Round away from zero

Question

BANNER
Oracle Database 11g Enterprise Edition Release 11.2.0.1.0 - Production
PL/SQL Release 11.2.0.1.0 - Production
CORE     11.2.0.1.0     Production
TNS for 32-bit Windows: Version 11.2.0.1.0 - Production
NLSRTL Version 11.2.0.1.0 - ProductionI have been tasked to write a function to round away from zero
I would like it to be the same as oracle round
  round(n , integer )
  http://www.di.unipi.it/~ghelli/didattica/bdldoc/B19306_01/server.102/b14200/functions135.htmwith the following exceptions if no value is given for the second parameter (integer) a default of 2 is used
because this is typically for pennies
the other exception is that it rounds away from 0 as in round_away_from_zero(2.351) = 2.36 and round_away_from_zero(2.32,1) = 2.4
I am close but do not quite have it.
create or replace function round_away_from_zero   (v_n number, v_integer pls_integer default 2) return number as
begin
     case mod(v_n,.1*(v_integer - 1)) when 0 then
       return trunc(v_n,v_integer);
      else
      return trunc(v_n,v_integer)+ power(.1,v_integer);
      end case;
end; here are my current incorrect results
with t as ( select 1.231 nbr from dual union
                select 1.101   from dual union
                select 1.600 from dual union
                select 1.423 from dual union
                select .30 from dual union
                select .9 from dual union
                select 1.0001 from dual union
                select 10 from dual
select nbr,  round_away_from_zero(nbr,0),  round_away_from_zero(nbr,1), round_away_from_zero(nbr,2)
from t;
NBR     ROUND_AWAY_FROM_ZERO(NBR,0)     ROUND_AWAY_FROM_ZERO(NBR,1)     ROUND_AWAY_FROM_ZERO(NBR,2)
0.3     0     0.4     0.3
0.9     0     1     0.9
1.0001     2     1.1     1.01
1.101     2     1.2     1.11
1.231     2     1.3     1.24
1.423     2     1.5     1.43
1.6     1     1.7     1.6
10     10     10.1     10here are my expected resulst
NBR     ROUND_AWAY_FROM_ZERO(NBR,0)     ROUND_AWAY_FROM_ZERO(NBR,1)     ROUND_AWAY_FROM_ZERO(NBR,2)
0.3     1     0.3     0.3
0.9     1     0.9     0.9
1.0001     2     1.1     1.01
1.101     2     1.2     1.11
1.231     2     1.3     1.24
1.423     2     1.5     1.43
1.6     2     1.7     1.6
10     10     10     10

Answer 1

Hi,
Carlovski's solution is great for numbers greater than or equal to 0.
If you want negative numbers to round away from 0, you can do something like this:
SELECT  nbr
,       SIGN (nbr) * CEIL ( ABS (nbr)
                           * POWER (10, :v_integer)
             / POWER (10, :v_integer)     AS round_away
FROM    t;Output, with some negative numbers, and :v_integer = 1:
`      NBR ROUND_AWAY
       -10        -10
      -1.6       -1.6
    -1.423       -1.5
    -1.231       -1.3
    -1.101       -1.2
   -1.0001       -1.1
       -.9        -.9
       -.3        -.3