備份前先設定成歸檔模式

小亮520cl發表於2013-09-16

1,檢視當前歸檔模式

  SQL> archive log list;

  Database log mode No Archive Mode

  Automatic archival Disabled

  Archive destination USE_DB_RECOVERY_FILE_DEST

  Oldest online log sequence 210

  Current log sequence 212

  2,重啟資料庫到mount狀態

  SQL> shutdown immediate;

  Database closed.

  Database dismounted.

  ORACLE instance shut down.

  SQL> startup mount;

  ORACLE instance started.

  Total System Global Area 6442450944 bytes

  Fixed Size 2030368 bytes

  Variable Size 1358955744 bytes

  Database Buffers 5066719232 bytes

  Redo Buffers 14745600 bytes

  Database mounted.

  3,開啟歸檔模式

  SQL> alter database archivelog;

  Database altered.

  4,開啟資料庫

  SQL> alter database open;

  Database altered.

  SQL> archive log list;

  Database log mode Archive Mode

  Automatic archival Enabled

  Archive destination USE_DB_RECOVERY_FILE_DEST

  Oldest online log sequence 210

  Next log sequence to archive 212

  Current log sequence 212

  SQL> archive log start;

  Statement processed.

  5,關閉歸檔模式的步驟

  SQL> startup mount;

  SQL> alter database noarchivelog;

  SQL> alter database open;

  6,9i和10g的區別

  9i中需要修改初始化引數

  log_archive_start = true

  10g中已經廢棄該引數


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