1 from tbl2)

Use In operator here
Select * from tbl1 where col1 in (select col1 from tbl2)
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Solution 2

You have to execute each sub-query to know which returns more than one row.

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