2/16/2023 0 Comments Fbackup mirror vs fullIn Azure SQL Managed Instance copy-only backup cannot be created for a database encrypted with service-managed Transparent Data Encryption (TDE). The transaction log is never truncated after a copy-only backup.Ĭopy-only backups are recorded in the is_copy_only column of the backupset table. For an example of this, see Example: Online Restore of a Read-Write File (Full Recovery Model). ![]() However, a copy-only log backup can sometimes be useful for performing an online restore. Instead, you can create a new routine log backup (using WITH NORECOVERY) and use that backup together with any previous log backups that are required for the restore sequence. Copy-only log backups are typically unnecessary. ![]() Restoring a copy-only full backup is the same as restoring any other full backup.Ĭopy-only log backups (full recovery model and bulk-logged recovery model only)Ī copy-only log backup preserves the existing log archive point and, therefore, does not affect the sequencing of regular log backups. The types of copy-only backups are as follows:Ĭopy-only full backups (all recovery models)Ī copy-only backup cannot serve as a differential base or differential backup and does not affect the differential base. ![]() However, occasionally, it is useful to take a backup for a special purpose without affecting the overall backup and restore procedures for the database. Usually, taking a backup changes the database and affects how later backups are restored. A copy-only backup is a SQL Server backup that is independent of the sequence of conventional SQL Server backups.
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