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From
15/02/2010 14:17:18
 
 
To
15/02/2010 14:06:11
General information
Forum:
Visual FoxPro
Category:
Coding, syntax & commands
Title:
Environment versions
Visual FoxPro:
VFP 9 SP2
Miscellaneous
Thread ID:
01449210
Message ID:
01449213
Views:
75
>The following is very slow, presumably because of my use of IN
Select * From KTrackTagDetail							;
>	where (Seqno In (Select Seqno From C_Kits)			;
>	or SeqnoFG In (Select Seqno From C_Kits))			;
>	and Left (RecordType,2) # 'AP'						;
>	into Cursor C_Detail
>So, how can I speed this up?
>
>Thanks


Try ONE left join insstead of two select queries
Select * From KTrackTagDetail ;
	left join C_Kits on (  KTrackTagDetail.Seqno ==  C_Kits.Seqno ) ;
		or    (  KTrackTagDetail.SeqnoFG ==  C_Kits.Seqno ) ;
	where (  Left (RecordType,2) # 'AP' ) ;
	    and ( C_Kits.Seqno is not null )
Gregory
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