This study compares the effort of managing Oracle Database 10g Release 2 to the effort of accomplishing equivalent tasks in Microsoft SQL Server 2005. Edison Group has previously published a series of manageability studies comparing the major RDBMS products in terms of their ability to manage and administer routine database tasks and resources. These manageability studies are based on our proprietary methodology, Comparative Management Cost Study (CMCS), which identifies the effort and complexity of administration processes. One of these earlier studies 1 compares Oracle Database 10g Release 1 and Microsoft SQL Server 2000. Both of these vendors have released new product versions since that study (Oracle Database 10g Release 2 and Microsoft SQL Server 2005), and this study compares these new releases using the same methodology used for earlier studies.