problem;multiple rows are selecting..

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SQL

SELECT b.Patient_Id, a.ParameterId,b.Id,a.Target_Value,b.Sub_Type_Code
            FROM disease_parameter a, patient_progress_tracking_header b
           WHERE a.DiseaseId = 1 and b.Sub_Type_Code='BIOMADE'

when i am selecting values from disease_parameter and patient_progress_tracking_header
1 recorde get selected 3 times..please help me

Posted 15-Jan-13 19:05pm

ujali

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josh-jw · Answer 1 · 2013-01-15T19:15:00

Solution 1

check this link.
http://www.roseindia.net/sql/sqljoin/mysql-natural-join.shtml[^]

try to give join in your query with condition.

SQL

SELECT b.Patient_Id, a.ParameterId,b.Id,a.Target_Value,b.Sub_Type_Code
            FROM disease_parameter a JOIN  patient_progress_tracking_header b
           WHERE a.DiseaseId = 1 and b.Sub_Type_Code='BIOMADE'

Posted 15-Jan-13 19:15pm

josh-jw

Updated 16-Jan-13 4:03am

v2

Comments

ujali 16-Jan-13 1:19am

SELECT b.Patient_Id, a.ParameterId,b.Id,a.Target_Value,a.Sub_Type_Code
FROM disease_parameter a inner join patient_progress_tracking_header b on a.DiseaseId = b.DiseaseId
WHERE a.DiseaseId = 1 and b.Sub_Type_Code='BIOMADE'

I tried this also..this is also giving multiple rows

josh-jw 16-Jan-13 1:22am

without seeing your table result , i am not sure about this join. one thing do give a group by clause .