Join Operations

Join operations are used to combine data from two or more tables based on a related column. Imagine you have a table of customers and another of their orders. A join operation allows you to connect these tables so you can see which customer made each order. There are different types of joins: an inner join shows only matching records, a left join includes all records from the first table and matching ones from the second, and so on. This method helps organize and analyze data across different sources effectively.