How To Rename Global Name for a Pluggable Database- PDB

1. Set container to PDB named TEST
alter session set container=TEST;

2. Shut down and open it in restricted mode.
shutdown immediate;
startup open restrict;

3. Now rename the PDB
alter pluggable database TEST rename global_name to fundb;

4. Validate Now
show con_name;
show pdbs;

5. shutdown and start in normal mode.
shutdown immediate;

6. Verify
select name,open_mode from v$pdbs;

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