PostgreSQL Upsert Using INSERT ON CONFLICT statement

Summary: in this tutorial, you will learn how to use PostgreSQL upsert feature to insert or update data if the row that is being inserted already exists in the table. In relational databases, the term upsert is referred to as merge. The idea is that when you insert a new row into the table, PostgreSQL will update the row if it already exists, otherwise, it will insert the new row. That is why we call the action is upsert (the combination of update or insert). To use the upsert feature in PostgreSQL, you use the INSERT ON CONFLICT statement as follows: PostgreSQL added the ON CONFLICT target action clause to the INSERT statement to support the upsert feature. In this statement, the target can be one of the following: The action can be one of the following: Notice that the ON CONFLICT clause is only available from PostgreSQL 9.5. If you are using an earlier version, you will need a workaround to have the upsert feature. If you are also working with MySQL, you will find that the upsert fe

Summary: in this tutorial, you will learn how to use PostgreSQL upsert feature to insert or update data if the row that is being inserted already exists in the table. In relational databases, the term upsert is referred to as merge. The idea is that when you insert a new row into the table, PostgreSQL will update the row if it already exists, otherwise, it will insert the new row. That is why we call the action is upsert (the combination of update or insert). To use the upsert feature in PostgreSQL, you use the INSERT ON CONFLICT statement as follows: PostgreSQL added the ON CONFLICT target ac