InterviewSolution
Saved Bookmarks
InterviewSolution
| 1. |
What Is Checkpoint? |
|
Answer» Checkpoint (CKPT) At SPECIFIC times, all modified database buffers in the system global area are written to the datafiles by DBWR; this event is CALLED a checkpoint. The Checkpoint process is responsible for signalling DBWR at CHECKPOINTS and updating all the datafiles and control files of the database to indicate the most recent checkpoint. CKPT is optional; if CKPT is not PRESENT, LGWR assumes the responsibilities of CKPT. Checkpoint (CKPT) At specific times, all modified database buffers in the system global area are written to the datafiles by DBWR; this event is called a checkpoint. The Checkpoint process is responsible for signalling DBWR at checkpoints and updating all the datafiles and control files of the database to indicate the most recent checkpoint. CKPT is optional; if CKPT is not present, LGWR assumes the responsibilities of CKPT. |
|