alternative to sql server 2005

I got used to the xml suppo开发者_如何学Gort and recursive common table expressions of sql server 2005. I am just wondering whether any free dbs like mysql support these requirements nowadays? Thanks.

Christian

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PostgreSQL has support for XML, CTE's, windowing functions, etc. etc. etc. And it's not limited to a lousy 4GB. It also runs on Linux, Windows, etc.

Edit: MySQL doesn't support XML nor CTE's, nor windowing functions.