In DBMS, log files typically contain:

  1. Transaction ID: This uniquely identifies the transaction that made the change.
  2. Operation Type: This denotes the type of operation that was performed, such as INSERT, UPDATE, DELETE, or SELECT.
  3. Data: The data that was changed by the operation. This might include both the old value (before the change) and the new value (after the change).
  4. Timestamp: The time at which the operation was performed.
  5. Status: The status of the transaction, such as “start”, “commit”, or “abort”.
  6. Table Name or Record ID: An identifier for the table or record that was changed.