oracle 10g dataguard備庫切換時，ORA-16139錯誤的解決辦法

oracle 10g dataguard備庫切換時，ORA-16139錯誤的解決辦法


Maximum Protection Mode下，將備庫切換到主庫報錯：
SQL> ALTER DATABASE COMMIT TO SWITCHOVER TO PRIMARY;
ALTER DATABASE COMMIT TO SWITCHOVER TO PRIMARY
*
ERROR at line 1:
ORA-16139: media recovery required


解決辦法，只需在備庫上開啓日誌應用即可：
SQL> ALTER DATABASE RECOVER MANAGED STANDBY DATABASE DISCONNECT FROM SESSION;
Database altered.
SQL> ALTER DATABASE COMMIT TO SWITCHOVER TO PRIMARY;
Database altered.
SQL> alter database open;
Database altered.
SQL>