Oracle19c 歸檔模式開啓與關閉
oracle19c的歸檔模式必須在容器數據庫(cdb)一級開啓,開啓後,全部pdb啓用歸檔模式;
1、開啓歸檔流程
以SYS用戶連接Oracle 12c 數據庫
sqlplus / as sysdba
關閉數據庫。
shutdown immediate;
加載數據庫到MOUNT狀態。
startup mount;
查看歸檔模式
archive log list;
查看pdb列表
show pdbs;
切換到pdb
alter session set container=pdb1;
查看pdb歸檔模式
archive log list;
切換到容器數據庫
alter session set container=cdb$root;
開啓日誌歸檔模式
alter database archivelog;
查看歸檔模式
archive log list;
打開數據庫
alter database open;
切換到pdb
alter session set container=pdb1;
查看歸檔模式
archive log list;
打開pdb數據庫
alter pluggable database pdb1 open;
2、開啓歸檔模式
[oracle@localhost ~]$ sqlplus / as sysdba
SQL*Plus: Release 19.0.0.0.0 - Production on Fri Jul 3 09:32:05 2020
Version 19.3.0.0.0
Copyright (c) 1982, 2019, Oracle. All rights reserved.
Connected to:
Oracle Database 19c Enterprise Edition Release 19.0.0.0.0 - Production
Version 19.3.0.0.0
SQL> shutdown immediate;
Database closed.
Database dismounted.
ORACLE instance shut down.
SQL> startup mount;
ORACLE instance started.
Total System Global Area 1027600648 bytes
Fixed Size 9142536 bytes
Variable Size 264241152 bytes
Database Buffers 746586112 bytes
Redo Buffers 7630848 bytes
Database mounted.
SQL> archive log list;
Database log mode No Archive Mode
Automatic archival Disabled
Archive destination /u01/app/oracle/product/19.3.0/dbhome_1/dbs/arch
Oldest online log sequence 9
Current log sequence 11
SQL> show pdbs;
CON_ID CON_NAME OPEN MODE RESTRICTED
---------- ------------------------------ ---------- ----------
2 PDB$SEED MOUNTED
3 PDB1 MOUNTED
SQL> alter session set container=pdb1;
Session altered.
SQL> archive log list;
Database log mode No Archive Mode
Automatic archival Disabled
Archive destination /u01/app/oracle/product/19.3.0/dbhome_1/dbs/arch
Oldest online log sequence 9
Current log sequence 11
SQL> alter session set container=cdb$root;
Session altered.
SQL> alter database archivelog;
Database altered.
SQL> archive log list;
Database log mode Archive Mode
Automatic archival Enabled
Archive destination /u01/app/oracle/product/19.3.0/dbhome_1/dbs/arch
Oldest online log sequence 9
Next log sequence to archive 11
Current log sequence 11
SQL> alter database open;
Database altered.
SQL> alter session set container=pdb1;
Session altered.
SQL> archive log list;
Database log mode Archive Mode
Automatic archival Enabled
Archive destination /u01/app/oracle/product/19.3.0/dbhome_1/dbs/arch
Oldest online log sequence 9
Next log sequence to archive 11
Current log sequence 11
SQL> alter pluggable database pdb1 open;
Pluggable database altered.
SQL>
3、關閉歸檔模式
[oracle@localhost ~]$ sqlplus / as sysdba
SQL*Plus: Release 19.0.0.0.0 - Production on Fri Jul 3 08:38:02 2020
Version 19.3.0.0.0
Copyright (c) 1982, 2019, Oracle. All rights reserved.
Connected to an idle instance.
SQL> startup mount;
ORACLE instance started.
Total System Global Area 1027600648 bytes
Fixed Size 9142536 bytes
Variable Size 264241152 bytes
Database Buffers 746586112 bytes
Redo Buffers 7630848 bytes
Database mounted.
SQL> archive log list;
Database log mode Archive Mode
Automatic archival Enabled
Archive destination /u01/app/oracle/product/19.3.0/dbhome_1/dbs/arch
Oldest online log sequence 9
Next log sequence to archive 11
Current log sequence 11
SQL> alter database noarchivelog;
Database altered.
SQL> archive log list;
Database log mode No Archive Mode
Automatic archival Disabled
Archive destination /u01/app/oracle/product/19.3.0/dbhome_1/dbs/arch
Oldest online log sequence 9
Current log sequence 11
SQL> alter database open;
Database altered.
SQL> show pdbs;
CON_ID CON_NAME OPEN MODE RESTRICTED
---------- ------------------------------ ---------- ----------
2 PDB$SEED READ ONLY NO
3 PDB1 MOUNTED
SQL> alter pluggable database pdb1 open;
Pluggable database altered.
SQL> alter session set container = pdb1;
Session altered.
SQL> archive log list;
Database log mode No Archive Mode
Automatic archival Disabled
Archive destination /u01/app/oracle/product/19.3.0/dbhome_1/dbs/arch
Oldest online log sequence 9
Current log sequence 11
SQL>