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Exclude empty for both VFP and SQL Server
Message
De
08/04/2015 10:44:09
Mike Yearwood
Toronto, Ontario, Canada
 
 
Information générale
Forum:
Visual FoxPro
Catégorie:
Autre
Versions des environnements
Visual FoxPro:
VFP 9 SP2
OS:
Windows Server 2012
Network:
Windows 2008 Server
Database:
MS SQL Server
Application:
Web
Divers
Thread ID:
01617497
Message ID:
01618029
Vues:
60
>Hi,
>
>If I want to exclude empty records from a query for VFP data I would use:
>
>select * from MyTable where !empty( MyField )
>
>
>To do the same for SQL server, the query is:
>
>select * from MyTable where MyField <> ''
>
>
>If I wanted to have one SQL expression that works for both VFP and SQL, I can do the following
>
>select * from MyTable where LEN(rtrim( MyField) ) > 0
>
>
>Is the above efficient method or there is a better approach?
>
>TIA

EMPTY is not optimizable in FoxPro. I usually do LOCATE FOR field = space(len(field)) or something of that nature.
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