惜分飞

又一客户,误删除oracle redo导致数据库无法正常启动,自己尝试重建ctl,结果遗漏部分oracle数据文件并且尝试过resetlogs,导致部分文件resetlogs scn不一致.导致重建ctl失败

Fri Feb 10 12:41:20 2023
CREATE CONTROLFILE REUSE DATABASE "orcl" RESETLOGS  NOARCHIVELOG
    MAXLOGFILES 50
    MAXLOGMEMBERS 5
    MAXDATAFILES 100
    MAXINSTANCES 8
    MAXLOGHISTORY 226
LOGFILE
  GROUP 1 'H:\BaiduNetdisk\couga/redo01.log'  SIZE 50M,
  GROUP 2 'H:\BaiduNetdisk\couga/redo02.log'  SIZE 50M,
  GROUP 3 'H:\BaiduNetdisk\couga/redo03.log'  SIZE 50M
DATAFILE
'H:\BaiduNetdisk\couga\system01.dbf',
'H:\BaiduNetdisk\couga\cougaerp.DBF',
'H:\BaiduNetdisk\couga\cougajh.DBF',
'H:\BaiduNetdisk\couga\example01.dbf',
'H:\BaiduNetdisk\couga\sysaux01.dbf',
'H:\BaiduNetdisk\couga\undotbs01.dbf',
'H:\BaiduNetdisk\couga\users01.dbf'
CHARACTER SET zhs16gbk
WARNING: Default Temporary Tablespace not specified in CREATE DATABASE command
Default Temporary Tablespace will be necessary for a locally managed database in future release
Errors in file c:\app\xff\diag\rdbms\orcl\orcl11\trace\orcl11_ora_4132.trc:
ORA-01189: ????????????? RESETLOGS
ORA-01110: ???? 6: 'H:\BaiduNetdisk\couga\cougajh.DBF'

通过OraRecovery工具修改相关异常文件头resetlogs scn之后,重建ctl成功

Fri Feb 10 12:46:04 2023
SMON: enabling cache recovery
ORA-01555 caused by SQL statement below (SQL ID: 4krwuz0ctqxdt, SCN: 0x0000.09dab82d):
select ctime, mtime, stime from obj$ where obj# = :1
Errors in file c:\app\xff\diag\rdbms\orcl\orcl11\trace\orcl11_ora_7088.trc:
ORA-00704: 引导程序进程失败
ORA-00704: 引导程序进程失败
ORA-00604: 递归 SQL 级别 1 出现错误
ORA-01555: 快照过旧: 回退段号 5 (名称为 "_SYSSMU5_1527469038$") 过小
Errors in file c:\app\xff\diag\rdbms\orcl\orcl11\trace\orcl11_ora_7088.trc:
ORA-00704: 引导程序进程失败
ORA-00704: 引导程序进程失败
ORA-00604: 递归 SQL 级别 1 出现错误
ORA-01555: 快照过旧: 回退段号 5 (名称为 "_SYSSMU5_1527469038$") 过小
Error 704 happened during db open, shutting down database
USER (ospid: 7088): terminating the instance due to error 704

通过类似方法处理:
在数据库open过程中常遇到ORA-01555汇总
数据库open过程遭遇ORA-1555对应sql语句补充
顺利open数据库，并且逻辑方式导出数据,完成恢复