Describe the CKPT
Checkpoint ProcessRecords checkpoint information in- Control file- Each data file header• Signals DBWn to write blocks to diskCKPTCheckpoint processA checkpoint is a data structure that defines a system change number (SCN) in the redo thread of a database. They are a crucial element of recovery.Oracle Database must update the control file and the headers of all data files to record the details of the checkpoint. This is done by the CKPT process.