Find A Point In number

Question

here is Query
Select 23.25 from dual
How can i Select only 23 from this number or 25 from this number .I mean to find the value after a point or before a point i number

Answer 1

Hi,
There are different possible ways, one would be :SQL> with t as (
  2  select 12.34 n from dual
  3  union all select 0.1234 from dual
  4  union all select 1234 from dual
  5  )
  6  select n
  7  ,regexp_substr(to_char(n,'fm9999999999999D999999999999'),'^\d*') before
  8  ,regexp_substr(to_char(n,'fm9999999999999D999999999999'),'\d*$') after
  9  from t ;
         N BEFORE                      AFTER
     12.34 12                          34
     .1234                             1234
      1234 1234
3 rows selected.This returns before and after as strings.
Or you could :SQL> with t as (
  2  select 12.34 n from dual
  3  union all select 0.1234 from dual
  4  union all select 1234 from dual
  5  )
  6  select n
  7  ,trunc(n) before
  8  ,n-trunc(n) after
  9  from t ;
         N     BEFORE      AFTER
     12.34         12        .34
     .1234          0      .1234
      1234       1234          0
3 rows selected.this returns numbers