A. alter database open B. alter database open repairlog C. alter database open resetlogs D. alter database open resetlog E. alter database resetlogs open
You have lost datafiles 1 and 3 from your database,and the database has crashed. In what order should you perform the following steps to recover your database?() 1. Take the datafiles that were lost offline. 2. startup mount the database 3. Issue the alter database open command. 4. Restore the datafiles that were lost 5. Recover the datafiles with the recover datafile command. 6. Bring the datafiles back online. 7. Recover the database with the recover database command.
A. 2,1,3,4,5,6 B. 2,4,5,3 C. 4,7,3 D. 2,4,7,3 E. 2,7,3
A. Recover the online redo log from backup. B. Delete and re-create the log file. C. Use the alter database clear logfile command to clear the log file. D. Shut down the database and restart it. E. Shut down the database and then mount it. Clear the log file with the alter database clear logfile command and then restart the database with alter database open resetlogs.