MAX () function
MAX function returns the maximum of one. NULL values are not included in the calculation.
SQL MAX () syntax
SELECT MAX(column_name) FROM table_name
NOTE: MIN and MAX text columns may also be used to obtain the highest or lowest value in alphabetical order.
SQL MAX () example
We have the following "Orders" table:
| O_Id | OrderDate | OrderPrice | Customer |
|---|---|---|---|
| 1 | 2008/12/29 | 1000 | Bush |
| 2 | 2008/11/23 | 1600 | Carter |
| 3 | 2008/10/05 | 700 | Bush |
| 4 | 2008/09/28 | 300 | Bush |
| 5 | 2008/08/06 | 2000 | Adams |
| 6 | 2008/07/21 | 100 | Carter |
Now we want to find the maximum "OrderPrice" column.
We use the following SQL statement:
SELECT MAX(OrderPrice) AS LargestOrderPrice FROM Orders
The result set will look like this:
| LargestOrderPrice |
|---|
| 2000 |