64.Oracle19cPDB的创建和删除

1.创建PDB

CREATE PLUGGABLE DATABASE DB_CROSS
  ADMIN USER pdbadmin IDENTIFIED BY enmo#2023
  ROLES = (dba)
  DEFAULT TABLESPACE CROSS_TBS 
    DATAFILE '/chac/app/oradata/CROSS/DB_CROSS/cross01.dbf' SIZE 250M AUTOEXTEND ON
  FILE_NAME_CONVERT = ('/chac/app/oradata/CROSS/pdbseed/',
                       '/chac/app/oradata/CROSS/DB_CROSS/')
  PATH_PREFIX = '/chac/app/oradata/CROSS/DB_CROSS/';


SQL> show pdbs; 

    CON_ID CON_NAME			  OPEN MODE  RESTRICTED
---------- ------------------------------ ---------- ----------
	 2 PDB$SEED			  READ ONLY  NO
	 3 CROSSPDB			  READ WRITE NO
	 4 DB_CROSS			  MOUNTED


SQL> alter pluggable database DB_CROSS open read write;

Pluggable database altered.

SQL> show pdbs;

    CON_ID CON_NAME			  OPEN MODE  RESTRICTED
---------- ------------------------------ ---------- ----------
	 2 PDB$SEED			  READ ONLY  NO
	 3 CROSSPDB			  READ WRITE NO
	 4 DB_CROSS			  READ WRITE NO



[oracle@c-ross-test-database-01-20231215 DB_CROSS]$ ll
总用量 1034332
-rw-r----- 1 oracle oinstall 471867392 12月 18 15:06 sysaux01.dbf
-rw-r----- 1 oracle oinstall 377495552 12月 18 15:06 system01.dbf
-rw-r----- 1 oracle oinstall  93331456 12月 18 15:06 temp012023-12-18_13-26-17-577-PM.dbf
-rw-r----- 1 oracle oinstall 209723392 12月 18 15:06 undotbs01.dbf

SQL> select TABLESPACE_NAME from dba_tablespaces;

TABLESPACE_NAME
------------------------------------------------------------
SYSTEM
SYSAUX
UNDOTBS1
TEMP
CROSS_TBS

注意事项:

创建PDB时需要指定PDB里面一个管理用户,同时指定用户使用的表空间。种子数据库的路径和新的PDB的路径。

2.删除PDB

--先关闭数据库,然后删除。关闭后是mount状态可以删除。
alter pluggable database db_cross close; 

SQL>  drop pluggable database db_cross including datafiles;

Pluggable database dropped.

3.创建自定义用户并授予权限。

alter session set container=DB_CROSS;
create user cross identified by enmo#2023;
alter user cross default tablespace cross_tbs;
grant create session ,connect,resource,unlimited tablespace  to cross;