Necessary requirement: undone and redone in order and for each listed transaction T

Consider the following log file when the system crashes checkpoint (T1, T2 State the corresponding recovery plan (i.e. list the transactions needed to be undone and redone in order and for each listed transaction T, state the values of data items that are involved in transaction T after the undone or redone operation) Consider the following log file when the system crashes checkpoint (T1, T2 State the corresponding recovery plan (i.e. list the transactions needed to be undone and redone in order and for each listed transaction T, state the values of data items that are involved in transaction T after the undone or redone operation)