What are SQL transaction logs and how do they relate to recovery models?

What are SQL transaction logs and how do they relate to recovery models?

SQL transaction logs are records of all transactions and database modifications made to a database. They are crucial for recovery models as they determine how data can be restored in case of a failure.

Can you explain the different types of recovery models?

Sure! There are three main recovery models: Full, Bulk-Logged, and Simple. The Full model allows for complete data recovery, the Bulk-Logged model is optimized for bulk operations, and the Simple model does not log transactions, making it less suitable for recovery.

What happens if I choose the Simple recovery model?

If you choose the Simple recovery model, you won't be able to restore your database to a specific point in time. It only allows for recovery of the most recent full backup.

How do I change the recovery model in SQL Server?

You can change the recovery model using the SQL Server Management Studio or by executing a T-SQL command like ALTER DATABASE [YourDatabaseName] SET RECOVERY FULL;.