Find a value and the position from the string.

Question

Hi All,
Actually I have one table called test and it got 2 columns in it one is number and the other one is varchar2. now I need to find a particular value from a string and also the position of first position character of that searched value. For example, I need to search “Small” from the string “This is the small value” and also the position of that letter “S”.
The result should be ----
Value Position
Small 14
hare krishna
Alok

Answer 1

use substr(), instr() like this:
with
  test as
      select 1 as num, 'This is the small value' as str from dual union all
      select 2 as num, 'This is the very-very small_value' as str from dual
select num, str,
       substr(substr(str, instr(str, 'small', 1, 1)), 1,
                          nvl(nullif(instr(substr(str, instr(str, 'small', 1, 1)), ' ', 1, 1),0),
                                    length(str)) - 1) as value,
       instr(str, 'small', 1, 1) as position
  from test
Query finished, retrieving results...
NUM                  STR                     VALUE      POSITION
  1   This is the small value             small               13
  2   This is the very-very small_value   small_value         23
2 row(s) retrieved