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MIN Function
MIN is an aggregate function that returns the minimum value within a set of values. The data
type of the result is the same as the data type of the argument.
MIN ([ALL | DISTINCT] expression)
ALL | DISTINCT
specifies whether duplicate values are included in the computation of the minimum of the
expression. The default option is ALL, which causes duplicate values to be included. If
you specify DISTINCT, duplicate values are eliminated before the MIN function is applied.
expression
specifies an expression that determines the values to include in the computation of the
minimum. The expression cannot contain an aggregate function or a subquery. The
DISTINCT clause specifies that the MIN function operates on distinct values from the
one-column table derived from the evaluation of expression. All nulls are eliminated
before the function is applied to the set of values. If the result table is empty, MIN returns
NULL.
See
"Expressions" (page
Considerations for MIN
Operands of the Expression
The expression includes columns from the rows of the SELECT result table—but cannot include
an aggregate function. These expressions are valid:
MIN (SALARY)
MIN (SALARY * 1.1)
MIN (PARTCOST * QTY_ORDERED)
Example of MIN
Display the minimum value in the SALARY column:
SELECT MIN (salary)
FROM persnl.employee;
(EXPR)
-----------
17000.00
--- 1 row(s) selected.
420
SQL Functions and Expressions
255).
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