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How To Connect Using A Sqlplus Preliminary Connection (Doc ID 986640.1)

Last updated on MAY 29, 2023

Applies to:

Oracle Database - Enterprise Edition - Version to [Release 10.2 to 12.1]
Oracle Database Cloud Schema Service - Version N/A and later
Oracle Database Exadata Cloud Machine - Version N/A and later
Oracle Cloud Infrastructure - Database Service - Version N/A and later
Oracle Database Backup Service - Version N/A and later
Information in this document applies to any platform.


Show a way to connect to a database through Sqlplus when all other connection methods are hanging. Using a Sqlplus preliminary connection you will be able to connect to the database since no session is actually created, but you will have limited access to the SGA.  This will help in capturing diagnostic information like a systemstate dump to aid in problem resolution.


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