Deprecated. Don't use for new development and try to migrate existing uses.
Type:
Scalar function
This function takes an integer string and returns its modulus 10 checksum.
If the input string is either null or if it contains any character that is not a digit then the function will return a value of null.
Return value: bigint
The generated modulus 10 checksum.
Parameters
@IntegerString
mandatory
varchar(8000)
The integer string for which to generate a modulus 10 checksum.