SQL>
SQL> SET SERVEROUTPUT ON SIZE 1000000
SQL>
SQL>
SQL> DECLARE
2
3
4 my_string VARCHAR2(1) := ' ';
5 my_number NUMBER;
6
7 BEGIN
8
9
10 my_number := TO_NUMBER(my_string);
11
12 END;
13 /
DECLARE
*
ERROR at line 1:
ORA-06502: PL/SQL: numeric or value error: character to number conversion error
ORA-06512: at line 10
SQL>
SQL>
SQL>