MySQL – Upsert Table of content The MySQL UPSERT Operation The MySQL UPSERT operation combines INSERT and UPDATE into a single statement, allowing you to insert a new row into a table or update an existing row if it already exists. We can understand in the name (UPSERT) itself, where UP stands for UPDATE and […]
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MySQL – On Delete Cascade Table of content The MySQL ON DELETE CASCADE Constraint The MySQL ON DELETE CASCADE constraint ensures that when a row in the parent table is deleted, all related rows in the child table are automatically deleted as well. This constraint helps maintain referential integrity between two tables that are connected […]
MySQL – UUID Table of content The MySQL UUID function The MySQL UUID() function is used to generate “Universal Unique Identifiers” (UUIDs) in accordance with RFC 4122. UUIDs are designed to be universally unique, even when generated on different servers. The UUID is generated using a combination of the current timestamp, the unique identifier of […]