Output not displaying in following order

Question

create table ex1 (x number,y varchar2(20))
insert into ex1 values (100,'TW 5%');
insert into ex1 values (200,'KR 6%');
But i need result as
x y result
100 TW 5% 5
200 KR 6% 12
500 HK 8% 40
hi look at this

Answer 1

Hi,
As fobrich suggested store percentage value is a different column. It is not a good design store expression in column.
any ways you can get yuor result using this query. But this query will not work always time. Your expression contents might change. So this query will fail
SQL>SELECT * FROM t;
         X Y
       100 TW 5%
       200 KR 6%
2 rows selected.
SQL>SELECT X,Y, X* (TO_NUMBER(REPLACE(TRANSLATE(Y,'ABCDEFGHIJKLMNOPQRSTUVWXYZ% ','~'),'~')))/100
  2  FROM t;
         X Y                    X*(TO_NUMBER(REPLACE(TRANSLATE(Y,'ABCDEFGHIJKLMNOPQRSTUVWXYZ%','~'),'~')))/100
       100 TW 5%                                                                                             5
       200 KR 6%                                                                                            12
2 rows selected.
SQL>Regards