Re: ERROR WHILE CALLING STORED PROCEDURE

It is a version compatibility issue.

Try using the below script

CREATE FUNCTION NIT_SCN.MONTH_NUMBER(IN mon_name VARCHAR(100))

RETURNS mon_num VARCHAR(2)

LANGUAGE SQLSCRIPT

SQL SECURITY INVOKER

DEFAULT SCHEMA NIT_SCN AS

BEGIN

mon_num := CASE WHEN UPPER(mon_name) = 'JANUARY' THEN '01'

            WHEN UPPER(mon_name) = 'FEBRUARY' THEN '02'

            WHEN UPPER(mon_name) = 'MARCH' THEN '03'

            WHEN UPPER(mon_name) = 'APRIL' THEN '04'

            WHEN UPPER(mon_name) = 'MAY' THEN '05'

            WHEN UPPER(mon_name) = 'JUNE' THEN '06'

            WHEN UPPER(mon_name) = 'JULY' THEN '07'

            WHEN UPPER(mon_name) = 'AUGUST' THEN '08'

            WHEN UPPER(mon_name) = 'SEPTEMBER' THEN '09'

            WHEN UPPER(mon_name) = 'OCTOBER' THEN '10'

            WHEN UPPER(mon_name) = 'NOVEMBER' THEN '11'

            WHEN UPPER(mon_name) = 'DECEMBER' THEN '12'

          ELSE NULL END;

END;

Please read the following blog as well Scalar User Defined Functions in SAP HANA.

Regards,

Nithin