LEFT JOIN

# Mastering SQL Left Joins: The Definitive Guide Ever find yourself needing to combine data from multiple tables in your database, but wanting to ensure you *always* get all the records from one table, regardless of whether there's a match in the other? That's where the `LEFT JOIN` shines. It's a fundamental SQL tool for merging datasets, guaranteeing you see all the data from your "left" table, and any matching data from your "right" table. If there's no match, you'll get `NULL` values, lett