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While starting out of two DBs one DB getting error: ORA-01102: cannot mount database in EXCLUSIVE mode (Doc ID 2152488.1)

Last updated on JANUARY 13, 2020

Applies to:

Oracle Database - Standard Edition - Version to [Release 11.2 to 12.1]
Oracle Database Cloud Schema Service - Version N/A and later
Oracle Cloud Infrastructure - Database Service - Version N/A and later
Oracle Database Backup Service - Version N/A and later
Oracle Database Cloud Service - Version N/A and later
Information in this document applies to any platform.


Have 2 databases (prod and test) on the same machine, when startup the DB "test" and then try to startup the DB "prod" following error is coming.

If the process done backwards, (startup first prod and then test, ) then get the same error ora-01102


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