Talk:Conservative two-phase locking

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Preclaiming (or conservative 2PL) and Strict execution are two independent properties of 2PL! All of the following variants are possible:

                                Strict execution
                          Yes                     No

             Yes          No deadlocks            No deadlocks
                          No cascading aborts     cascading aborts

Preclaiming

             No           deadlocks               deadlocks
                          No cascading aborts     cascading aborts

The three articles on 2PL should be joined!