从弹出框输入变量值emp_num,
declare
emp_num varchar2(100);
emp_name varchar2(100);
begin
select papf.LAST_NAME
into emp_name
from per_all_people_f papf
where papf.EMPLOYEE_NUMBER = &emp_num;
exception
WHEN OTHERS THEN
dbms_output.put_line('人员姓名获取错误'||SQLERRM);
end;