1. Introduction

Casacade standby database is specific type of deployment in environments where it is required to have more than one standby database for primary database. In case of cascade standby database, 1st standby database is source of the archivelogs for the 2nd (cascade) standby database and so on. Number of cascading standby databases is theoretically unlimited, in real life however there won’t be usually more than 2 cascade standby databases.

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