Regluar expression: at least one number AND at least one capital letter.

Question

How to write regular expression to determine rule:
1) input string must contain at least one number. For example '0A1' contains 2 numberic symbols, but 'Abc' doesn't contain. At least one numeric symbol must occur.
2) input string must also contain one capital letter. for example '0A1' contains capital A, but '0a1' doesn't. At least one capital letter must exist in
Bot 1) and 2) must be true for input string.
How to write such regular expression?

Answer 1

Seems it still is not correct, because 'Test123' is not outputted:Be aware that there are NLS issues:
SQL> alter session set nls_language=english
Session altered.
SQL> with t as (
select '01A' str from dual union all
select '01a' from dual union all
select 'anc' from dual union all
select 'ABC' from dual union all
select 'A3C' from dual union all
select '3Ä' from dual union all
select 'Ä3' from dual union all
select '4Ca' from dual union all
select 'Test123' from dual union all
select 'aTest123' str from dual union all
select 'A423' from dual
select * from t where regexp_like(str, '([A-Z]+\d+)|(\d+[A-Z]+)')
STR    
01A    
A3C    
4Ca    
A423   
4 rows selected.
SQL> alter session set nls_language=german
Session altered.
SQL> with t as (
select '01A' str from dual union all
select '01a' from dual union all
select 'anc' from dual union all
select 'ABC' from dual union all
select 'A3C' from dual union all
select '3Ä' from dual union all
select 'Ä3' from dual union all
select '4Ca' from dual union all
select 'Test123' from dual union all
select 'aTest123' str from dual union all
select 'A423' from dual
select * from t where regexp_like(str, '([A-Z]+\d+)|(\d+[A-Z]+)')
STR    
01A    
A3C    
3Ä     
Ä3     
4Ca    
Test123
aTest123
A423   
8 rows selected.