Hi, I read the following lines in a thesis on MonetDB titled - "Improving Transactional Stability in MonetDB" where in they had explained the concurrency control in MonetDB as "Concurrent updates (writers) are not anticipated and in case of N conicting transactions, only one of them (the one having the earliest time-stamp) is guaranteed to eventually commit its changes. Concurrent appends (on the same table) are detected as write-to-write conflicts and only the writer carrying the earliest time-stamp will end up committing successfully, the rest will be aborted." Why is that the transaction having the earliest timestamp is allowed to commit, in case of a conflict? Shouldn't it be the latest transaction that should commit on a data, since the latest transaction would be having the latest version of data? Or, what am I getting wrong here? Any help much appreciated. Thanks & Regards, Vijayakrishna.P. Mobile : (+91) 9500402305.