What is the difference between full and bulk logged recovery models?
With the simple recovery model, the only point that a database can be restored to is the last full backup or a differential. Whereas the full and bulk-logged recovery models allow a database to be recovered to a point after the full backup using a point-in-time restore.
What is the recovery model in SQL?
The recovery model basically tells SQL Server what data to keep in the transaction log file and for how long. Based on the recovery model that is selected, this will also determine what types of backups you can perform and also what types of database restores can be performed.
What are the three recovery models in SQL Server?
A recovery model is a database property that controls how transactions are logged, whether the transaction log requires (and allows) backing up, and what kinds of restore operations are available. Three recovery models exist: simple, full, and bulk-logged.
Can we take log backup in simple recovery model?
A database with Simple recovery model supports only two types of backup, the Full backup and Differential backup, with no possibility for the SQL Server Transaction Log backup here.
What is full recovery model?
A full recovery model is database recovery model that completely logs all transactions and automatically stores the full set of log records until after they are backed up. … It is also possible to restore a database to a specific recovery point in a log backup.
Can we take log backup in bulk log recovery model?
It is important to note that you can indeed recover a transaction log containing bulk logged operations but not to a particular point in time. Instead you can take a transaction log backup as soon as the bulk operation is finished and regain PIT recovery.
Can I change recovery model from full to simple?
Start Microsoft SQL Server Management Studio. Expand ‘Databases’. Right-click the database that has the transaction log you wish to shrink and select ‘Tasks’ > ‘Shrink’ > ‘Files’.
What are the types of recovery?
There are three basic types of recovery: instance recovery, crash recovery, and media recovery.
How do I change the recovery model in SQL Server?
Changing the Database Recovery Model
- Open the Microsoft SQL Server Management Studio.
- Log into your database server.
- In the directory tree, expand Server NameSQL Instance > Databases.
- Right-click the PLUS database.
- Select Properties. …
- In the Select a Page pane, click Options. …
- In the Recovery model list, select Full.