Grokking SQL for Tech Interviews
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INTERSECT
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INTERSECT

INTERSECT operation returns the common rows between two result sets. MySQL does not natively support the INTERSECT operator, but you can achieve similar results using INNER JOIN or EXISTS clauses.

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Example using the EXISTS approach:

Suppose we have two database tables with the names Customers and Suppliers as shown below:

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Now we want to find the common customers who are also suppliers.

MYSQL
MYSQL
. . . .

Execution of the above query will give the following result:

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