Pluggable database 3
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This document discusses how to unplug and plug pluggable databases in Oracle 12c. It shows how to: 1. Unplug two pluggable databases named "new" and "new2" into XML files. 2. Drop the databases while keeping the datafiles. 3. Check for compatibility before plugging the databases into another container. 4. Plug the databases back into the container using the XML files with the "nocopy" and "copy" clauses.
Pluggable database 3
- 1. Pluggable Database Part 3 Osama Mustafa Page 1 Since Pluggable Database is New Topic to post about , I Cannot post Everything in One Post so i decide to do it as tutorial and this one part (3) , every Topics uploaded Here on my blog or on my Account on Shareslide here. In This topic: How to unplug database. Plugging Database to another Container Database. Let's Start : SQL> select name, con_id from v$active_services ; NAME CON_ID --------------------------------- ---------- new2 4 new 3 db12cXDB 1 db12c 1 SYS$BACKGROUND 1 SYS$USERS 1 As you see i already create two pluggable database new, new2 and now: SQL> alter pluggable database new close immediate ; Pluggable database altered. SQL> alter pluggable database new2 close immediate ; Pluggable database altered. Unplug database included with xml file: SQL> alter pluggable database new unplug into '/u01/app/oracle/oradata/new.xml'; Pluggable database altered. SQL> alter pluggable database new2 unplug into '/u01/app/oracle/oradata/new_2.xml'; Pluggable database altered.
- 2. Pluggable Database Part 3 Osama Mustafa Page 2 Drop Database: SQL> drop pluggable database new keep datafiles ; Pluggable database dropped. SQL> drop pluggable database new2 keep datafiles ; Pluggable database dropped. Make sure you drop database: SQL> select pdb_name, status from cdb_pdbs ; PDB_NAME STATUS ----------- ------------- PDB$SEED NORMAL Before Plug Database to any Container you need to make sure from compatibility, there's PL/SQL code written by Oracle to check compatibility. SQL > DECLARE compatible BOOLEAN := FALSE; BEGIN compatible := DBMS_PDB.CHECK_PLUG_COMPATIBILITY( pdb_descr_file => '/u01/app/oracle/oradata/new.xml'); if compatible then DBMS_OUTPUT.PUT_LINE('Is pluggable PDB1 compatible? YES'); else DBMS_OUTPUT.PUT_LINE('Is pluggable PDB1 compatible? NO'); end if; END; / Is pluggable PDB1 compatible? YES PL/SQL procedure successfully completed.
- 3. Pluggable Database Part 3 Osama Mustafa Page 3 The same will be for new2.xml Now Let’s Create Database Using With Two Way: SQL> create pluggable database newdb_plug using '/u01/app/oracle/oradata/new.xml' nocopy tempfile reuse ; Pluggable database created. SQL> select pdb_name, status from cdb_pdbs; PDB_NAME STATUS ------------------ ------------- NEWDB_PLUG NEW PDB$SEED NORMAL Another method to plug database: SQL> create pluggable database new_plug_copy using '/u01/app/oracle/oradata/new_2.xml' 2 copy 3 FILE_NAME_CONVERT=('/u01/app/oracle/oradata/New2','/u01/app/oracle/oradata/new_plug_copy'); Pluggable database created. SQL> select name,open_mode from v$pdbs; NAME OPEN_MODE ------------------------------ ---------- PDB$SEED READ ONLY NEWDB_PLUG MOUNTED NEW_PLUG_COPY MOUNTED Therefore Copy Clause : o if you want the files listed in the XML file to be copied to the new location and used for the new PDB. Nocopy Clause o if you want the files for the PDB to remain in their current locations.
- 4. Pluggable Database Part 3 Osama Mustafa Page 4 But what if i want to move all datafiles and create new pluggable database, oracle 12c provide you with new clause to do this which is "move" check below: SQL> create pluggable database new_plug_move using '/u01/app/oracle/oradata/new_2.xml' 2 move 3 FILE_NAME_CONVERT=('/u01/app/oracle/oradata/New2','/u01/app/oracle/oradata/move'); create pluggable database new_plug_move using '/u01/app/oracle/oradata/new_2.xml' * ERROR at line 1: ORA-65122: Pluggable database GUID conflicts with the GUID of an existing container. The above error is normal because i already create pluggable database using new_2.xml to solve it SQL> create pluggable database new_plug_move as clone using '/u01/app/oracle/oradata/new_2.xml' 2 move 3 FILE_NAME_CONVERT=('/u01/app/oracle/oradata/New2','/u01/app/oracle/oradata/move'); Pluggable database created. SQL> select pdb_name, status from cdb_pdbs; PDB_NAME STATUS ------------------- ------------- NEWDB_PLUG NEW PDB$SEED NORMAL NEW_PLUG_COPY NEW NEW_PLUG_MOVE NEW You can open any database now and work on them. Thank you Osama Mustafa