I want to restore it with a different name ao that i am able to see the data present in the database .
Shut down SQL, take a copy of the mdf and ldf files, restart SQL then attach those copied files as a user database. You cannot take a SQL backup of the system resource DB as it is hidden.
There's not much data in there, far more it's procedures, views, functions and the like.
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: Discussions on DB performance with occasional diversions into recoverability
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