The local timestamp is per-data element whereas the global timestamp is TM-system-wide. This gives the contention manager the ability to perform data versioning checks for all data elements.
l-henken
^ Edit: local timestamp is per-transaction, but each data element has a timestamp in its transaction record that operates as its version number for data versioning checks.
The local timestamp is per-data element whereas the global timestamp is TM-system-wide. This gives the contention manager the ability to perform data versioning checks for all data elements.