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Message Posted: Wed, 02 Sep 2009 @ 17:09:04 GMT

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Hi,

This is named "scalar subquery", there is two options: (move to TD13 :-) or rewrite the query by using cross join and derivad table :

     Select  distinct
       P.patient_name
     , P.Patient_age
     , P.Patient_weight
     , A.CountWarfarin
     , B.CountHeprin
     FROM patient P
     , (Select Count(*) AS CountWarfarin from drug_taken WHERE drug_name='Warfarin'
     patient_id=10)  A
     , (Select Count(*) AS CountHeprin from drug_taken WHERE drug_name='Heprin' patient_id=10)  B
     WHERE P.patient_id=10

B.Teymouri

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