SQL MAX Function

SQL uses the MAX function to find the maximum value in a column. The syntax for using the MAX function is,

SELECT MAX("column_name")
FROM "table_name"

For example, if we want to get the highest sales from the following table,

Table Store_Information

store_name	Sales	Date
Los Angeles	$1500	Jan-05-1999
San Diego	$250	Jan-07-1999
Los Angeles	$300	Jan-08-1999
Boston	$700	Jan-08-1999

we would type in

SELECT MAX(Sales) FROM Store_Information

Result:

$1500 represents the maximum value of all Sales entries: $1500, $250, $300, and $700.