How can I use MySQL subquery as a table in FROM clause?
We can use a subquery as a table in the FROM clause in the same way as the result of a subquery can be used with an operator in the WHERE clause. In the following example, we are using the result of subquery as a table by writing it after the FROM clause. It is mandatory to use an alias after subquery, here we are using alias ‘C_car’. To demonstrate it we are using the data as follows from table ‘Cars’ −
mysql> Select * from Cars;
+------+--------------+---------+
| ID | Name | Price |
+------+--------------+---------+
| 1 | Nexa | 750000 |
| 2 | Maruti Swift | 450000 |
| 3 | BMW | 4450000 |
| 4 | VOLVO | 2250000 |
| 5 | Alto | 250000 |
| 6 | Skoda | 1250000 |
| 7 | Toyota | 2400000 |
| 8 | Ford | 1100000 |
+------+--------------+---------+
8 rows in set (0.02 sec)
mysql> Select * FROM ( Select Name, Price from Cars Where Price > 200000) C_car WHERE Name = 'Nexa';
+------+--------+
| Name | Price |
+------+--------+
| Nexa | 750000 |
+------+--------+
1 row in set (0.00 sec)
Published on 22-Feb-2018 10:13:19
