详谈Oracle12c新特点容器数据库&可插拔数据库(CDB&PDB)
一般信息
数据字典 |
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角色 |
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系统权限 |
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探究SEED PDB |
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从PDB$SEED创建PDB |
语法: CREATE PLUGGABLE DATABASE ADMIN USER IDENTIFIED BY FILE_NAME_CONVERT = ('', '') ROLES = () DEFAULT TABLESPACE [DATAFILE ] EXTENT MANAGEMENT LOCAL <autoallocate |="" uniform="" size="" > STORAGE ]; 例子: |
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col con_name format a10 col restricted format a10 SELECT v.name, v.open_mode, v.restricted, d.status FROM v$pdbs v, dba_pdbs d WHERE v.guid = d.guid ORDER BY v.create_scn; NAME OPEN_MODE RESTRICTED STATUS ------------------------------ ---------- ---------- ------------- PDB$SEED READ ONLY NO NORMAL ALTER PLUGGABLE DATABASE pdb1 OPEN; SELECT v.name, v.open_mode, v.restricted, d.status FROM v$pdbs v, dba_pdbs d WHERE v.guid = d.guid ORDER BY v.create_scn; NAME OPEN_MODE RESTRICTED STATUS ------------------------------ ---------- ---------- ------------- PDB$SEED READ ONLY NO NORMAL SELECT * FROM dba_pdbs; -- 12.1.0.1 version -- SELECT * FROM cdb$view(dba_pdbs); -- 12.1.0.2 versionSELECT * FROM containers(dba_pdbs); -- 12.1.0.1 version -- SELECT * FROM cdb$view(cdb_pdbs); -- 12.1.0.2 version SELECT * FROM containers(cdb_pdbs); SELECT table_name, tablespace_name, con_id FROM containers(dba_tables) WHERE rownum < 6; |
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CREATE PLUGGABLE DATABASE pdb1 ADMIN USER TEST IDENTIFIED BY TEST FILE_NAME_CONVERT = ('/pdbseed/', '/pdb1/'); SELECT v.name, v.open_mode, NVL(v.restricted, 'n/a') RESTRICTED, d.status FROM v$pdbs v, dba_pdbs d WHERE v.guid = d.guid ORDER BY v1; NAME OPEN_MODE RESTRICTED STATUS ------------------------------ ---------- ---------- ------------- PDB1 MOUNTED NO NORMAL PDB$SEED READ ONLY NO NORMAL ALTER SESSION SET CONTAINER=pdb1; sho con_name CON_NAME ------------------- PDB1 ALTER PLUGGABLE DATABASE pdb1 OPEN; SELECT COUNT(*)FROM dba_tables; |
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探究数据文件 |
desc dba_data_files desc cdb_data_files SELECT file_name, tablespace_name, online_status FROM dba_data_files; SELECT file_name, tablespace_name, online_status, con_id FROM cdb_data_files; |
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探究用户 |
desc dba_users desc cdb_users SELECT username, account_status, lock_date, expiry_date FROM dba_users ORDER BY 1; SELECT username, default_tablespace, temporary_tablespace FROM dba_users ORDER BY 1; SELECT username, default_tablespace, temporary_tablespace, con_id FROM cdb_users ORDER BY 1; SELECT username, default_tablespace, temporary_tablespace, con_id FROM cdb_users WHERE username like 'TE%' ORDER BY 1; ALTER PLUGGABLE DATABASE pdb1 OPEN; SELECT v.name, v.open_mode, NVL(v.restricted, 'n/a') "RESTRICTED", d.status FROM v$pdbs v, dba_pdbs d WHERE v.guid = d.guid ORDER BY v.create_scn; NAME OPEN_MODE RESTRICTED STATUS ------------------------------ ---------- ---------- ------------- PDB$SEED READ ONLY NO NORMAL PDB1 READ WRITE NO NORMAL SELECT username, default_tablespace, temporary_tablespace, con_id FROM cdb_users WHERE username like 'TE%' ORDER BY 1; |
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连接创建PDB |
SQL> conn sys@pdb1 as sysdba Enter password: *********Connected. SQL> GRANT create session TO TEST; Grant succeeded. SQL> SELECT COUNT(*) FROM cdb_sys_privs; COUNT(*) 0 SQL> SELECT COUNT(*) FROM dba_sys_privs; COUNT(*) 987 SQL> SELECT privilege, admin_option, common FROM dba_sys_privs WHERE grantee = 'TEST'; PRIVILEGE ADM COM ---------------------------------------- --- --- CREATE SESSION NO NO col grantee format a30 col granted_role format a30 SELECT * FROM dba_role_privs WHERE grantee = 'TEST'; GRANTEE GRANTED_ROLE ADM DEF COM ------------------------------ ------------------------------ --- --- --- TEST PDB_DBA YES YES NO |
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克隆PDB |
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从一个容器现有PDB克隆新的PDB |
语法: CREATE PLUGGABLE DATABASE FROM FILE_NAME_CONVERT=('', '<path');< span="" style="word-wrap: break-word;"> 例子: |
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ALTER PLUGGABLE DATABASE pdb1 CLOSE; ALTER PLUGGABLE DATABASE pdb1 OPEN READ ONLY; CREATE OR REPLACE VIEW pdb_status AS SELECT v.name, v.open_mode, NVL(v.restricted, 'n/a') "RESTRICTED", d.status FROM v$pdbs v, dba_pdbs d WHERE v.guid = d.guid ORDER BY v.create_scn; SELECT * FROM pdb_status; NAME OPEN_MODE RESTRICTED STATUS ------------------------------ ---------- ---------- ------------- PDB$SEED READ ONLY NO NORMAL PDB1 READ ONLY NO NORMAL CREATE PLUGGABLE DATABASE pdb1_t FROM pdb1FILE_NAME_CONVERT = ('\uwpdb\', '\uwpdbd\'); SELECT * FROM pdb_status; NAME OPEN_MODE RESTRICTED STATUS ------------------------------ ---------- ---------- ------------- PDB$SEED READ ONLY NO NORMAL PDB1 READ ONLY NO NORMAL |
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创建时的UNPLUG/PLUGPDB |
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Unplug 子句 |
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Unplug 子句 从unplugged创建 |
语法: ALTER PLUGGABLE DATABASE UNPLUG INTO ''; 例子: |
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conn / as sysdba ALTER PLUGGABLE DATABASE pdb1 CLOSE; ALTER PLUGGABLE DATABASE pdb1 UNPLUG INTO 'pdb1.xml'; -- 将文件ftp到新服务器 -- the xml 文件在 $ORACLE_HOME/database下 SQL> CREATE PLUGGABLE DATABASE pdb2 USING 'pdb1.xml' SOURCE_FILE_NAME_CONVERT = ('\pdb1\', '\pdb2\') NOCOPY STORAGE (MAXSIZE 1G MAX_SHARED_TEMP_SIZE 20M) TEMPFILE REUSE; |
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更改PDB |
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设置子句 |
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默认版本 |
语法: ALTER PLUGGABLE DATABASE 例子: |
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conn / as sysdba ALTER SESSION SET CONTAINER = pdb1; CREATE EDITION test_ed; ALTER PLUGGABLE DATABASE pdb1 DEFAULT EDITION = test_ed; |
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默认表空间 |
语法: ALTER PLUGGABLE DATABASE DEFAULT TABLESPACE ; 例子: |
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conn / as sysdba ALTER SESSION SET CONTAINER = pdb1; SELECT tablespace_nameFROM dba_tablespaces; ALTER PLUGGABLE DATABASE pdb1 DEFAULT TABLESPACE oradata; |
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默认表空间类型 |
ALTER PLUGGABLE DATABASE SET DEFAULT TABLESPACE; |
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conn / as sysdba ALTER SESSION SET CONTAINER = pdb1; ALTER PLUGGABLE DATABASE pdb1 SET DEFAULT BIGFILE TABLESPACE; |
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默认临时表空间 |
ALTER PLUGGABLE DATABASE DEFAULT TEMPORARY TABLESPACE ;; |
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conn / as sysdba ALTER SESSION SET CONTAINER = pdb1; ALTER PLUGGABLE DATABASE pdb1 DEFAULT TEMPORARY TABLESPACEtemp_grp; |
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重命名 |
语法: ALTER PLUGGABLE DATABASE RENAME GLOBAL_NAME TO [.domain]; 例子: |
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conn / as sysdba ALTER SESSION SET CONTAINER = pdb1; SELECT *FROM global_name; ALTER PLUGGABLE DATABASE pdb1 RENAME GLOBAL_NAME TO pdb$dev; |
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PDB内设置时区 |
语法: ALTER PLUGGABLE DATABASE [] SET TIME_ZONE = ''; ALTER PLUGGABLE DATABASE SET TIME_ZONE = '< | -> HH:MI'; 例子: |
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conn sys@pdb1 as sysdba ALTER SESSION SET CONTAINER = pdb1; SELECT value$ FROM props$ WHERE name = 'DBTIMEZONE'; ALTER PLUGGABLE DATABASE pdb1 SET TIME_ZONE = 'Japan'; SELECT value$FROM props$WHERE name = 'DBTIMEZONE'; ALTER PLUGGABLE DATABASE pdb1 SET TIME_ZONE = '00:00'; SELECT value$FROM props$WHERE name = 'DBTIMEZONE'; |
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数据文件重命名 |
语法: ALTER PLUGGABLE DATABASE RENAME FILE '' TO ''; |
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例子: conn sys@pdb1 as sysdba ALTER PLUGGABLE DATABASE CLOSE; RENAME FILE 'C:\APP\ORACLE\ORADATA\PDB1\PDB11.DBF' TO 'C:\APP\ORACLE\ORADATA\PDB1\PDB101.DBF'; --原数据文件需手工去除 |
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创建数据文件 |
ALTER PLUGGABLE DATABASE CREATE DATAFILE <'' | filenumber> [AS | NEW] |
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更改数据文件 |
ALTER PLUGGABLE DATABASE DATAFILE <'' | filenumber> <online |="" offline="" [for="" drop]="" resize="" | | END BACKUP>; |
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更改临时文件 |
ALTER PLUGGABLE DATABASE TEMPFILE <'' | filenumber> <resize |="" | DROP [INCLUDING DATAFILES] | ONLINE | OFFLINE>; |
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移除数据文件 |
ALTER PLUGGABLE DATABASE MOVE DATAFILE <'' | ASM_file_name | filenumber>TO '' [REUSE] [KEEP] |
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补充日志 |
语法: ALTER PLUGGABLE DATABASE SUPPLEMENTAL LOG <data |="" | > 例子: |
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ALTER PLUGGABLE DATABASE pdb1 ADD SUPPLEMENTAL LOG DATA; |
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存储参数 |
语法: ALTER PLUGGABLE DATABASE STORAGE <unlimited |="" >; 例子: |
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ALTER PLUGGABLE DATABASE pdb1 STORAGE UNLIMITED; |
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例子: ALTER PLUGGABLE DATABASE STORAGE (MAX_SHARED_TEMP_SIZE <unlimited |="" ); 例子: |
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ALTER PLUGGABLE DATABASE pdb1 STORAGE (MAX_SHARED_TEMP_SIZE UNLIMITED); |
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Datafile子句 |
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数据文件联机/脱机 |
语法: ALTER PLUGGABLE DATABASE DATAFILE ALL ; |
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例子: conn / as sysdba ALTER SESSION SET CONTAINER = pdb1; ALTER PLUGGABLE DATABASE pdb1 CLOSE; SELECT open_modeFROM v$pdbs; SELECT file#, status, enabledFROM v$datafile; ALTER PLUGGABLE DATABASE pdb1 DATAFILE ALL OFFLINE; ALTER PLUGGABLE DATABASE pdb1 DATAFILE ALL ONLINE; SELECT file#, status, enabledFROM v$datafile; ALTER PLUGGABLE DATABASE pdb1 OPEN; |
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Recovery子句 |
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备份和恢复PDB |
语法: ALTER PLUGGABLE DATABASE RECOVER [AUTOMATIC] [FROM '' DATABASE;例子: |
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ALTER PLUGGABLE DATABASE pdb1 RECOVER AUTOMATIC DATABASE; |
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语法: ALTER PLUGGABLE DATABASE BACKUP; 例子: |
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conn / as sysdba SHUTDOWN IMMEDIATE; STARTUP MOUNT; ALTER DATABASE ARCHIVELOG; ALTER DATABASE OPEN; ALTER PLUGGABLE DATABASE pdb1 OPEN; ALTER SESSION SET CONTAINER = PDB1; ALTER PLUGGABLE DATABASE pdb1 BEGIN BACKUP; ALTER PLUGGABLE DATABASE pdb1 END BACKUP; |
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Change 子句 |
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读写模式打开 |
语法: ALTER PLUGGABLE DATABASE OPEN READ [WRITE] [UPGRADE] [RESTRICTED] [FORCE][INSTANCES = <('' | )] >); 例子: |
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ALTER PLUGGABLE DATABASE pdb1 OPEN; |
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只读模式打开 |
语法: ALTER PLUGGABLE DATABASE OPEN READ ONLY ; 例子: |
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ALTER PLUGGABLE DATABASE pdb1 OPEN READ ONLY; |
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Resetlogs模式打开 |
语法: ALTER PLUGGABLE DATABASE OPEN RESETLOGS ; 例子: |
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ALTER PLUGGABLE DATABASE pdb1 OPEN RESETLOGS; |
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打开/关闭PDB |
语法: ALTER PLUGGABLE DATABASE CLOSE [IMMEDIATE]; |
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例子: ALTER PLUGGABLE DATABASE pdb1 CLOSE; |
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打开/关闭所有PDB |
语法: ALTER PLUGGABLE DATABASE ALL CLOSE [IMMEDIATE]; |
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例子: ALTER PLUGGABLE DATABASE ALL CLOSE; |
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只读模式打开PDB |
语法: ALTER PLUGGABLE DATABASE READ ONLY; 例子: |
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conn / as sysdba ALTER PLUGGABLE DATABASE pdb1 OPEN READ ONLY; |
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以READ ONLY RESTRICTED模式打开PDB |
语法: ALTER PLUGGABLE DATABASE OPEN READ ONLY RESTRICTED; 例子: |
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conn / as sysdbaALTER PLUGGABLE DATABASE pdb1 CLOSE;ALTER PLUGGABLE DATABASE pdb1 OPEN READ ONLY RESTRICTED; |
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移除PDB |
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从容器中删除PDB |
语法: DROP PLUGGABLE DATABASE [INCLUDING DATAFILES]; 例子: |
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ALTER PLUGGABLE DATABASE pdb1 CLOSE;DROP PLUGGABLE DATABASE pdb1 INCLUDING DATAFILES; |
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