How to backup a [SQL Server] database if privileges are not present?

I have complete readonly access to a SQL Server Database. If I try to do a backup, I get the following message.

The EXECUTE permission was denied on the object 'xp_get_tape_devices', database 'mssqlsystemresource', schema 'sys'.

How can开发者_开发百科 I take a backup and load this data into my local SQLServer Express Edition?

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You can't. That's the whole purpose of the SQL Server security model. Otherwise, any valid database user with read access would be able to backup a DB and restore it somewhere else in order to view sensitive data. The last thing anyone wants is users messing with the database engine.

Ask the DBA if you can obtain a copy, if permitted.