chr()函数将ASCII码转换为字符 ascii()函数将字符转换为ASCII码
实例:输出26个大写字母的ASCII码
clear;
set serveroutput on;
declare
v_i char(10) := 'A';
begin
for v_j in 1..25
loop
dbms_output.put_line(v_i||ASCII(v_i));
v_i :=chr(ASCII(v_i)+1);
end loop;
end;
/
结果: