Concatenation with Zero is not occuring properly in code?
- by Vineet
I was trying to reverse a number in pl/sql ,its working fine but when my number contain any 0,output come unexpected .for eg
1234 output 4321
1000 output 1
1203 ouput 3021
10001 output 1
DECLARE
r number(9);
num number(9):=&p_num;
BEGIN
WHILE num>=1 LOOP
IF mod(num,10)=0 THEN -- extracting last digit of a number .
r:=r||0; --if end digit is 0 then concat r with 0
ELSE
r:=r||mod(num,10);--if mod is not 0 then it would be last digit.
END IF;
num:=trunc(num/10);--Removing last digit from number
END LOOP;
dbms_output.put_line(r);
END;
