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有一个朋友自己想测试只用system文件open库,闲着没事给他测试了下,顺利open成功（主要还是经验比较多,规避了很多坑）
1. 准备参数文件
*.audit_file_dest='C:\app\XFF\admin\ORCL\adump' *.audit_trail='none' *.compatible='11.2.0.3.0' *.control_files='H:\TEMP\11203\control01.ctl' *.db_block_size=8192 *.db_domain='' *.db_name='DBM' *.diagnostic_dest='C:\app\XFF' *.dispatchers='(PROTOCOL=TCP) (SERVICE=ORCLXDB)' *.nls_language='SIMPLIFIED CHINESE' *.nls_territory='CHINA' *.open_cursors=300 *.pga_aggregate_target=2147483648 *.processes=150 *.remote_login_passwordfile='EXCLUSIVE' *.sessions=170 *.sga_target=6442450944 *.undo_tablespace='UNDOTBS1' undo_management=MANUAL _corrupted_rollback_segments= _allow_resetlogs_corruption=true
2. 准备重建ctl语句
CREATE CONTROLFILE REUSE DATABASE "DBM" RESETLOGS NOARCHIVELOG
MAXLOGFILES 50
MAXLOGMEMBERS 5
MAXDATAFILES 100
MAXINSTANCES 8
MAXLOGHISTORY 226
LOGFILE
GROUP 1 'H:\TEMP\11203\redo01.log' SIZE 50M,
GROUP 2 'H:\TEMP\11203\redo02.log' SIZE 50M,
GROUP 3 'H:\TEMP\11203\redo03.log' SIZE 50M
DATAFILE
'H:\TEMP\11203\system01.dbf'
CHARACTER SET ZHS16GBK
;
3. 重建ctl并且resetogs open库
SQL> recover database using backup controlfile until cancel;
ORA-00279: 更改 40438873410 (在 10/21/2022 14:06:16 生成) 对于线程 1 是必需的
ORA-00289: 建议:
C:\APP\XFF\PRODUCT\11.2.0.3\DBHOME_1\RDBMS\ARC0000000093_1118545292.0001
ORA-00280: 更改 40438873410 (用于线程 1) 在序列 #93 中
指定日志: {<RET>=suggested | filename | AUTO | CANCEL}
cancel
ORA-01547: 警告: RECOVER 成功但 OPEN RESETLOGS 将出现如下错误
ORA-01194: 文件 1 需要更多的恢复来保持一致性
ORA-01110: 数据文件 1: 'H:\TEMP\11203\SYSTEM01.DBF'
ORA-01112: 未启动介质恢复
SQL> alter database open resetlogs;
alter database open resetlogs
*
第 1 行出现错误:
ORA-01092: ORACLE instance terminated. Disconnection forced
ORA-01176: data dictionary has more than the 100 files allowed by the
controlfie
进程 ID: 3952
会话 ID: 14 序列号: 3
MAXDATAFILES值不对修改正确值，重建ctl，open库
SQL> RECOVER DATABASE; 完成介质恢复。 SQL> ALTER DATABASE OPEN; ALTER DATABASE OPEN * 第 1 行出现错误: ORA-01092: ORACLE instance terminated. Disconnection forced ORA-00604: error occurred at recursive SQL level 1 ORA-01555: snapshot too old: rollback segment number with name "" too small 进程 ID: 6916 会话 ID: 14 序列号: 1
alert日志内容
Database Characterset is ZHS16GBK Errors in file C:\APP\XFF\diag\rdbms\dbm\test\trace\test_smon_9384.trc: ORA-00604: 递归 SQL 级别 1 出现错误 ORA-01555: 快照过旧: 回退段号 (名称为 "") 过小 Errors in file C:\APP\XFF\diag\rdbms\dbm\test\trace\test_ora_6916.trc: ORA-00604: 递归 SQL 级别 1 出现错误 ORA-01555: 快照过旧: 回退段号 (名称为 "") 过小 Errors in file C:\APP\XFF\diag\rdbms\dbm\test\trace\test_ora_6916.trc: ORA-00604: 递归 SQL 级别 1 出现错误 ORA-01555: 快照过旧: 回退段号 (名称为 "") 过小 Error 604 happened during db open, shutting down database USER (ospid: 6916): terminating the instance due to error 604 Errors in file C:\APP\XFF\diag\rdbms\dbm\test\trace\test_smon_9384.trc (incident=2521): ORA-00600: 内部错误代码, 参数: [2662], [9], [1784188335], [9], [1784216952], [6019273], [], [], [], [], [], [] Incident details in: C:\APP\XFF\diag\rdbms\dbm\test\incident\incdir_2521\test_smon_9384_i2521.trc Use ADRCI or Support Workbench to package the incident. See Note 411.1 at My Oracle Support for error and packaging details. Non-fatal internal error happenned while SMON was doing temporary segment drop. SMON encountered 1 out of maximum 100 non-fatal internal errors. Tue Nov 01 10:17:49 2022 Instance terminated by USER, pid = 6916 ORA-1092 signalled during: ALTER DATABASE OPEN...
修改文件头scn，并正常open库
SQL> startup nomount pfile='d:/pfile.txt' ORACLE 例程已经启动。 Total System Global Area 6413680640 bytes Fixed Size 2267184 bytes Variable Size 1107298256 bytes Database Buffers 5284823040 bytes Redo Buffers 19292160 bytes SQL> alter database mount; 数据库已更改。 SQL> set numw 16 SQL> col CHECKPOINT_TIME for a40 SQL> set lines 150 SQL> set pages 1000 SQL> SELECT status, 2 to_char(checkpoint_time,'yyyy-mm-dd hh24:mi:ss') checkpoint_time,FUZZY,checkpoint_change#, 3 count(*) ROW_NUM 4 FROM v$datafile_header 5 GROUP BY status, checkpoint_change#, to_char(checkpoint_time,'yyyy-mm-dd hh24:mi:ss'),fuzzy 6 ORDER BY status, checkpoint_change#, checkpoint_time; STATUS CHECKPOINT_TIME FUZ CHECKPOINT_CHANGE# ROW_NUM ------- ---------------------------------------- --- ------------------ ---------------- OFFLINE 0 121 ONLINE 2022-11-01 10:17:44 YES 40438893615 1
SQL> alter database open; 数据库已更改。 SQL> select name from v$datafile; NAME -------------------------------------------------------------------------- H:\TEMP\11203\SYSTEM01.DBF C:\APP\XFF\PRODUCT\11.2.0.3\DBHOME_1\DATABASE\MISSING00002 C:\APP\XFF\PRODUCT\11.2.0.3\DBHOME_1\DATABASE\MISSING00003 C:\APP\XFF\PRODUCT\11.2.0.3\DBHOME_1\DATABASE\MISSING00004 C:\APP\XFF\PRODUCT\11.2.0.3\DBHOME_1\DATABASE\MISSING00005 ……………… C:\APP\XFF\PRODUCT\11.2.0.3\DBHOME_1\DATABASE\MISSING00121 C:\APP\XFF\PRODUCT\11.2.0.3\DBHOME_1\DATABASE\MISSING00122 已选择122行。
恢复完成
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