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How can INTERSECTION between tables be implemented with the help of MySQL joins?
Actually, INTERSECTION is just an inner join on all columns. We are taking a simple example of two tables, having the data as follows −
mysql> Select * from value1; +------+------+ | i | j | +------+------+ | 1 | 1 | | 2 | 2 | +------+------+ 2 rows in set (0.00 sec) mysql> Select * from value2; +------+------+ | i | j | +------+------+ | 1 | 1 | | 3 | 3 | +------+------+ 2 rows in set (0.00 sec)
Now, the following query will do the INTERSECTION between these tables −
mysql> Select * from value1 join value2 using(i,j); +------+------+ | i | j | +------+------+ | 1 | 1 | +------+------+ 1 row in set (0.08 sec)
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