It is always Microsoft which will be slammed by everyone for security issues. But a recent study showed that Oracle database had more vulnerabilities than SQL server. The comparison was made by NExt Generation Security Software Ltd. (NGSS). They had compared between Microsoft SQL Server 7,2000,2005 and Oracle’s DB versions 8,9 and 10g.
Read the full article here.
Recent Microsoft products are becoming more secure. e.g Windows XP SP2, Vista, SQL Server (as explained above).
Here are some links which talks about Microsoft SQL Server 2005:
Microsoft SQL Server: SQL Server 2005 Features at a Glance
Microsoft SQL Server 2005: SQL Server 2005 Features
Microsoft SQL Server: SQL Server 2005 Features Comparison
~RM~