Oracle sql function to find VARCHAR2 data is numeric

Question

Hi Everyone,
Is there oracle sql function to find whether the VARCHAR2 data is numeric?
Thanks

Answer 1

hi,
see the below example .
with t as
(select '12'  as col from dual union all
select '1 2'  as col from dual union all
select '2 1 3'  as col from dual union all
select 'abcde'  as col from dual union all
select '12345'  as col from dual union all
select '1a4A5'  as col from dual union all
select '12a45'  as col from dual union all
select '12aBC'  as col from dual union all
select '12abc'  as col from dual union all
select '12ab5'  as col from dual union all
select '12aa5'  as col from dual union all
select '12AB5'  as col from dual union all
select 'ABCDE'  as col from dual union all
select '123-5'  as col from dual union all
select '12.45'  as col from dual union all
select '1a4b5'  as col from dual union all
select '1 3 5'  as col from dual union all
select '1  45'  as col from dual union all
select '1   5'  as col from dual union all
select 'a  b  c  d'  as col from dual union all
select 'a b  c   d    e'  as col from dual union all
select 'a              e'  as col from dual union all
select 'Steven'  as col from dual union all
select 'Stephen'  as col from dual union all
select '111.222.3333'  as col from dual union all
select '222.333.4444'  as col from dual union all
select '333.444.5555'  as col from dual union all
select 'abcdefabcdefabcxyz'  as col from dual union all
select 'aaa'  as col from dual union all
select 'ddd'  as col from dual union all
select 'ccc'  as col from dual union all
select 'aaaaa'  as col from dual union all
select 'aaaaaaaa'  as col from dual
select * from t where regexp_like(col,'[1-9]')
Result
COL
12
1 2
2 1 3
12345
1a4A5
12a45
12aBC
12abc
12ab5
12aa5
12AB5
123-5
12.45
1a4b5
1 3 5
1  45
1   5
111.222.3333
222.333.4444
333.444.5555Thanks,
P Prakash