2008/9/23 Igor Tandetnik <[EMAIL PROTECTED]>:
> "Bruno Moreira Guedes"
> <[EMAIL PROTECTED]> wrote in message
> news:[EMAIL PROTECTED]
>> I have a query where I want to reuse a subquery result. By example:
>>
>> SELECT
>>     CASE WHEN
>>               (SELECT "value1") != ''
>>     THEN
>>               (SELECT "value1")
>>      ELSE
>>               (SELECT "value2")
>>      END;
>>
>> But I don't want to repeat all the subquery again in the 'THEN'
>> clause. Can I store the subquery result for using it again in the same
>> query??
>
> select case when a != '' then a else b end
> from (select 'value1' a, 'value2' b);
>
> Igor Tandetnik
>
>
>
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Igor,

Thank you by the idea!!

Where shoul I read more about reducing query sizes??

[]'s
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