New to PL/SQL and need help on check sum using ASCII function

Question

Hello,
Need your expertise to help in figuring out how to write
code to calculate using ASCII function to return value for a character. For example ASCII('A') is 58. I want to do the check sum to sum-up the value for each character in the name. For example 'Jack'
Appreciate your help.
CK

Answer 1

Hi,
Please post all the technical queries in the respective forums. For more details and answers in SQL and PL/SQL, use the following forum:
PL/SQL
Sample PL/SQL code for your requirement:
-- make sure you have the serveroutput on using command.
-- set serveroutput on
DECLARE
sumval NUMBER(10);
tempval NUMBER(10);
colval VARCHAR2(20);
BEGIN
SELECT USER INTO colval FROM dual;
sumval := 0;
FOR i IN 1..LENGTH(colval)
LOOP
SELECT ASCII(SUBSTR(colval,i,1)) INTO tempval FROM dual;
sumval := sumval+tempval;
END LOOP;
DBMS_OUTPUT.PUT_LINE('sum is: '||to_char(sumval));
END;
The output of this pl/sql block will be:
sum is: 397
Please note: ASCII('A') is 65 and not 58.
Hope that helps.
Savitha.
http://otn.oracle.com/sample_code/content.html