MAX Function

Returns the maximum value in a column.

Categories: Aggregate
Descriptive Statistics
Returned data type: The same data type as the expression
Syntax
Arguments
Details
Comparisons
Example
See Also

Syntax

MAX(expression)

Arguments

expression

specifies any valid SQL expression.

Data type All data types are supported.
See <sql-expression>
FedSQL Expressions

Details

The MAX function ignores null values and SAS missing values.
You can use an aggregate function to produce a statistical summary of data in the entire table that is listed in the FROM clause or for each group that is specified in a GROUP BY clause. The GROUP BY clause groups data by a specified column or columns. When you use a GROUP BY clause, the aggregate function in the SELECT clause or in a HAVING clause instructs FedSQL in how to summarize the data for each group. FedSQL calculates the aggregate function separately for each group. If GROUP BY is omitted, then all the rows in the table or view are considered to be a single group.

Comparisons

The MIN function returns the minimum value in a column. The MAX function returns the maximum value in a column.

Example

The following statement illustrates the MAX function.
Statements
Results
 
select max(population) from densities;
 
34248705

See Also

Functions:
MIN Function
SELECT Statement Clauses:
SELECT Clause
GROUP BY Clause
HAVING Clause
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Last updated: February 23, 2017