What is Upsert Salesforce?

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Tags

1. #based
2. #insert
3. #matching
4. #unique
5. #returns
6. #field
7. #create
8. #value
9. #external
10. #records
11. #update
12. #response
13. #using
14. #resource
15. #specified
16. #upsert
17. #sobject
18. #existing
19. #record