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This is a surprise
Message
From
29/02/2000 07:35:08
 
 
To
29/02/2000 01:55:05
General information
Forum:
Visual FoxPro
Category:
Databases,Tables, Views, Indexing and SQL syntax
Miscellaneous
Thread ID:
00338270
Message ID:
00339005
Views:
23
Hi David,

That was the point of the article (or at least one of them) - when you have no deleted records you have the worst case (performance-wise) when DELETED is ON *and* you have a key on Deleted().

You can check this out quickly by simply running the SQL with DELETED set OFF to see if there is a difference.

Prior discussions on this led the believers to conclude that one should *test* using a key on Deleted() (assuming DELETED is ON) to verify that the query is otherwise fully optimized but them remove the key for production purposes.

Cheers,

Jim N


>G'day Jim,
>I haven't looked at the article again, you could be right but I'd be surprised. My tables had no deleted records.
>
SNIP
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