What is the use of master database in SQL Server?

Question

The Master database is the primary configuration database in SQL Server. It contains information on all the databases that exist on the server, including the physical database files and their locations. The Master database also contains SQL Server's configuration settings and login account information.

What is the purpose of master DB?

The master database records all the system-level information for a SQL Server system. This includes instance-wide metadata such as logon accounts, endpoints, linked servers, and system configuration settings.

What is stored only in the master database?

Explanation: Server-scoped Dynamic Management View is stored only in the Master database.

What is database master key in SQL Server?

The database master key is a symmetric key used to protect the private keys of certificates and asymmetric keys that are present in the database. When it is created, the master key is encrypted by using the AES_256 algorithm and a user-supplied password.

What is the use of model database in SQL Server?

The model database is used as the template for all databases created on an instance of SQL Server. Because tempdb is created every time SQL Server is started, the model database must always exist on a SQL Server system.

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