It’s a bit dated now – is for SQL Server version 7.0 – but still relevant. I’ll update for version 2005 and convert to html format when I get the chance.
I produced that for a 1.5 day training course to give Oracle DBAs the knowledge they needed to work on SQL Server. They are similar enough relational database management systems for a quick conversion course like this to be enough to make the switch. And they are both common enough that a good DBA ought to be comfortable with both.