Counting no of digits in a string

Hi all,
Could you please help me on below mentioned one
i need count of digits in the given string
str='' my contact number is 1234567890''
i tried like this
select regexp_count( str,\d) from dual;

SQL> var str varchar2(200);
SQL> exec :str :='my contact number is 1234567890';
PL/SQL procedure successfully completed.
select length(ltrim(translate(:str,translate(:str,'0123456789',' '),' '))) cnt from dual;
CNT
10
exec :str :='my number is 9945814523 and my brother number is 9918457853,54';
PL/SQL procedure successfully completed.
select length(ltrim(translate(:str,translate(:str,'0123456789',' '),' '))) cnt from dual;
CNT
22
Message was edited by: Priyasagi

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Counting no of digits in a string

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