We have installed OBIEE 11g and are using database SQL Server 2008 R2.
The users of the repositories are connected to the master database, and our client query if these users can be disconnected from the master database, so that only stay connected to their corresponding repositories.
You can move out of Master database with SQL server. If such a case is being considered then you have to create a database with SQL server then move all the existing OBI repository's and its users to the new Database. Once this change is complete on the Database side on Weblogic Database connect strings needs to be changed.