![]() ![]() ) |įor versions earlier than PostgreSQL 9.5, use functions or the with syntax to implement functions similar to upsert. The syntax for the same is as follows: Command: INSERT When a constraint error occurs during data insertion, data insertion is rolled back or changed to update. You can view EDUCBA’s recommended articles for more information.Upsert (INSERT ON CONFLICT DO) is a new function of PostgreSQL 9.5. We hope that this EDUCBA information on “PostgreSQL EXISTS” was beneficial to you. Also, we have added some examples to demonstrate how to use the PostgreSQL EXISTS operator to query data. The result will be true if the subquery returns at least one row or returns NULL.įrom the above article, we hope you have learned about the PostgreSQL EXISTS operator and its advantages.The result depends on the number of rows returned by the subquery but does not depend on the column values of the table. ![]()
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