Hi! This time I have some of the issue with the Oracle 10g's instance recovery. At the time of Instance Recovery, SMON is the background process that performs the instance recovery....but 1)How will Oracle come to know if there is a need for Instance Recovery??? 2)What are the files that will be read so that the Instance Recovery will be performed??? 3)What are the events that cause Checkpoint??? 4)What happens after the checkpoint occurs??? If possible please give the answer of the second question till tomorrow???