PARIS, FRANCE: Sun Microsystems, Inc. has announced a major new version of its MySQL Enterprise subscription service to help corporate users dramatically improve the speed and uptime of their MySQL ...

What exactly does 1 unit of cost represent in SQL Query Analyzer execution plans? [ie: Subtree Cost: 41.2134] Obviously it is some form of measurement since a very simple "select @@version" is like ...

I'm not sure it really is actually estimated because as far as I know the only way it can show you what the query plan is is by executing it. So then it really isn't an estimate. I'm sure I'm totally ...