Joins

Joins in databases are like connecting pieces of information from different tables based on a common attribute. Think of two tables, one with customer details and another with their orders. A join allows you to combine these tables to see all orders with the corresponding customer information. It helps relate data stored separately to create meaningful insights. There are different types of joins (like inner, left, right, and full) that determine which combined data is shown, depending on whether you want only matching records or all records from one or both tables.