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Database "" database is not in full recovery mode on each of the server instances. The full recovery model is required for a database to participate in database mirroring or in an availability group. [SQLSTATE 42000] (Error 1465).

Hi there.

This post will be a quick and easy fix.

If you are not already aware, availability groups are the replacement for mirroring in SSMS (SQL Server Management Studio).

We like to utilize availability groups so that there is minimal data loss. Also, in the event of some natural disaster or disk failure on a server that is participating in an availability group, the data will fail-over to a backup server (replica).

I was adding a database to an availability group when I received the error:

Database "database_name" database is not in full recovery mode on each of the server instances. The full recovery model is required for a database to participate in database mirroring or in an availability group. [SQLSTATE 42000] (Error 1465).

The error is exactly as it sounds; The database is not in the full recovery model.

To fix this:

I. In SSMS, right click the database to see the properties.
On the Options page, change the database recovery model to Full.



II. Open a new query window in SSMS.
Run this query against the master database:

ALTER AVAILABILITY GROUP [Availability_group_name]
ADD DATABASE [DatabaseName];
GO

Note: If you did not change the recovery model within a short time frame, you may have to perform a full backup of the database. This will be in the event you receive this error:
Msg 1475, Level 16, State 105, Line 21
Database "DatabaseName" might contain bulk logged changes that have not been backed up. Take a log backup on the principal database or primary database. Then restore this backup either on the mirror database to enable database mirroring or on every secondary database to enable you to join it to the availability group.


If you have any further questions, please post below.


Thank you and Happy reading,

-marshé hutchinson
#learnSQLwithme

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  1. AnonymousApril 17, 2022 at 7:43 PM

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