Mudasir Qazi - mudasirqazi00@gmail.com 1

SQL JoinsTypes and Syntax

11-Dec-14

Mudasir Qazi - mudasirqazi00@gmail.com 2

Note:

• You can apply join without using ‘join’ keyword, that is called “Natural Join” and it is equivalent to the “Inner join”.• For example we have two tables under name Employee and Project

then we can apply natural join like this on employee_id.SELECT <select_list>

FROM Employee, ProjectWHERE Employee.employee_id = Project.employee_id;

• There are 8 types of joins in SQL (1 about and 7 are explained in next slide).

11-Dec-14

Mudasir Qazi - mudasirqazi00@gmail.com 311-Dec-14