[AccessD] Indexes on text fields

John Colby jcolby at colbyconsulting.com
Wed Aug 13 16:59:11 CDT 2003


Nope.  Concatenated fields are just a text string to the query engine.
However if you dragged the last and first name out into the query (even if
hidden), then sorted on those fields, it would sort in that order (of
course) and indexes on those fields would speed the sort.

John W. Colby
www.colbyconsulting.com

-----Original Message-----
From: accessd-bounces at databaseadvisors.com
[mailto:accessd-bounces at databaseadvisors.com]On Behalf Of Mark
Whittinghill
Sent: Wednesday, August 13, 2003 2:33 PM
To: accessd at databaseadvisors.com
Subject: [AccessD] Indexes on text fields


Let's say I have a Person table with FirstName and LastName fields.  Both
are non-unique indexed to help searches.  Now say I build a query with a
concatenated field FullName: LastName & ", " & FirstName.   Will the indexes
on these fields help speed searches on the FullName field?

Mark Whittinghill
Symphony Information Services
612-333-1311
mwhittinghill at symphonyinfo.com


_______________________________________________
AccessD mailing list
AccessD at databaseadvisors.com
http://databaseadvisors.com/mailman/listinfo/accessd
Website: http://www.databaseadvisors.com





More information about the AccessD mailing list