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Apparent change in functionality between VFP6 & 7
Message
 
 
To
08/08/2002 20:04:33
Paul Dorrington
Dorrodata Computing Pty Ltd
Carlton, Australia
General information
Forum:
Visual FoxPro
Category:
Databases,Tables, Views, Indexing and SQL syntax
Miscellaneous
Thread ID:
00687302
Message ID:
00687792
Views:
19
You're welcome.

>Hello Sergey,
>
>Thanks very much for the information.
>
>Regards
>Paul
>
>
>>Hi Paul,
>>
>>It's somewhat documented in the Readme.htm on VFP installation CD:
>>
>>"Left Outer Join returns zero records on nulls.
>>If a Left Outer Join uses Upper(), and the variable is null, zero records will be returned. This is a change from the incorrect behavior in Visual FoxPro 6.0, which returned a single record.
>>Because there were several instances where SQL SELECT statements could return incorrect result sets in previous versions of Visual FoxPro, several changes were made in Visual FoxPro 7.0. You should verify that your SQL SELECT statements return expected result sets".
>>
>>
--sb--
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