The SQL JOIN statement is used to combine data from two or more tables in a single query. It allows you to retrieve data from multiple tables based on relationships between the tables.
For example, if a company has two tables, one containing employee data and the other containing department data, the following query can be used to retrieve the employee name, job title, and department name for all employees:
SELECT Employees.Name, Employees.JobTitle, Departments.Name
FROM Employees
JOIN Departments
ON Employees.DepartmentID = Departments.ID;