Sql Upsert — Free Sql Tutorial
Learn Sql Upsert in Sql with a free, beginner-friendly tutorial, examples and practice for Indian students on Syllab.in.
TL;DR: Learn Sql Upsert in Sql with a free, beginner-friendly tutorial, examples and practice for Indian students on Syllab.in.
Written & reviewed by the Syllab.in Academic Team (CBSE/NCERT subject experts) · Updated
Sql Upsert in Sql
UPSERT combines INSERT and UPDATE in a single operation.
MySQL uses INSERT ... ON DUPLICATE KEY UPDATE syntax.
PostgreSQL uses INSERT ... ON CONFLICT ... DO UPDATE syntax.
Prevents duplicate key errors while updating existing records.
More efficient than checking existence with separate SELECT + INSERT/UPDATE.
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