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Rebuilding indexes
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À
02/07/2001 10:04:10
Rick Graves
Advanced Approach Ltd.
Hong Kong, Hong Kong
Information générale
Forum:
Visual FoxPro
Catégorie:
Base de données, Tables, Vues, Index et syntaxe SQL
Divers
Thread ID:
00525867
Message ID:
00525869
Vues:
31
This message has been marked as the solution to the initial question of the thread.
Hi!

I never remember these things because there is nice tool called GENDBC. I just look to its code to see how it strips out all these indexes and information about them. Or, I just generate the RG file for database, strip out only code for indexing, than use that code to recreate all indexes in database ;)

HTH.

>Hello world,
>
>I would like to get all the information on the indexes in a database so I can recreate the indexes from scratch.
>
>I have two purposes, 1) thoroughly "reindex" the tables, and 2) back up the tables without the indexes, and then rebuild the indexes in the event of a restore. Concerning 1), Menachem Bazian has written that CDX files can bloat, and this can only be remedied with DELETE TAG ALL, after which one must reconstruct the persistent relations in the database. Concerning 2), I have a back up bottleneck, and it would be convenient to eliminate the CDX files from the back up set.
>
>I can get the tag names and kex expressions from the TAG() and KEY() functions. I can get the primary key tag with dbGetProp(). How do I get the order (ascending or descending), the index type (candidate, unique, regular) for non-primary tags, and whether there is a filter?
>
>Any general comments, suggestions or caveats conerning this approach?
>
>Thanks,
>
>Rick Graves (displaced American currently residing in Hong Kong)
Vlad Grynchyshyn, Project Manager, MCP
vgryn@yahoo.com
ICQ #10709245
The professional level of programmer could be determined by level of stupidity of his/her bugs

It is not appropriate to say that question is "foolish". There could be only foolish answers. Everybody passed period of time when knows nothing about something.
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