Implement Intersection Between Tables Using 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)