What is correct order of read, write, abort, commit, and rollback in system log records?
The correct order of read, write, abort, commit, and rollback in system log records is as follows:
1. Read: The record of a read operation is logged when a process accesses data from a database or file.
2. Write: The record of a write operation is logged when a process modifies or updates data in a database or file.
3. Abort: The record of an abort operation is logged when a transaction is terminated or rolled back due to an error or failure.
4. Commit: The record of a commit operation is logged when a transaction is successfully completed and its changes are permanently saved in the database.
5. Rollback: The record of a rollback operation is logged when a transaction is canceled or reverted, and all its changes are discarded or undone to maintain data consistency.
It is important to note that the specific sequence of these operations may vary depending on the system implementation, but generally, the correct order is read, write, abort, commit, and rollback.