----- Original Message ----- From: "Blood Python" <[EMAIL PROTECTED]> To: "CF-Talk" <[EMAIL PROTECTED]> Sent: Tuesday, June 17, 2003 8:43 AM Subject: How many tables per datasource?
> Hi, how's everyone doing? :) > > I never thought about it until today, when i was asked about it while > explaing a bit if mysql for a friend. Is there a rule or best pratice to > know when it's time to create another datasource? Maybe spliting 1 > datasource with many tables on 2 or 3 increases performance... > I'd say there's a really simple rule -- you need a new datasource when you need to change one of the datasource connection properties that live in the datasource configuration. You can split a *dataBASE* for performance -- usually across different filesystems -- but the *dataSOURCE* is basically a configuration for accessing the database. You can think of crazy counterexamples -- tuning the number of simultaneous users and such in the datasource settings, but that is a really strange situation. And it fits into the simple rule I propose above -- new datasource when you need a new "configuration" for the connection to the database. I've seen situations where one datasource has only stored proc permissions (a MSSQL datasource) for the web "user" to use, while the admin app had SELECT/INSERT/UPDATE/DELETE as well -- but the database permissions and the username/password fields in CFQUERY could have handled that as well. Now if you're thinking about tuning the database to avoid hotspots and other performance issues, that's all about the database, not the datasource. And a very different discussion :) Regards, John Paul Ashenfelter CTO/TransitionPoint ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~| Archives: http://www.houseoffusion.com/cf_lists/index.cfm?forumid=4 Subscription: http://www.houseoffusion.com/cf_lists/index.cfm?method=subscribe&forumid=4 FAQ: http://www.thenetprofits.co.uk/coldfusion/faq Host with the leader in ColdFusion hosting. Voted #1 ColdFusion host by CF Developers. Offering shared and dedicated hosting options. www.cfxhosting.com/default.cfm?redirect=10481 Unsubscribe: http://www.houseoffusion.com/cf_lists/unsubscribe.cfm?user=89.70.4
