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Function Reference

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CHR

CHR returns the ASCII character corresponding to the numeric value you pass to this function. ASCII values fall in the range 0 to 255. You can pass any integer to CHR, but only ASCII codes 32 to 126 are printable characters.

Syntax

CHR( numeric_value )

Argument	Required/ Optional	Description
numeric_value	Required	Numeric datatype. The value you want to return as an ASCII character. You can enter any valid expression.

Return Value

ASCII character. A string containing one character.

NULL if a value passed to the function is NULL.

Example

The following expression returns the ASCII character for each numeric value in the ITEM_ID column:

CHR( ITEM_ID )

ITEM_ID	RETURN VALUE
65	A
122	z
NULL	NULL
88	X
100	d
71	G

Use the CHR function to concatenate a single quotation mark onto a string. The single quotation mark is the only character that you cannot use inside a string literal. Consider the following example: