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Limitation of 24 elements in SELECT IN...?
Message
 
 
À
16/07/2008 13:13:06
Information générale
Forum:
Visual FoxPro
Catégorie:
Base de données, Tables, Vues, Index et syntaxe SQL
Versions des environnements
Visual FoxPro:
VFP 9 SP1
OS:
Windows XP SP2
Network:
Windows 2003 Server
Database:
MS SQL Server
Divers
Thread ID:
01331712
Message ID:
01331717
Vues:
12
>You are correct. I just found this:
>
>There are also no hard-coded limits on the number of items in a SQL IN list. In versions prior to Visual FoxPro 9, SQL IN was mapped to the INLIST() function; that dependency has been removed. This change allows an increase in the number of arguments for IN and for better optimization. Visual FoxPro 9 stops evaluating expressions from the list as soon as the match is found. This is helpful if the IN condition is not Rushmore-optimized, as performance can be improved by placing the most-likely-to-match values at the beginning of the list. The total number of items is still indirectly limited by the SYS(3055) function, which controls buffer memory size, so the higher the setting, the more items are supported via IN. (See the Common Error Messages sidebar for more information.)
>
>from:
>
>http://www.vfpconversion.com/Article.aspx?quickid=0404022
>
>Thanks Naomi...

You're welcome. I guess I read this info once as well. So, how we're going to solve the problem?
If it's not broken, fix it until it is.


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