What is a self join? Explain it with an example?
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Answer Posted / madhavi
Joining the table to itself is self join.
Example:
To find the manager name for each employee in the employee
table:
select e1.empno employee_id,e1.ename employee_name,e2.ename
manager_name,e2.empno employee_num from emp e1,emp e2 where
e1.empno=e2.mgr;
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