What is a self join? Explain it with an example?
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Answer Posted / kannan
CREATE TABLE IF NOT EXISTS `emp` (
`id` int(11) NOT NULL auto_increment,
`name` varchar(50) collate latin1_general_ci NOT NULL,
`dept_id` int(11) NOT NULL,
`mgr_id` int(11) NOT NULL,
PRIMARY KEY (`id`)
)
SELECT e2.name Employee_name, e1.name Manager_name
FROM emp e1, emp e2
WHERE e2.mgr_id = e1.id
| Is This Answer Correct ? | 12 Yes | 8 No |
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