Single statement function : Function « Procedure Function « SQL / MySQL

1. SQL / MySQL
2. Procedure Function
3. Function

Single statement function

    
mysql>
mysql> DELIMITER //
mysql> CREATE FUNCTION calc_tax (cost DECIMAL(10,2)) RETURNS DECIMAL(10,2)
    -> RETURN cost * .05
    -> //
Query OK, 0 rows affected (0.00 sec)

mysql>
mysql> DELIMITER ;
mysql>
mysql> select calc_tax(123.123);
+-------------------+
| calc_tax(123.123) |
+-------------------+
|              6.16 |
+-------------------+
1 row in set, 2 warnings (0.00 sec)

mysql>
mysql> drop function calc_tax;
Query OK, 0 rows affected (0.00 sec)

          
    
    
  

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