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Message Posted: Wed, 05 Jan 2005 @ 11:39:03 GMT

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Vivek,

Assuming t1.dt is not null, try:

     Create macro m1(start_dt as integer) as
     (
     sel * from t1 where :Start_Dt is null
     Union All
     sel * from t1 where t1.dt= :start_dt;
     );

Hope this helps,

Clay

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