Restoring Database in Single User Mode

Restoring Database in Single User Mode

SQL (Standard Query Language) is the database language that is designed for RDBMS (Relational Database Management System) management. It is used for creating, editing, deleting, fetching, etc., the database, in order to maintain the data.

The database administrator should have good knowledge of SQL to maintain the application DB very efficiently. Although SQL is the best RDBMS in Microsoft, there are various purposes for the database to get corrupted. Hence, the administrator will take the backup. The database can get corrupted due to some damages in the database, if the database got deleted, unfortunately, due to the virus attack, failure of storage and so on.

Here, we are going to learn how the restore the corrupted or deleted Database if the backup is not available. In this situation, we make use of SQL File Recovery Software to recover the main database file (MDF). In order to do the recovery process, placing the Database in Single-user mode is a must to access the DB at a time.

· Procedure to place DB in Single-user mode – use the following command

Code:
/*ALTER DATABASE database-name SET SINGLE_USER WITH ROLLBACK IMMEDIATE*/
Note: the Rollback Immediate command will roll back immediately to the incomplete transaction.

The database is now placed in Single-user mode and now we can use the below command for restoring.

Code:
/*RESTORE DATABASE <your database name>*/
/*FROM DISK=’Backup location\yourbackupfile.BAK*/
Now the database will be restored. Later, we need to place the DB into Multiuser Mode using the below command

Code:
/*ALTER DATABASE your database name SET MULTI_USER WITH ROLLBACK IMMEDIATE*/
If still the database restore procedure got failed, the backup files might be corrupted. In this situation, the administration can make use of SQL Backup Recovery Software which helps the admin to recover the corrupted database.

This application can also be helpful to directly export the SQL DB, repairing the corrupted database backup files, viewing the SQL DB tables, procedures, functions, etc., detecting the server version, supporting SQL Bak file 2017 and below.
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