国产一级a片免费看高清,亚洲熟女中文字幕在线视频,黄三级高清在线播放,免费黄色视频在线看

Use the ALTER DATABASE BACKUP CONTROLFILE statement to back up your control files. You have two options:

• Back up the control file to a binary file (duplicate of existing control file) using the following statement:

  ALTER DATABASE BACKUP CONTROLFILE TO '/oracle/backup/control.bkp';

• Produce SQL statements that can later be used to re-create your control file:

  ALTER DATABASE BACKUP CONTROLFILE TO TRACE;

  This command writes a SQL script to a trace file where it can be captured and edited to reproduce the control file. View the alert log to determine the name and location of the trace file.