Control File 恢复

场景一：重建control File
?You’ve experienced a failure and lost all of your control files, and you belatedly realizethat you don’t have a good binary backup of the control file.
?You want to change a database setting that can be modified only by re-creating the con-trol file.
?You are relocating a large number of datafiles, and you find it easier to re-create the　control file with the new names and locations (instead of manually renaming the　datafiles)

解决：重建Control FIles