What does the master database do?

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 stored only in the master database?

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

Do I need to backup the master database?

It is recommended that the Master be backed up as often as necessary to protect the data: a weekly backup with additional backups after substantial updates is highly recommended. If for some reason the Master becomes unusable, restoring from the backup is the best way to get up and running.

Is stored only in the master database in SQL Server?

The information that a SQL Server instance needs is stored in the master database, like the information about all existing databases and the location of their data and transaction log files. If the master database does not exist or cannot be read then the SQL Server instance cannot start.

What is Master Data Services database?

The Master Data Services database: Stores the settings, database objects, and data required by the Master Data Services system. Contains staging tables that are used to process data from source systems. Provides a schema and database objects to store master data from source systems.

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