Today, we want to tell you about SELF JOIN and when this clause can be useful.
Imagine you have a table with a list of the company's employees, and some of these employees report to each other. Your goal is to get each employee's name and the name of their respective manager. How can you do this? Here, the SELF JOIN clause comes in handy.
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Негізгі бет Ғылым және технология SQL for beginners: SELF JOIN
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