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NID-00121: Database should not be open

Hi,

Sometimes You can get “NID-00121: Database should not be open ” error.

 

Details of error are as follows.

NID-00121: Database should not be open

Cause: The database was open. To change the DBID, the database must be mounted exclusively.
Action: Shutdown the database and mount it in exclusive mode.

 

 

This error is related with the database OPEN state. Shutdown Instance and startup mount mode.

shutdown immediate;


startup mount;

 

and Run nid tool again using the following post.

Oracle Database Name Change Using NID

 

 

Do you want to learn Oracle Database for Beginners, then read the following articles.

https://ittutorial.org/oracle-database-19c-tutorials-for-beginners/

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