upsert

upsert verb: to insert rows into a database table if they do not already exist, or update them if they do.

Verb

upsert (third-person singular simple present upserts, present participle upserting, simple past and past participle upserted)

(transitive) To insert rows into a database table if they do not already exist, or update them if they do.
- Each entity event is upserted into the key/value table, such that the most recently read event for a given key is represented.2020, Adam Bellemare, Building Event-Driven Microservices, O'Reilly, →ISBN, page 25

upsert (plural upserts)

An operation that inserts rows into a database table if they do not already exist, or updates them if they do.
- The upsert option lets you specify whether the update should be an upsert—that is, it tells MongoDB to update the record if it exists, and create it if it doesn't.2013, David Hows, Eelco Plugge, Peter Membrey, Tim Hawkins, The Definitive Guide to MongoDB, Apress, →ISBN, page 66
Synonyms:

merge, upsertion

மேம்படுத்தச் செருகல்

Verb
third-person singular present	upserts
present participle	upserting
past participle	upserted
past	upserted
Noun
plural	upserts

Blend of update + insert.

What does upsert mean?: Upsert means to insert rows into a database table if they do not already exist, or update them if they do.
What is upsert in Tamil?: Upsert in Tamil is மேம்படுத்தச் செருகல். See Upsert meaning in Tamil.
What part of speech is upsert?: Upsert can be a verb or a noun.
What is the past tense of upsert?: The past tense of upsert is upserted.

Adapted from Wiktionary: upsert (page history and authors); upsert (Tamil Wiktionary) (page history and authors). Text available under the Creative Commons Attribution-ShareAlike 4.0 license. Word.ws reformatted the entry and added links. Wiktionary data of 2026-09-02.

Last updated: 2026-09-02

Cite this entry: “upsert.” Word.ws, https://word.ws/upsert. Based on Wiktionary, CC BY-SA 4.0.