Sql query usig round and decode together

Question

can i get one sql quer for returning whole number using round and decode function
eg:
the value 47
if value=47
then
the query should return 50
if the value =44
then
the quer should return 40
pls give me sql query for above example using round and decode function
Edited by: user11368167 on Jul 9, 2009 3:35 AM

Answer 1

A wild guess. If you want the ROUND Function to work only when your column value is 44 or 47 then you could use something like:
SQL> WITH test_tab AS
  2       (SELECT 44 col_1
  3          FROM DUAL
  4        UNION ALL
  5        SELECT 15 col_1
  6          FROM DUAL
  7        UNION ALL
  8        SELECT 47 col_1
  9          FROM DUAL
10        UNION ALL
11        SELECT 45 col_1
12          FROM DUAL)
13          -- end of test data
14  SELECT col_1,
15         DECODE (col_1,
16                 44, ROUND (col_1, -1),
17                 47, ROUND (col_1, -1),
18                 col_1
19                ) rounded_value
20    FROM test_tab
21  /
     COL_1 ROUNDED_VALUE
        44            40
        15            15
        47            50
        45            45
4 rows selected.
SQL> CASE Statement can be used as well instead of DECODE.
Good Luck,
Regards,
Jo