12c Unplugging and Plugging the Database in the Same Container Database-PART7   Leave a comment

Here we are going to unplug TESTPDB1 and plug again with different name as “pdb_plug_nocopy”

So here we have 1 Container Database
1 Seeded Pluggable Database
1 Pluggable databases

2

Close the database.

alter pluggable database TESTPDB1 close immediate;

29-10-2013 12-44-50

Unlug the closed TESTPDB1 and then specify the path and name of the XML file.

mkdir -p /u01/app/oracle/oradata/CDB/TESTPDB_PLUG1/

alter pluggable database TESTPDB1 unplug into ‘/u01/app/oracle/oradata/CDB/TESTPDB_PLUG1/TESTPDB_PLUG1.xml’;

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Drop the closed PDB and keep the data files.

drop pluggable database TESTPDB1 keep datafiles;

select pdb_name, status from cdb_pdbs where pdb_name=’TESTPDB1′;

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The unplugging operation makes changes in the TESTPDB1 data files to record that the PDB was properly and successfully unplugged.

move the datafiles of testpd1 from /u01/app/oracle/oradata/CDB/testpdb1 to /u01/app/oracle/oradata/CDB/TESTPDB_PLUG1/

also edit the /u01/app/oracle/oradata/CDB/TESTPDB_PLUG1/TESTPDB_PLUG1.xml as per the changed locations accordingly.

Checking the Compatibility of the Unplugged PDB with the Host CDB
Before starting the plugging operation, make sure that the to-be-plugged-in PDB is compatible with the new host CDB. Execution of the PL/SQL block raises an error if it is not compatible.

Execute the following PL/SQL block:

set serveroutput on
DECLARE
compatible BOOLEAN := FALSE;
BEGIN
compatible := DBMS_PDB.CHECK_PLUG_COMPATIBILITY(
pdb_descr_file => ‘/u01/app/oracle/oradata/CDB/TESTPDB_PLUG1/TESTPDB_PLUG1.xml’);
if compatible then
DBMS_OUTPUT.PUT_LINE(‘Is pluggable TESTPDB1 compatible? YES’);
else DBMS_OUTPUT.PUT_LINE(‘Is pluggable TESTPDB1 compatible? NO’);
end if;
END;
/

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Plugging the Unplugged TESTPDB1: NOCOPY Method
Use the data files of the unplugged PDB to plug the PDB into another CDB without any copy.

create pluggable database pdb_plug_nocopy using ‘/u01/app/oracle/oradata/CDB/TESTPDB_PLUG1/TESTPDB_PLUG1.xml’
NOCOPY
TEMPFILE REUSE;29-10-2013 12-58-13

This operation lasts a few seconds. The original data files of the unplugged PDB now belong to the new plugged-in PDB in the new host CDB. A file with the same name as the temp file specified in the XML file exists in the target location. Therefore, the TEMPFILE_REUSE clause is required.

Verify the status and open mode of the plugged PDB. Proceed to the next section, “Opening the Plugged PDB,” to finalize the plugging operation.
select pdb_name, status from cdb_pdbs where pdb_name=’pdb_plug_nocopy’;

select open_mode from v$pdbs where name=’pdb_plug_nocopy’;

List the data files of the plugged PDB.
select name from v$datafile where con_id=3;

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Open the Database

last

lllll

 

NOTE: TESTPDB2 is another Pluggable Database which was there already.

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Posted October 29, 2013 by balaoracledba.com in 12cDatabase

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