upsert
upsert · upserts
An operation that inserts rows into a database table if they do not already exist, or…An operation that inserts rows into a database table if they do not already exist, or updates them if they do.
Dictionary text adapted from Wiktionary (Wiktionary contributors, CC BY-SA 4.0) and Open English WordNet / Princeton WordNet (CC BY 4.0, WordNet License); shared under CC BY-SA 4.0. Example sentences and recordings are credited where they appear.