重建控制文件时DBA需要知道，但是也许整个职业生涯都不会再生产系统上遇见。首先强调，备份是最安全，快捷，有效的恢复方式，一个DBA，如果没有规划好有效的备份
重建控制文件时DBA需要知道，但是也许整个职业生涯都不会再生产系统上遇见。
首先强调，备份是最安全，快捷，有效的恢复方式，一个DBA，如果没有规划好有效的备份，终有一天，香港服务器，他会被噩梦惊醒。
梦醒之后，就是无奈的，繁杂的手工恢复。而且，恢复到什么程度，香港空间，就要看天，看命，反正不能看自己了，因为没有备份，你已经将主动权完全交个别人。这里就记录一下controlfile的重建
在其他正常的数据库上创建controlfile trace
trace 文件路径在user_dump_dest下
一个完整的trace请参考附件
你可以修改trace文件的路径等具体参数值，并提取其中的创建脚本
注册archivelog
其实重建控制文件，就是相当于手动重新建库，把现有的数据库资源，逐一添加到controlfile中，最后注册目前的archivelog文件。
同时，重建controlfile分为NORESETLOGS和RESETLOGS两种，根据需求选择相应的脚本。
最后的最后，这一切，都是噩梦，还是做好有效备份，美国空间，有备无患，才是王道！！
本文出自 “小小狗窝” 博客，请务必保留此出处
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