PL/SQL 语句被忽略

Question

我是PL/SQL 的初学者，我想创建函数来检索 AllProject。 到目前为止，我创建的是

          CREATE OR REPLACE FUNCTION GETALLPROJECTS(currentUserID in INT)
   RETURN SYS_REFCURSOR
IS 
   rc  SYS_REFCURSOR;
BEGIN
OPEN rc FOR
        SELECT p.*
        FROM projects p
        LEFT JOIN project_users_schedule_dates pusd
ON     
      pusd.ProjectID = p.ProjectID
AND 
      pusd.UserID = currentUserID
LEFT JOIN responsible_persons rp
ON
   rp.ProjectID = p.ProjectID
AND 
   rp.UserID = currentUserID
LEFT JOIN users u ON u.UserID = currentUserID
WHERE    
     u.User_roleID = 1
(
    (p.Responsible_person_id = currentUserId OR 
    p.Delivery_contact = currentUserId OR 
    rp.UserID = currentUserId OR 
    (pusd.ProjectID = p.ProjectID AND                         
    pusd.UserID = currentUserId AND NOW() BETWEEN pusd.StartDate AND pusd.EndDate + INTERVAL 1 DAY 
    AND
    NOW() BETWEEN p.StartDate AND p.EndDate + INTERVAL 1 DAY)
    AND p.status = 2)
)
 ORDER BY p.ProjectID;
RETURN rc;
END GETALLPROJECTS;

编译时出现两个错误，我不明白错误是什么：

第一个错误是：

Error(6,1): PL/SQL: SQL Statement ignored

第二个错误是：

Error(27,24): PL/SQL: ORA-00933: SQL command not properly ended

Answer 1

多余的逗号，应该是 = 而不是 :=，缺少分号，缺少 INTERVAL 的单引号。

此外，您不能将那么多列选择到单个VARCHAR2 变量中，也不能将GROUP BY 选择为单个列。考虑返回一个 ref 游标：

CREATE OR REPLACE FUNCTION GETALLPROJECTS (currentUserID IN INT)
   RETURN SYS_REFCURSOR
IS
   rc  SYS_REFCURSOR;
BEGIN
   OPEN rc FOR
        SELECT p.*
          FROM projects p
               LEFT JOIN project_users_schedule_dates pusd
                  ON     pusd.ProjectID = p.ProjectID
                     AND pusd.UserID = currentUserID
               LEFT JOIN responsible_persons rp
                  ON     rp.ProjectID = p.ProjectID
                     AND rp.UserID = currentUserID
               LEFT JOIN users u ON u.UserID = currentUserID
         WHERE    u.User_roleID = 1
               OR ( (   p.Responsible_person_id = currentUserID
                     OR p.Delivery_contact = currentUserID
                     OR rp.UserID = currentUserID
                     OR     (    pusd.ProjectID = p.ProjectID
                             AND pusd.UserID = currentUserID
                             AND NOW () BETWEEN pusd.StartDate
                                            AND pusd.EndDate + INTERVAL '1' DAY
                             AND NOW () BETWEEN p.StartDate
                                            AND p.EndDate + INTERVAL '1' DAY)
                        AND p.status = 2))
      ORDER BY p.ProjectID;

   RETURN rc;
END GETALLPROJECTS;

---

由于我没有你的表，这里有一个基于 Scott 的示例模式创建的示例，只是为了说明你可能做了什么：

SQL> create or replace function getallemp (par_deptno in number)
  2    return sys_refcursor
  3  is
  4    rc sys_refcursor;
  5  begin
  6    open rc for
  7      select e.*
  8      from emp e
  9      where e.deptno = par_deptno
 10      order by e.ename;
 11    return rc;
 12  end;
 13  /

Function created.

SQL>
SQL> select getallemp(10) from dual;

GETALLEMP(10)
--------------------
CURSOR STATEMENT : 1

CURSOR STATEMENT : 1

     EMPNO ENAME      JOB              MGR HIREDATE        SAL       COMM     DEPTNO
---------- ---------- --------- ---------- -------- ---------- ---------- ----------
      7782 CLARK      MANAGER         7839 09.06.81       2450                    10
      7839 KING       PRESIDENT            17.11.81      10000                    10
      7934 MILLER     CLERK           7782 23.01.82       1300                    10


SQL>

Answer 2

使用此查询并首先通过在查询中传递硬编码值来检查查询是否独立工作：

CREATE OR REPLACE FUNCTION GETALLPROJECTS(currentUserID in INT)
   RETURN SYS_REFCURSOR
IS 
   rc  SYS_REFCURSOR;
BEGIN
OPEN rc FOR
        SELECT p.ProjectID,
            p.CustomName,
            p.Name,
            p.Responsible_person_id,
            p.Delivery_contact,
            p.StartDate,
            p.EndDate,
            p.TehnicReview,
            p.status
        FROM projects p
        LEFT JOIN project_users_schedule_dates pusd
ON     
      pusd.ProjectID = p.ProjectID
AND 
      pusd.UserID = currentUserID
LEFT JOIN responsible_persons rp
ON
   rp.ProjectID = p.ProjectID
AND 
   rp.UserID = currentUserID
LEFT JOIN users u ON u.UserID = currentUserID
WHERE    
     u.User_roleID = 1
(
    (p.Responsible_person_id = currentUserId OR 
    p.Delivery_contact = currentUserId OR 
    rp.UserID = currentUserId OR 
    (pusd.ProjectID = p.ProjectID AND                         
    pusd.UserID = currentUserId AND NOW() BETWEEN pusd.StartDate AND pusd.EndDate + INTERVAL 1 DAY 
    AND
    NOW() BETWEEN p.StartDate AND p.EndDate + INTERVAL 1 DAY)
    AND p.status = 2)
)
 ORDER BY p.ProjectID;
RETURN rc;
END GETALLPROJECTS;