--- Jeff Beer <[EMAIL PROTECTED]> wrote: > Is there any benefit to indexing a "tinyint" field > that is used as a boolean > (either 1 or 0)? I have four fields that work this > way and I use them > heavily in queries for reporting. They are used in > aggregate functions > (count and sum) as well as in the where clauses for > various queries.
Indexing isn't helpful unless you have a large number of distinct values (relative to total database entries) and may even be harmful. In the case of a boolean field, it's a definite no no. ===== I-Lin Kuo Macromedia CF5 Advanced Developer Sun Certified Java 2 Programmer __________________________________________________ Do You Yahoo!? Yahoo! Sports - Coverage of the 2002 Olympic Games ______________________________________________________________________ Dedicated Windows 2000 Server PIII 800 / 256 MB RAM / 40 GB HD / 20 GB MO/XFER Instant Activation · $99/Month · Free Setup http://www.pennyhost.com/redirect.cfm?adcode=coldfusiona FAQ: http://www.thenetprofits.co.uk/coldfusion/faq Archives: http://www.mail-archive.com/cf-talk@houseoffusion.com/ Unsubscribe: http://www.houseoffusion.com/index.cfm?sidebar=lists
