What is the need for MERGE statement in SQL?
The MERGE statement in SQL is used for efficient upsert operations, combining conditional INSERT, UPDATE, and DELETE in a single statement. It is valuable for synchronizing data between tables, avoiding race conditions, maintaining data integrity, and reducing round trips to the database. It's particularly useful when you want to insert a new record or update an existing one based on a specified condition in a single, atomic operation.
The MERGE statement in SQL is like a multitasking command it can insert new data, update existing records, or delete specific entries all at once. This makes it super handy for keeping your database organized and up-to-date without needing multiple steps. It’s like getting multiple chores done with one swift move!