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View are slow?
Message
From
01/05/2002 09:14:38
Cristian Tenea
Aquila Part Prod Com
Ploiesti, Romania
 
General information
Forum:
Visual FoxPro
Category:
Databases,Tables, Views, Indexing and SQL syntax
Title:
Miscellaneous
Thread ID:
00651210
Message ID:
00651279
Views:
21
>I have a 34MB table wich are updated by a local view in form.
>The view prezent ~10 records from a 400000 records table. After modify 1-3 records and issue a Tableupdate() proces take ~10 to 20 seconds on a Celeron 1000 with 196MB and 100Mb network (Network is not heavy used by others).
>Why view are so slow? Do not use Rushmore? (even a seek and replace will be much faster)

>
>If it is a parameterized view (or not) make sure you have indexes for the DBF on each parameter item , the order by field and the key field. This may help.
>
>Kevin

Table has primary key wich is used in where clause for update (where clause only by key field); no order by; 3 parameter for where 1 of them has index.
Slow working is only for sending sql update not for viewing data (requery).

Doru
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