Re: Decode issue

Question

Hi,
My following statement does not return anything. Can someone help me to find my mistake pl?
l_level is a varchar2(2) variable. It holds value '3'.
SELECT value
FROM tab_value
WHERE TRIM(pcode) = DECODE(TRIM(l_level), '1', '031', TRIM(l_level), '2', '032',
          TRIM(l_level), '3', '033', TRIM(l_level), '4', '034');
Thanks

Answer 1

SELECT value
FROM tab_value
WHERE TRIM(pcode) = case TRIM(l_level) when '1' then '031' when '2' then '032' when '3' then '033' when '4' then '034' end;
or
SELECT value
FROM tab_value
WHERE TRIM(pcode) = decode(TRIM(l_level), '1' , '031', '2', '032', '3', '033', '4', '034');