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分类目录归档:小工具
Oracle Recovery Tools 12月份更新
根据以前恢复的场景,对Oracle Recovery Tools进行了一些bug修复和更新
1. 在win 2012版本中出现不能选择文件列表事宜进行了修复
2. 增加了对数据块大小为2048的支持(和数据块大小自动识别功能)
3. 增加了配置文件直接恢复功能,可以通过配置文件直接恢复,实现自定义方式恢复,让恢复更加灵活
下载地址:OraRecovery.zip
使用说明请参考:Oracle Recovery Tools
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一键恢复ORA-01113 ORA-01110—Oracle Recovery Tools
一般由于归档日志丢失或者非归档库可能在数据库启动的时候出现类似如下错误
SQL> startup ORACLE instance started. Total System Global Area 2137886720 bytes Fixed Size 2282960 bytes Variable Size 587205168 bytes Database Buffers 1543503872 bytes Redo Buffers 4894720 bytes Database mounted. ORA-01113: file 1 needs media recovery ORA-01110: data file 1: 'F:\ORADATA\XIFENFEI\SYSTEM01.DBF'
主要是由于数据文件不一致需要比较老的日志,但是日志不存在从而导致该问题
以前是通过一系列的方法强制open库,以前类似文章:
12c ORA-01113 ORA-01110 恢复
分享一次ORA-01113 ORA-01110故障处理过程
现在可以通过Oracle Recovery Tools工具一键解决
尝试open数据库
SQL> recover database; Media recovery complete. SQL> alter database open; Database altered.
软件下载:OraRecovery下载
使用说明:使用说明
Oracle Recovery Tools解决ORA-00279 ORA-00289 ORA-00280故障
对于ORA-00279 ORA-00289 ORA-00280故障,一般是由于缺少日志(比如数据库非归档模式,或者归档日志丢失),导致某些文件无法正常online,对此Oracle Recovery Tool能够一键式快速解决.参考:Oracle Recovery Tools—202008
模拟故障
非归档环境,模拟datafile 4 offline,然后多次切换日志,导致该文件无法正常online
SQL> select owner,segment_name from dba_segments where tablespace_name='USERS' AND OWNER='SYSTEM'; OWNER SEGMENT_NAME ------------------------------ ------------------------------ SYSTEM T_XIFENFEI SQL> SELECT COUNT(1) FROM SYSTEM.T_XIFENFEI; COUNT(1) ---------- 87752 SQL> ALTER DATABASE DATAFILE 4 OFFLINE DROP; Database altered. SQL> ALTER SYSTEM SWITCH LOGFILE; System altered. SQL> / System altered. SQL> / System altered. SQL> / System altered. SQL> / System altered. SQL> archive log list; Database log mode No Archive Mode Automatic archival Disabled Archive destination D:\app\Administrator\product\11.2.0\dbhome_1\RDBMS Oldest online log sequence 22 Current log sequence 24 SQL> select group#,status,sequence# from v$log; GROUP# STATUS SEQUENCE# ---------- ---------------- ---------- 1 INACTIVE 22 2 INACTIVE 23 3 CURRENT 24 SQL> RECOVER DATAFILE 4; ORA-00279: change 1525881 generated at 09/06/2020 13:46:17 needed for thread 1 ORA-00289: suggestion : D:\APP\ADMINISTRATOR\PRODUCT\11.2.0\DBHOME_1\RDBMS\ARC0000000019_1046476315.0001 ORA-00280: change 1525881 for thread 1 is in sequence #19 Specify log: {<RET>=suggested | filename | AUTO | CANCEL}
online文件成功
SQL> recover datafile 4; Media recovery complete. SQL> alter database datafile 4 online; Database altered. SQL> SELECT COUNT(1) FROM SYSTEM.T_XIFENFEI; COUNT(1) ---------- 87752
通过该工具就可以快速解决oracle丢失归档数据文件online的问题
软件下载:OraRecovery下载
使用说明:使用说明