CHRCODE
When the Data Integration Service uses ASCII mode, CHRCODE returns the numeric ASCII value of the first character of the string passed to the function. ASCII values fall in the range 0 to 255.
When the Data Integration Service uses Unicode mode, CHRCODE returns the numeric Unicode value of the first character of the string passed to the function. Unicode values fall in the range 0 to 65,535.
Normally, before you pass any string value to CHRCODE, you parse out the specific character you want to convert to an ASCII or Unicode value. For example, you might use RTRIM or another string-manipulation function. If you pass a numeric value, CHRCODE converts it to a character string and returns the ASCII or Unicode value of the first character in the string.
This function is identical in behavior to the ASCII function. If you currently use ASCII in expressions, it will still work correctly. However, when you create new expressions, use the CHRCODE function instead of the ASCII function.
Syntax
CHRCODE ( string )
The following table describes the argument for this command:
Argument | Required/ Optional | Description |
|---|
string | Required | Character string. Passes the values you want to return as ASCII or Unicode values. You can enter any valid transformation expression. |
Return Value
Integer.
NULL if a value passed to the function is NULL.
Example
The following expression returns the ASCII or Unicode value for the first character of each value in the ITEMS port:
CHRCODE( ITEMS )
ITEMS | RETURN VALUE |
|---|
Flashlight | 70 |
Compass | 67 |
Safety Knife | 83 |
Depth/Pressure Gauge | 68 |
Regulator System | 82 |