To_number is not working for this??

Question

any idea.. it's 10g
select to_number(trim(' 3020     '))
from dual;
ORA-01722: invalid number

Answer 1

I think you have TAB space in your string.
SQL> select length(trim('  3020                                  '))
f  2  rom dual;
LENGTH(TRIM('3020'))
                   5
SQL> select length(replace('  3020                                       ',' ','
')) from dual;
LENGTH(REPLACE('3020','',''))
                            5
SQL> select replace('  3020                                      ',' ','') from
dual;
REPLA
3020
SQL> select trim('1<TAB SPACE>') from dual;
TR
1
SQL>
SQL> select length('1<TAB SPACE>') from dual;
LENGTH('1')
          2
SQL> select length(trim('1<TAB SPACE>')) from dual;
LENGTH(TRIM('1'))
                2So remove the TAB space from the string and it will work fine
Message was edited by:
tekicora