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 ...

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SolarWinds, a provider of IT management software, is releasing the latest version of Database Performance Analyzer (DPA), a powerful database and query performance monitoring, analysis, and tuning ...