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jaggy
answered Feb 27 '23 00:00
Upsert and update are two different operations used in database management.
Update :
1. It is a database operation that modifies existing records in a table.
2. It is used to change the value of one or more columns in a row or a set of rows of a table.
3. If the record or row that needs to be updated does not exist , then the update operation will not modify any data .
Upsert :
insert + update in table query= Upsert
1. It is a combination of insert and update operations .
2. It updates an existing record if it exists or inserts a new record if it does not exist .
3. The upsert operation tries to insert a new row into the table and if it violates a unique constraint or primary key, it will update the existing row with the new values.
In summary, the key difference between upsert and update is that the former combines the functionality of both insert and update operations, while the latter only modifies the existing data.