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Performance re-index before/after defragmentation?
Message
 
À
02/02/2003 14:14:00
Information générale
Forum:
Visual FoxPro
Catégorie:
Base de données, Tables, Vues, Index et syntaxe SQL
Divers
Thread ID:
00748158
Message ID:
00748235
Vues:
19
>Are you saying that if I reorder the table (i.e. move all the index fields to the beginning of the table or the end) I will get a smaller index file?
>
John,

Not quite. Say you have a table where records are retrieved by a stock keeping unit (SKU). During the course of time, new records are added. Some of these may have a value that would appear earlier in the table because of that value. By re-ordering the table by SKU and then re-building the index, it (the index) will be up to 20% smaller. I'm not talking about huge amounts of records either. I've seen this occur when there are 1,000-2,000 records.
George

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