Plateforme Level Extreme
Abonnement
Profil corporatif
Produits & Services
Support
Légal
English
The use of UPPER() in an index
Message
De
04/03/2008 02:10:04
 
 
À
04/03/2008 02:07:18
Information générale
Forum:
Microsoft SQL Server
Catégorie:
Autre
Divers
Thread ID:
01298350
Message ID:
01298357
Vues:
34
>By default, SQL Server’s use of indexes is case-insensitive
>
>You may also want to take a look at collating sequences.
>http://www.sqlteam.com/article/using-indexed-computed-columns-to-improve-performance

The only reason I added UPPER() expressions in VFP was to benefit of UPPER() searches and be optimized. In SQL Server, if I only have an index on Username for example, which was previously UPPER(Username) in VFP, will it still be optimized even when UPPER(Username) is used in a WHERE clause?
Michel Fournier
Level Extreme Inc.
Designer, architect, owner of the Level Extreme Platform
Subscribe to the site at https://www.levelextreme.com/Home/DataEntry?Activator=55&NoStore=303
Subscription benefits https://www.levelextreme.com/Home/ViewPage?Activator=7&ID=52
Précédent
Suivant
Répondre
Fil
Voir

Click here to load this message in the networking platform