olemus
andmebaasi kirje tegeliku lisamise, muutmise või kustutuse hetk, andmete ajastuse ja andmetervikluse tugielement
Wiktionary:
(databases) in a DBMS, a point in time at which all updates to a database, or group of records in a database, are guaranteed to have been written to disk, and the journal or log records of that action have also been so committed. Future updates may be undone to that point if necessary

taastetugi (recovery support)
lukud, päevikud, kontrollpunktid jms meetmed püüavad säilitada andmete terviklust vaatamata intsidentidele, mis toimuvad
enne või pärast kehtestuspunkti või selle ajal
= locks, audit trails, checkpoints, etc. measures are used to preserve the integrity of data despite incidents occurring before or after or during the commit point _

ülevaateid_
https://www.youtube.com/watch?v=ND9LuZoQWOU
https://docs.oracle.com/cd/B12037_01/server.101/b10739/ds_txnman.htm
https://www.quora.com/Why-are-transaction-commit-points-important