Help with Select Decode Round

Question

Hi, If anyone could help me with this. I need to round all these numbers in the DECODE but without repeating ROUND.
This way works:
SELECT title "Title", category "Category",retail "Current Price",
DECODE(category,
'COMPUTER',(ROUND(retail * 1.1,2)),
'FITNESS', (ROUND(retail * 1.15,2)),
'SELF HELP', (ROUND(retail * 1.25,2)),
(ROUND(retail * 1.03,2)))"Revised Price"
FROM books
ORDER BY category, title;
But I need something more like this:
SELECT title "Title", category "Category",retail "Current Price",
DECODE (ROUND((category,
'COMPUTER',retail * 1.1,
'FITNESS', retail * 1.15,
'SELF HELP', retail * 1.25,
retail * 1.03)"Revised Price"),2)
FROM books
ORDER BY category, title;
so that ROUND is not repeated more than once..they all need to be rounded to two decimal places.
any help would be great. Thanks

Answer 1

your second is close. You need to round the decode statement. like this:
SELECT title "Title", category "Category",retail "Current Price",
       ROUND(DECODE(category, 'COMPUTER',retail * 1.1,
                              'FITNESS', retail * 1.15,
                              'SELF HELP', retail * 1.25,
                              retail * 1.03),2) "Revised Price"
FROM books
ORDER BY category, title;Note that the alias (I assume) revised Proce needs to go outside of both the decode and the round.
John