MSSQL Mirroring equivalent to Oracle Data Guard Snapshot Standby
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07-01-2021 - |
Pregunta
Does MSSQL support an operating mode on the failover partner / mirror that is functionally equivalent to Oracle database's Snapshot Standby mode?
ie A temporary active copy of the replicated database that can be open for read/write but can be reverted back to a replication target without rebuild?
Solución
Mirroring does NOT have this capability. If you are using the Enterprise Edition of SQL Server then an Availability Group (MSSQL's successor to mirroring) with a readable secondary would do this, but you would be required to license both instances with EE licenses.
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