What is the purpose of master database?

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.

What is master database in Azure SQL?

master is a required system database that's responsible for holding info about all the the other database on the server instance, system metrics/config, managing logins & database creation etc, its read-only and can't be removed. You will need to create a new database and deploy to that.

What is the purpose of Model DB?

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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