CONCAT()

Concepts: sqlConcat

Basic Concatenation The most common use case is combining first and last names into a full name: The query takes first_name, adds a space ' ', then adds last_name. The space is a literal string argument. Without it, you would get 'AliceChen' instead of 'Alice Chen'. Building Complex Strings Advanced Usage Multiple Arguments Handling Empty Values Best Practices When to Use CONCAT() At scale, even simple string operations can become performance bottlenecks.