Summary of InfoWorld Magazine's Reviews of Major Relational Databases (2004 - 2005)
RDBMS SQL Server 2005 Oracle 10g IBM DB2 8.2 Sybase ASE My SQL 5.0
Rating Excellent Excellent Very Good Very Good Good
Score (out of 10) 9.1 8.8 8.2 8.4 7.7
Express Edition Cost* Free Free $624** Free*** Free
Standard Edition Cost* $5,999 $15,000 N/A N/A $595****
Enterprise Edition Cost* $24,999 $40,000 $33,000 $24,995 N/A
* License cost per CPU from InfoWorld data, except MySQL (The definition of a CPU varies by vendor and often week-to-week)
** IBM offers DB2 Express-C[ommunity] edition at no charge, but doesn't provide support
*** Sybase charges for support of ASE Express Edition for Linux, starting at $2,300 per year
**** MySQL support charges range from $595 (Basic) to $4,995 (Platinum) per server per year. MySQL Pro Certified Server requires a paid-support plan; Users of the free MySQL community edition must depend on peer support.

Table 4 SQL Server 2005 Scores Highest in Five InfoWorld RDBMS Reviews
InfoWorld's Sean McCown reviewed SQL Server 2005, Oracle 10g, IBM DB2 Universal Database 8.2, Sybase ASE, and MySQL 5.0 (see Resources). This summary data is from reviews that InfoWorld published in 2004 and 2005.