Question

我得到的Oracle错误ORA-00972标识符太长了。这可能是由于这一行

WHERE EMPLOYEE_ID =＆amp; e;

但我无法理解。

为了测试这一点，我删除了所有CASE语句和serverout语句，但在运行时输入员工ID后仍然出现错误。

运行时附加了错误的图像。 Error

  set echo on
  spool c:\cs422a\wa4spool.txt
  SET SERVEROUT ON

DECLARE Emp_rec HR.EMPLOYEES%ROWTYPE;

BEGIN
    SELECT *
    INTO Emp_rec
    FROM HR.EMPLOYEES
    WHERE EMPLOYEE_ID = &e;

    DBMS_OUTPUT.PUT_LINE("---------------------------------------');
    CASE Emp_rec.Department_ID
         WHEN 10 THEN DBMS_OUTPUT.PUT_LINE('Department:   Administration');
         WHEN 20 THEN DBMS_OUTPUT.PUT_LINE('Department:   Marketing');
         WHEN 30 THEN DBMS_OUTPUT.PUT_LINE('Department:   Purchasing');
         WHEN 40 THEN DBMS_OUTPUT.PUT_LINE('Department:   Human Resources'); 
         WHEN 50 THEN DBMS_OUTPUT.PUT_LINE('Department:   Shipping');
         WHEN 60 THEN DBMS_OUTPUT.PUT_LINE('Department:   IT');
         WHEN 70 THEN DBMS_OUTPUT.PUT_LINE('Department:   Public Relations');
         WHEN 80 THEN DBMS_OUTPUT.PUT_LINE('Department:   Sales'); 
         WHEN 90 THEN DBMS_OUTPUT.PUT_LINE('Department:   Executive');
         WHEN 100 THEN DBMS_OUTPUT.PUT_LINE('Department:  Finance');
         WHEN 110 THEN DBMS_OUTPUT.PUT_LINE('Department:  Accounting');
         WHEN 120 THEN DBMS_OUTPUT.PUT_LINE('Department:  Treasury'); 
         WHEN 130 THEN DBMS_OUTPUT.PUT_LINE('Department:  Corporate Tax');
         WHEN 140 THEN DBMS_OUTPUT.PUT_LINE('Department:  Control and Credit');
         WHEN 150 THEN DBMS_OUTPUT.PUT_LINE('Department:  Shareholder Services');
         WHEN 160 THEN DBMS_OUTPUT.PUT_LINE('Department:  Benefits'); 
         WHEN 170 THEN DBMS_OUTPUT.PUT_LINE('Department:  Manufacturing');
         WHEN 180 THEN DBMS_OUTPUT.PUT_LINE('Department:  Construction');
         WHEN 190 THEN DBMS_OUTPUT.PUT_LINE('Department:  Contracting');
         WHEN 200 THEN DBMS_OUTPUT.PUT_LINE('Department:  Operations'); 
         WHEN 210 THEN DBMS_OUTPUT.PUT_LINE('Department:  IT Support');
         WHEN 220 THEN DBMS_OUTPUT.PUT_LINE('Department:  NOC');
         WHEN 230 THEN DBMS_OUTPUT.PUT_LINE('Department:  IT Helpdesk');
         WHEN 240 THEN DBMS_OUTPUT.PUT_LINE('Department:  Government Sales');
         WHEN 250 THEN DBMS_OUTPUT.PUT_LINE('Department:  Retail Sales');
         WHEN 260 THEN DBMS_OUTPUT.PUT_LINE('Department:  Recruiting');
         WHEN 270 THEN DBMS_OUTPUT.PUT_LINE('Department:  Payroll');  
    END CASE;
    DBMS_OUTPUT.PUT_LINE('Department:        '     || Emp_rec.DEPARTMENT_ID);
    DBMS_OUTPUT.PUT_LINE('Employee ID:          '  || Emp_rec.EMPLOYEE_ID);
    DBMS_OUTPUT.PUT_LINE('Employee First Name:  '  || Emp_rec.FIRST_NAME);
    DBMS_OUTPUT.PUT_LINE('Employee Last Name:   '  || Emp_rec.LAST_NAME);
    DBMS_OUTPUT.PUT_LINE('Salary:               '  || Emp_rec.SALARY);
    DBMS_OUTPUT.PUT_LINE('---------------------------------------');
EXCEPTION
    WHEN NO_DATA_FOUND THEN
    DBMS_OUTPUT.PUT_LINE('No data found.');

END;
/

Answer 1

第9行有一个拼写错误：

DBMS_OUTPUT.PUT_LINE("---------------------------------------');

有双引号，应该是单引号。

在标识符中使用双引号来强制区分大小写（有关详细信息，请参阅this question）。

在您的示例中，PL / SQL解析器认为您正在尝试使用名为-----------------------------的变量----------（...）这会导致ORA-00972。

ORA-00972标识符太长 - 声明语句

1 个答案: