>Perfect :o)
>THANKS
>

This is not equal to your original query.

>
>>Try
>>

>>SELECT tow.* FROM tow
>>	INNER JOIN inhistory ih ON tow.child_id = ih.child_id 
>>	WHERE tow.towid > 0 AND tow.vehi_id > 0 AND canccode = '    '
>>			AND 
>>                (ih.child_id IN ('<<lcchild_id>>', '<<lcParent_Id>>')
>>		 OR ih.parent_id IN ('<<lcchild_id>>', '<<lcParent_Id>>'))
>>

>>
>>>On systems with hundreds of thousands of records, these two queries take 17 seconds. Can anyone see a way to optimize them without changing the results? It's a strange query which was modified in the past to add the >0 section because sqlserver was returning errors without out it.
>>>
>>>

lcParent_Id = ALLTRIM(NVL(parent_id,''))  && 
>>>lcChild_Id = ALLTRIM(NVL(child_id,''))
>>>
>>>TEXT TO lcSQL NOSHOW PRETEXT 15 TEXTMERGE
>>>
>>>      SELECT tw.* FROM tow AS tw
>>>
>>>       INNER JOIN
>>>
>>>            (SELECT inhistory.child_id FROM inhistory
>>>
>>>             WHERE  inhistory.child_id = '<<lcchild_id>>'
>>>
>>>             OR inhistory.parent_id = '<<lcchild_id>>'
>>>
>>>             OR (LEN(inhistory.child_id)>0 AND inhistory.child_id = '<<lcParent_Id>>')
>>>
>>>             OR (LEN(inhistory.parent_id)>0 AND inhistory.parent_id = '<<lcParent_Id>>')) qry1
>>>
>>>      ON tw.child_id = qry1.child_id WHERE tw.towid > 0 AND tw.vehi_id > 0 AND canccode='    '
>>>
>>>ENDTEXT
>>>
>>>IF SQLProc("SP",m.lcSQL,,,"cTowCT") > 0 && Return any Tow records
>>>
>>>      TEXT TO lcSQL2 NOSHOW PRETEXT 15 TEXTMERGE
>>>
>>>            SELECT qry2.towid, vh.* FROM vhtable as vh 
>>>
>>>      INNER JOIN
>>>
>>>            (<<m.lcSQL>>) qry2
>>>
>>>            ON vh.vehi_id = qry2.vehi_id ORDER BY vh.vehi_id
>>>
>>>      ENDTEXT
>>>
>>>      IF SQLProc("SP",m.lcSQL2,,,"cvhtableIn") > 0 && Return the vhtable Records
>>>
>>>            SELECT cvhtableIn
>>>
>>>      ENDIF
>>>
>>>ENDIF