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Performance issue Part II
Message
De
21/11/1996 13:08:39
 
 
À
21/11/1996 12:42:49
Information générale
Forum:
Visual FoxPro
Catégorie:
Autre
Divers
Thread ID:
00013025
Message ID:
00013028
Vues:
37
>This message is related to the performance issue threads that were created a few days ago.
>
>I made some robust test this morning on my 100000 records tables. Here's my result related to high volume tables.
>
>2.1.2 SCAN was slowing down the test drastically. I was using a SCAN to replace a value in a few records. I now have to use a SQL and apply the SCAN on the SQL and use the SEEK to be able to apply my REPLACE
>

What about REPLACE ALL FOR?

>3.1 If I delete a record in a child table, I just put a negative value of my record so the relation will be lost resulting in the same effect as SET DELETE ON. Yes, I still apply DELETE on that record so it will remove on the pack or will be recycle on the next ADD
>
>3.2 On my pick lists, I add to add the FOR UniqueId>0 so I won't get the deleted records

This is not consistent with INSERT TRIGGER for Child table which is usually RESTRICTED.
Edward Pikman
Independent Consultant
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