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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)
Updated on: 22-Jun-2020
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