Setting the value of the Cross DB Ownership Chaining option to 0

The cross db ownership chaining option controls the cross-database ownership chaining across all the databases at the instance (or server) level.

To set the value of the cross db ownership chaining option to 0, run this T-SQL command on the IRC and the CM database:

EXECUTE sp_configure 'cross db ownership chaining', 0;
RECONFIGURE;
GO