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Index Expression Not Helping in Group/Distinct
Message
From
19/04/2000 13:53:35
Janis Booth
Webmd
Prospect
,
Connecticut
,
United States
To
19/04/2000 09:24:11
Steve Craft
Atomic9.NET
Philadelphia
,
Pennsylvania
,
United States
General information
Forum:
Visual FoxPro
Category:
Databases,Tables, Views, Indexing and SQL syntax
Title:
Re:
Index Expression Not Helping in Group/Distinct
Miscellaneous
Thread ID:
00360329
Message ID:
00361423
Views:
19
Steve,
Both DISTINCT and GROUP BY require that the entire record set be retreived and then compared to each other. There is no way to optimize those operations.
If you can describe the goal, perhaps there is another way to get the result you want.
Janis
www.JamesBooth.com
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