## Purpose

Declares literal strings of decimal numbers in an expression.

## Syntax

- +, -
- An optional sign.
- n
- Any valid integer.

## Components of Decimal Literals

Decimal literals consist of the following components, reading from left-to-right:

- Optional sign
- Sequence of digits (including none)
- Decimal point
- Optional sequence of digits.

Spaces and new line characters are not allowed in a literal except after the optional sign.

## Decimal Literal Data Types

Decimal literals include the following types:

- DECIMAL
- NUMERIC

## Scale and Precision

The total number of digits in a decimal literal determine the precision and the number of digits to the right of the decimal point determine the scale. Leading and trailing zeros are included in the counts. The precision cannot exceed 38.

A numeric literal that is outside the range of the INTEGER type is assigned to DECIMAL(n, 0), where n is the number of digits in the literal, excluding leading zeros.

## Examples: Decimal Literals

The following numbers are examples of decimal literals.

3.14159 253. -88.234 .29 2147483650

## Related Topics

For information on DECIMAL data types, see DECIMAL/NUMERIC Data Types.