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Transaction cross 2 Always on availability groups with asynchronize mode

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We have 2 AG each with on DB in it. the mode of the synchronization of those AG is Asynchronize.

What will happen in a case where a transaction crosses the boundary of a database.

Example SP on DB A deletes account records from DB B and inserts account records into DB A– in a single transaction.

what happens in a case of disaster to the copies in the DR site, will they be as it was before the begining of the transaction, or it could be that one DB will have half a trasaction commited on it?


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