SQL Server - System Databases

Database is a collection of objects such as table, view, stored procedure, function, trigger, etc.

In MS SQL Server, two types of databases are available.

• System databases
• User Databases

System Databases

System databases are created automatically when we install MS SQL Server. Following is a list of system databases −

• Master
• Model
• MSDB
• Tempdb
• Resource (Introduced in 2005 version)
• Distribution (It’s for Replication feature only)

User Databases

User databases are created by users (Administrators, developers, and testers who have access to create databases).

Following methods are used to create user database.

Method 1 – Using T-SQL Script or Restore Database

Following is the basic syntax for creating database in MS SQL Server.

Create database <yourdatabasename>

OR

Restore Database <Your database name> from disk = '<Backup file location + file name>

Example

To create database called ‘Testdb’, run the following query.

Create database Testdb

OR

Restore database Testdb from disk = 'D:\Backup\Testdb_full_backup.bak'

Note − D:\backup is location of backup file and Testdb_full_backup.bak is the backup file name