We now have an approaching project that'll be located via cloud computing, and that we have the option of Sun MySql Server, or Microsoft SQL Server because the DB after sales.

The actual technology we use works either either RDBMS, and so i am wondering which database system could be more performant when it comes to CPU cycles (which we are billed for)And would be the same database structure and kind of queries being run.

Does anybody have knowledge about this?

Best, Williard