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Common Query for both oracle and mysql.

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  #1  
Old December 2nd, 2011, 09:07 AM
mohdshahid mohdshahid is offline
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Common Query for both oracle and mysql.
Select Empid Empname From Employee Where Emclass Is Not Null And Empclass <>' ' And Empclass <>'';

Above Query Run Well For Mysql.but Not For Oracle Because Oracle Does Not Support Empty String.

But I Need Common Query For Both Oracle And Mysql With All The Three Above Condition.
Please Help Me
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Old January 27th, 2012, 12:29 AM
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debasisdas debasisdas is offline
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Quote:
Originally Posted by mohdshahid
Oracle Does Not Support Empty String.

Your understanding is wrong regarding how oracle handles Empty String.

Try this
Code:
Select Empid, Empname From Employee Where trim(Emclass) Is Not Null;

will work in both oracle and mysql.
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