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What is the version compatibility policy for DB Links?

April 26, 2017compatibility DB LINKS policy version

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What is the version compatibility policy for DB Links?

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DB Links from one database to another may require callbacks. This requires both databases are able to act as clients and servers. Therefore if the database where the link is created is version A, and the target database is version B, connections must be supported from version A clients to version B servers, AND connections must be supported from version B clients to version A servers. Click here for more information on client and server version compatibility.