| 1. |
What Is The Difference Between Restoring And Recovering? |
|
Answer» Restoring involves copying backup files from secondary storage (backup media) to disk. This can be done to replace damaged files or to copy/move a DATABASE to a new location. Recovery is the process of applying REDO logs to the database to roll it FORWARD. One can roll-forward until a specific point-in-time (before the disaster occurred), or roll-forward until the last transaction recorded in the log files. Sql> connect SYS as SYSDBA Sql> RECOVER DATABASE UNTIL TIME '2001-03-06: 16: 00: 00' USING BACKUP CONTROLFILE; Restoring involves copying backup files from secondary storage (backup media) to disk. This can be done to replace damaged files or to copy/move a database to a new location. Recovery is the process of applying redo logs to the database to roll it forward. One can roll-forward until a specific point-in-time (before the disaster occurred), or roll-forward until the last transaction recorded in the log files. Sql> connect SYS as SYSDBA Sql> RECOVER DATABASE UNTIL TIME '2001-03-06: 16: 00: 00' USING BACKUP CONTROLFILE; |
|