INTEGER or INT

The INTEGER function returns an integer representation of:

• A number
• A character or graphic string representation of a decimal number
• A character or graphic string representation of an integer
• A character or graphic string representation of a floating-point number
• A character or graphic string representation of a decimal floating-point number

Numeric to Integer

numeric-expression

An expression that returns a numeric value of any built-in numeric data type.

If the argument is a numeric-expression, the result is the same number that would occur if the argument were assigned to a large integer column or variable. If the whole part of the argument is not within the range of integers, an error is returned. The fractional part of the argument is truncated.

String to Integer

string-expression

An expression that returns a value that is a character-string or graphic-string representation of a number.

If the argument is a string-expression, the result is the same number that would result from CAST( string-expression AS INTEGER). Leading and trailing blanks are eliminated and the resulting string must conform to the rules for forming a floating-point, decimal floating-point, integer, or decimal constant. If the whole part of the argument is not within the range of integers, an error is returned. Any fractional part of the argument is truncated.

The result of the function is a large integer. If the argument can be null, the result can be null; if the argument is null, the result is the null value.

Note

Syntax alternatives: The CAST specification should be used to increase the portability of applications. For more information, see CAST specification.