Security is a company-wide commitment. For SQL Server 2005, security is a priority and includes advanced security features such as integrated authentication, network data encryption, Kerberos support, and Public Key Infrastructure support.

It's important to have reporting facilities for the SAP Business Warehouse.

That is a promise that open source cannot deliver. Although customers of all sizes want the benefits of a trusted database, Microsoft understands that the specific database needs for hobbyist, mid-market, or large-enterprise customers can be extremely different.