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由于服务器断电，启动 oracle 时报ORA-00600 错误

查看 oracletrace 日志

1.执行 sqlplus 登录 oracle

sqlplus / as sysdba

sql> startup
ORACLE instance started.

Total System Global Area 583008256 bytes
Fixed Size 2022504 bytes
Variable Size 184550296 bytes
Database Buffers 394264576 bytes
Redo Buffers 2170880 bytes
Database mounted.
ORA-00607: Internal error occurred while making a change to a data block
ORA-00600: internal error code,arguments: [4194],[22],[39],[],[]

3. 找到 alert 日志

执行

sql>show parameter dump

4. 查看 alert 日志

cd /opt/oracle/app/diag/rdbms/orcl/orcl/trace/
less alert_orcl.log

大概报错信息如下：

============================== 开始修复==============================

5. 设置undo表空间的管理方式为：手工，缺省undotbs 为空，实际上使用了 system 回滚段。

sql> alter system set undo_management = manual scope=spfile;
System altered.
sql> alter system set undo_tablespace='' scope=spfile;
System altered.
sql> startup force
ORACLE instance started.
Total System Global Area 583008256 bytes
Fixed Size 2022504 bytes
Variable Size 184550296 bytes
Database Buffers 394264576 bytes
Redo Buffers 2170880 bytes
Database mounted.
Database opened.

6.查询原始 undo 表空间路径

sql> select file_name,tablespace_name from dba_data_files;

sql> create undo tablespace undotbs2 datafile '/opt/oracle/app/oradata/orcl/undotbs2.dbf' size 100M;

sql> alter system set undo_management =auto scope=spfile;

System altered.

sql> alter system set undo_tablespace = undotbs2 scope=spfile;

System altered.

sql> drop tablespace undotbs02 including contents and datafiles;

Tablespace dropped.

sql> startup force;
ORACLE instance started.

Total System Global Area 583008256 bytes
Fixed Size 2022504 bytes
Variable Size 234881944 bytes
Database Buffers 343932928 bytes
Redo Buffers 2170880 bytes
Database mounted.
Database opened.