GREATEST
The GREATEST function returns the largest expression in a list of expressions. All expressions after the first are implicitly converted to the data type of the first expression before the comparison.
To retrieve the smallest expression in a list of expressions, use LEAST.
Return Value
The data type of the first expression.
Syntax
GREATEST (expr [, expr]...)
Parameters
- expr
-
An expression.
Examples
Example 7-104 Finding the Text Expression that is Last Alphabetically
The following statement selects the string that is last in alphabetic sequence.
SHOW GREATEST ('Harry', 'Harriot', 'Harold')
Harry
Example 7-105 Finding the Largest Numerical Expression
The following statement selects the number with the greatest value.
SHOW GREATEST (5, 3, 18)
18
