Multiple joins in SQL are a powerful technique for retrieving data from multiple tables simultaneously. Instead of querying each table individually, you can combine their data using join clauses. This is particularly useful when the data you need is spread across different tables, like customer information, order details, and product specifications. A single query can then retrieve all the necessary information, making your database interactions more efficient. The most common types of joins are inner joins, left joins, right joins, and full outer joins. Using multiple joins allows you to combine data from multiple tables based on relationships defined by the join conditions. For example, you might want to retrieve customer names and their corresponding order details. This requires joining the customer table with the order table based on a common column, such as a customer ID. Multiple joins extend this concept to more than two tables, allowing you to combine data from a complex network of interconnected tables.