1. 手工建立PDB
從SEED database 建立PDB的時候，可以指定檔案存放的位置。 有兩種方法可以指定檔案的位置。
第一種是在CREATE PLUGGABLE DATABASE 語法中新增FILE_NAME_CONVERT選項。
SQL> set lin 120 SQL> col name for a60 SQL> select * from v$dbfile; 13 /u01/app/oracle/oradata/dave/pdb1/ado2.dbf 3 14 /u01/app/oracle/oradata/dave/pdb1/cndba01.dbf 3 22 /u01/app/oracle/oradata/dave/cndba/system.dbf 4 23 /u01/app/oracle/oradata/dave/cndba/sysaux.dbf 4 24 /u01/app/oracle/oradata/dave/cndba/users.dbf 4 25 /u01/app/oracle/oradata/dave/cndba/ado1.dbf 4 26 /u01/app/oracle/oradata/dave/cndba/ado2.dbf 4 18 rows selected.
檢視PDB的位置，建立新目錄：
[oracle@Ora12c ~]$ mkdir /u01/app/oracle/oradata/dave/huaining
SQL> create pluggable database huaining admin user cndba identified by cndba
file_name_convert=('/u01/app/oracle/oradata/dave/pdbseed/','/u01/app/oracle/oradata/dave/huaining/');
Pluggable database created.
也可以簡寫：
create pluggable database huaining admin user cndba identified by cndba
file_name_convert=('pdbseed','huaining');
SQL> show pdbs
CON_ID CON_NAME OPEN MODE RESTRICTED
---------- ------------------------------ ---------- ----------
2 PDB$SEED READ ONLY NO
3 PDB1 READ WRITE NO
4 CNDBA READ WRITE NO
5 HUAINING MOUNTED
--檢視PDB的狀態：是NEW，測試是不可用的。
SQL> set lin 120 SQL> col pdb_name for a15 SQL> select pdb_name,status from dba_pdbs; PDB_NAME STATUS --------------- --------- PDB1 NORMAL PDB$SEED NORMAL CNDBA NORMAL HUAINING NEW
必須顯示的開啟資料庫：
SQL> alter pluggable database huaining open; Pluggable database altered. SQL> show pdbs CON_ID CON_NAME OPEN MODE RESTRICTED ---------- ------------------------------ ---------- ---------- 2 PDB$SEED READ ONLY NO 3 PDB1 READ WRITE NO 4 CNDBA READ WRITE NO 5 HUAINING READ WRITE NO SQL> select pdb_name,status from dba_pdbs; PDB_NAME STATUS --------------- --------- PDB1 NORMAL PDB$SEED NORMAL CNDBA NORMAL HUAINING NORMAL
第二種方法，就是先指定PDB_FILE_NAME_CONVERT 引數的值，然後執行建立命令，此時就不需要指定FILE_NAME_CONVERT選項。
[oracle@Ora12c pdbseed]$ mkdir /u01/app/oracle/oradata/dave/ahdba SQL> show parameter pdb_ NAME TYPE VALUE ------------------------------------ ----------- ------------------------------ pdb_file_name_convert string pdb_lockdown string pdb_os_credential string SQL> alter session set pdb_file_name_convert='/u01/app/oracle/oradata/dave/pdbseed/','/u01/app/oracle/oradata/dave/ahdba/'; Session altered. SQL> show parameter pdb_ NAME TYPE VALUE ------------------------------------ ----------- ------------------------------ pdb_file_name_convert string /u01/app/oracle/oradata/dave/p dbseed/, /u01/app/oracle/orada ta/dave/ahdba/ pdb_lockdown string pdb_os_credential string SQL> SQL> create pluggable database ahdba admin user cndba identified by cndba; Pluggable database created. SQL> show pdbs CON_ID CON_NAME OPEN MODE RESTRICTED ---------- ------------------------------ ---------- ---------- 2 PDB$SEED READ ONLY NO 3 PDB1 READ WRITE NO 4 CNDBA READ WRITE NO 5 HUAINING READ WRITE NO 6 AHDBA MOUNTED SQL> alter pluggable database ahdba open; Pluggable database altered. SQL> show pdbs CON_ID CON_NAME OPEN MODE RESTRICTED ---------- ------------------------------ ---------- ---------- 2 PDB$SEED READ ONLY NO 3 PDB1 READ WRITE NO 4 CNDBA READ WRITE NO 5 HUAINING READ WRITE NO 6 AHDBA READ WRITE NO SQL>
2. 手工刪除PDB
在刪除PDB的時候，有2個選項 KEEP DATAFILES 和 including DATAFILES,預設是KEEP.
SQL> show pdbs CON_ID CON_NAME OPEN MODE RESTRICTED ---------- ------------------------------ ---------- ---------- 2 PDB$SEED READ ONLY NO 3 PDB1 READ WRITE NO 4 CNDBA READ WRITE NO 5 HUAINING READ WRITE NO 6 AHDBA READ WRITE NO SQL> drop pluggable database huaining; drop pluggable database huaining * ERROR at line 1: ORA-65179: cannot keep datafiles for a pluggable database that is not unplugged SQL> !oerr ora 65179 65179, 00000, "cannot keep datafiles for a pluggable database that is not unplugged" // *Cause: An attempt was made to drop a pluggable database without // specifying the INCLUDING DATAFILES clause, and the pluggable // database has not been unplugged. // *Action: Unplug the pluggable database before dropping the pluggable // database or use the INCLUDING DATAFILES clause in the // DROP PLUGGABLE DATABASE statement. // SQL> drop pluggable database huaining including datafiles; Pluggable database dropped. SQL> show pdbs CON_ID CON_NAME OPEN MODE RESTRICTED ---------- ------------------------------ ---------- ---------- 2 PDB$SEED READ ONLY NO 3 PDB1 READ WRITE NO 4 CNDBA READ WRITE NO 6 AHDBA READ WRITE NO SQL> 作業系統層面看，對應的檔案，也一起刪除了：[oracle@Ora12c huaining]$ pwd /u01/app/oracle/oradata/dave/huaining[oracle@Ora12c huaining]$ ls[oracle@Ora12c huaining]$
如果是使用KEEP datafiles，那麼在執行drop 之前，必須先執行unplug的操作。
SQL> drop pluggable database ahdba keep datafiles; drop pluggable database ahdba keep datafiles * ERROR at line 1: ORA-65179: cannot keep datafiles for a pluggable database that is not unplugged SQL> alter pluggable database ahdba unplug into '/tmp/ahdba.xml'; Pluggable database altered. SQL> drop pluggable database ahdba keep datafiles; Pluggable database dropped.
刪除成功。