plsql错误无效号码

Question

当我遇到无效号码错误时

procedure Afficher(opt int,id int) is
type emp is record(fn employees.first_name%type,
                   lname employees.last_name%type,
                   job jobs.job_title%type,
                   dep departments.department_id%type);
emp1 emp;
begin
select e1.first_name,e1.last_name,j.job_title,d.department_name into emp1
from employees e1 ,jobs j,departments d where e1.employee_id= 'id' and 
e1.job_id=j.job_id and e1.department_id =d.department_id ;

      dbms_output.put_line('Name      Job       Department');
      dbms_output.put_line(emp1.fn||''|| emp1.lname||'     '
            ||emp1.job||'   '||emp1.dep);

end Afficher;

Answer 1

您正在寻找e1.employee_id='id'；它实际上是一个字符串，还是一个数字？

Answer 2

您可能想要：

procedure Afficher(opt int,id int) is
type emp is record(fn employees.first_name%type,
                   lname employees.last_name%type,
                   job jobs.job_title%type,
                   dep departments.department_id%type);
emp1 emp;
begin
select e1.first_name,e1.last_name,j.job_title,d.department_name into emp1
from employees e1 ,jobs j,departments d where e1.employee_id= id and 
e1.job_id=j.job_id and e1.department_id =d.department_id ;

      dbms_output.put_line('Name      Job       Department');
      dbms_output.put_line(emp1.fn||''|| emp1.lname||'     '
            ||emp1.job||'   '||emp1.dep);

end Afficher;

即 id 变量周围没有引号。

最好将变量重命名为 *emp_id* 或类似的名称。