The DTA Purge and Archive (BizTAlkDTADb) job normally runs using the credentials of the logged-on SQL Server Agent service account user. For added security, however, you can configure the DTA Purge and Archive (BizTalkDTADb) job to run using the credentials of an account which is a member of the BTS_BACKUP_USERS role. This helps to prevent elevation of privileges by running SQL Server Agent jobs under accounts with essential permissions.
You must be logged on with an account that is a member of the SQL Server sysadmin fixed server role to perform this procedure.
To configure the BTS_BACKUP_USERS role for archiving and purging data from the BizTalk Tracking database
Click Start, click All Programs, click Microsoft SQL Server 2008 SP2, and then click SQL Server Management Studio.
In the Connect to Server dialog box, specify the name of the SQL server where the BizTalk Tracking (BizTalkDTADb) database resides and the appropriate authentication type, and then click Connect to connect to the appropriate SQL Server.
In Microsoft SQL Server Management Studio, double-click BizTalkDTADb, double-click Security, double-click Roles, and then double-click Database Roles.
In the Object Explorer Details pane, double-click BTS_BACKUP_USERS.
In the Database Role Properties – BTS_BACKUP_USERS dialog box, under Members of this role, click Add.
In the Select Database User or Role dialog box, enter a user account with SQL Server Agent Service credentials, and then click OK.