oracle--错误笔记(一)

一,环境模拟　

SQL> select status from v$instance;

STATUS
------------
OPEN

SQL>  select * from v$backup;

     FILE# STATUS         CHANGE# TIME
---------- ------------------ ---------- ---------
      NOT ACTIVE
      NOT ACTIVE
      NOT ACTIVE
      NOT ACTIVE          -APR-
      NOT ACTIVE               

SQL> select sysdate from dual;

SYSDATE
---------
-APR-

SQL> ALTER TABLESPACE TEST1 BEGIN BACKUP;
Tablespace altered.

二,问题查看

SQL> shutdown immediate;
ORA-: cannot shutdown - file  has online backup set
ORA-: data file : '/u01/app/oracle/oradata/oracle01/users01.dbf'
SQL> shutdown abort;
ORACLE instance shut down.
SQL> startup
ORACLE instance started.

Total System Global Area  bytes
Fixed Size             bytes
Variable Size           bytes
Database Buffers      bytes
Redo Buffers            bytes
Database mounted.
ORA-: file  needs to be either taken out of backup mode or media
recovered
ORA-: data file : '/u01/app/oracle/oradata/oracle01/users01.dbf'

SQL>  select * from v$backup;

     FILE# STATUS         CHANGE# TIME
---------- ------------------ ---------- ---------
      NOT ACTIVE
      NOT ACTIVE
      NOT ACTIVE
      ACTIVE          -APR-
      NOT ACTIVE               

SQL>  select * from v$backup where STATUS='ACTIVE';

     FILE# STATUS         CHANGE# TIME
---------- ------------------ ---------- ---------
      ACTIVE          -APR-19
数据库启动不起来,表示一直再联机备份

三,问题处理

01方法:
SQL> ALTER TABLESPACE users01 end backup;
02方法:
SQL> startup mount
ORACLE instance started.

Total System Global Area  bytes
Fixed Size             bytes
Variable Size           bytes
Database Buffers      bytes
Redo Buffers            bytes
Database mounted.
SQL> alter database end backup;

Database altered.

SQL> alter database open;

Database altered.

SQL> select status from v$instance;

STATUS
------------
OPEN