The Resource database is installed only with SQL Server 2005 and higher. Because the Resource database is read-only, it is only modified by the system when a SQL Server hotfix, service pack, or upgrade is installed on an instance. Interaction with the Resource database is indirect, through master database system views and functions that reference these objects. This system database is not displayed in the SQL Server Management Studio object explorer, so users may not be aware of it. The Resource database is a read-only database that contains all SQL Server system objects. Resource ( SQL Server 2005 and higher only).These system databases allow the database engine and administrative applications to properly manage the system: The only solution is to first rebuild the master database using the command line setup as shown next, reapply any SQL Server updates, start SQL Server in single-user mode, and restore the master database.When you install Microsoft SQL Server, five system databases are automatically created on every SQL Server instance. Attempting to connect to the instance with Management Studio invokes a warning that the server does not exist or that access is denied. Attempting to start SQL Server will have no effect. If the master database is corrupted or damaged, SQL Server won't start. Modifying any server or database-configuration optionsīecause the msdb database holds a record of all backups, back up the master database and then the msdb database.Modifying security by adding logins or changing roles.You back up the master database in the same manner as user databases.īe sure to back up the master database when doing any of the following: Using only full backups for the master database is OK it's not a transactional database. The master database, by default, uses the simple recovery model. A complete recovery plan must include the system databases. The master database contains key database and security information, and the msdb database holds the schedules and jobs for SQL Server, as well as the backup history. So far, this chapter has dealt only with user databases, but the system databases are important to the recovery operation as well.

Ms sql master database