>>In my experience, Oracle was more robust and more reliable than anything else I worked with. ...
>
>In Turkey you cannot find a big company uses MS-SQL. All of ours big companies use Oracle. They think about MS-SQL "It's just for small firms, it's just a babytoy".

Oracle marketing a la IBM in the 60's and 70's.

Oracle is a solid DBMS. Very expensive, difficult to work with, but solid.

SQL Server is generally much less expensive, easier to work with, scalable, and solid, but if the Oracle salespeople have done their jobs then SQL Server won't be given a chance.