ORA-01552 非系统表空间不能使用系统回滚段处理


ORA-01552: cannot use system rollback segment for...错误解决
    
故障现象：
今天本要做数据库的不完全恢复，但是在准备环境的时候需要创建几张表做为恢复用的基表。在创建表的时候
就报了如下一段错误：
13:56:03 SQL> create table wwl001 (id number,name varchar(12));
create table wwl001 (id number,name varchar(12))
*
ERROR at line 1:
ORA-01552: cannot use system rollback segment for non-system tablespace 'WWL'；

!!!!　非系统表空间'WWL'不能使用系统回滚段

问题原因：
我昨天做了由于磁盘损坏导致数据库灾难的恢复，可能是由于恢复的时候参数文件修改了，所以才导致成回滚段
变成了手动管理模式，我们可以看看如下步骤：

详情：

１、创建表，非系统表空间不能使用回滚段
13:56:03 SQL> create table wwl001 (id number,name varchar(12));
create table wwl001 (id number,name varchar(12))
*
ERROR at line 1:
ORA-01552: cannot use system rollback segment for non-system tablespace 'WWL'；

2、查看回滚段管理方式，为手动管理
13:57:24 SQL> show parameter undo

NAME                                 TYPE        VALUE
------------------------------------ ----------- ------------------------------
undo_management                      string      MANUAL
undo_retention                       integer     900
undo_tablespace                      string      UNDOTBS1

3、查看回滚段状态
13:57:23 SQL> select segment_name, tablespace_name, status from dba_rollback_segs;

SEGMENT_NAME                   TABLESPACE_NAME                STATUS
------------------------------ ------------------------------ ----------------
SYSTEM                         SYSTEM                         ONLINE
_SYSSMU1$                      UNDOTBS1                       OFFLINE
_SYSSMU2$                      UNDOTBS1                       OFFLINE
_SYSSMU3$                      UNDOTBS1                       OFFLINE
_SYSSMU4$                      UNDOTBS1                       OFFLINE
_SYSSMU5$                      UNDOTBS1                       OFFLINE
_SYSSMU6$                      UNDOTBS1                       OFFLINE
_SYSSMU7$                      UNDOTBS1                       OFFLINE
_SYSSMU8$                      UNDOTBS1                       OFFLINE
_SYSSMU9$                      UNDOTBS1                       OFFLINE
_SYSSMU10$                     UNDOTBS1                       OFFLINE

11 rows selected.

4、针对现象修改undo_management参数为auto即可。

14:08:06 SQL> alter system set undo_management=auto scope=spfile;

System altered.

14:17:51 SQL> shutdown immediate
Database closed.
Database dismounted.
Oracle instance shut down.
14:18:22 SQL> startup
ORACLE instance started.

Total System Global Area  100663296 bytes
Fixed Size                  1217884 bytes
Variable Size              88083108 bytes
Database Buffers            8388608 bytes
Redo Buffers                2973696 bytes
Database mounted.
Database opened.

5、查看回滚段状态
14:18:55 SQL> select segment_name, tablespace_name, status from dba_rollback_segs;

SEGMENT_NAME                   TABLESPACE_NAME                STATUS
------------------------------ ------------------------------ ----------------
SYSTEM                         SYSTEM                         ONLINE
_SYSSMU1$                      UNDOTBS1                       ONLINE
_SYSSMU2$                      UNDOTBS1                       ONLINE
_SYSSMU3$                      UNDOTBS1                       ONLINE
_SYSSMU4$                      UNDOTBS1                       ONLINE
_SYSSMU5$                      UNDOTBS1                       ONLINE
_SYSSMU6$                      UNDOTBS1                       ONLINE
_SYSSMU7$                      UNDOTBS1                       ONLINE
_SYSSMU8$                      UNDOTBS1                       ONLINE
_SYSSMU9$                      UNDOTBS1                       ONLINE
_SYSSMU10$                     UNDOTBS1                       ONLINE

11 rows selected.

6、我们再执行刚才的建表语句，非常好，可以创建表了。
14:19:51 SQL> create table wwl001 (id number,name varchar(12));

Table created.

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