Question

此查询的注释（/ * * /）部分执行但整个查询在/////// part.Please hlep中遇到问题以解决此问题。

 SELECT *
    FROM (

 /*   (SELECT U1.EMAIL, S1.GRNNUM
       FROM RDT_USER U1,
            (SELECT O.ID, GRNNUM
               FROM RDT_ORGANIZATION O,
                    (SELECT GRNNUM, RECEPIENTCODE, ORGINATORCODE
                       FROM RDT_GOODSRECEIPTNOTE M
                      WHERE M.ACTIONSTATUS = 0
                        AND M.LATEST = 1
                        AND (SYSDATE - M.GENDATE) >= 0) S
              WHERE O.FUCODE = S.ORGINATORCODE) S1

      WHERE U1.ORGID = S1.ID)*/ A///////here am getting right paranthesis missing,

    (SELECT U.EMAIL, T1.GRNNUM
       FROM RDT_USER U,
            (SELECT O.ID, GRNNUM
               FROM RDT_ORGANIZATION O,
                    (SELECT GRNNUM, RECEPIENTCODE, ORGINATORCODE
                       FROM RDT_GOODSRECEIPTNOTE M
                      WHERE M.ACTIONSTATUS = 0
                        AND M.LATEST = 1
                        AND (SYSDATE - M.GENDATE) >= 0) T
              WHERE O.FUCODE = T.ORGINATORCODE) T1

      WHERE U.ORGID = T1.ID) B)
 WHERE A.GRNNUM = B.GRNNUM

Answer 1

您需要将别名A置于评论中，如下所示：

SELECT *
    FROM (

 /*   (SELECT U1.EMAIL, S1.GRNNUM
       FROM RDT_USER U1,
            (SELECT O.ID, GRNNUM
               FROM RDT_ORGANIZATION O,
                    (SELECT GRNNUM, RECEPIENTCODE, ORGINATORCODE
                       FROM RDT_GOODSRECEIPTNOTE M
                      WHERE M.ACTIONSTATUS = 0
                        AND M.LATEST = 1
                        AND (SYSDATE - M.GENDATE) >= 0) S
              WHERE O.FUCODE = S.ORGINATORCODE) S1

      WHERE U1.ORGID = S1.ID) A///////here am getting right paranthesis missing,
*/
    (SELECT U.EMAIL, T1.GRNNUM
       FROM RDT_USER U,
            (SELECT O.ID, GRNNUM
               FROM RDT_ORGANIZATION O,
                    (SELECT GRNNUM, RECEPIENTCODE, ORGINATORCODE
                       FROM RDT_GOODSRECEIPTNOTE M
                      WHERE M.ACTIONSTATUS = 0
                        AND M.LATEST = 1
                        AND (SYSDATE - M.GENDATE) >= 0) T
              WHERE O.FUCODE = T.ORGINATORCODE) T1

      WHERE U.ORGID = T1.ID) B)
 WHERE A.GRNNUM = B.GRNNUM

Answer 2

这两个子查询/内联视图需要以某种方式连接。你可能想要一个交叉连接 - 用它们之间的逗号表示 - 在这种情况下，你也可以删除一组括号：

SELECT *
FROM   (SELECT U1.EMAIL, S1.GRNNUM
        FROM   RDT_USER U1,
               (SELECT O.ID, GRNNUM
                FROM   RDT_ORGANIZATION O,
                       (SELECT GRNNUM, RECEPIENTCODE, ORGINATORCODE
                        FROM   RDT_GOODSRECEIPTNOTE M
                        WHERE  M.ACTIONSTATUS = 0
                        AND    M.LATEST = 1
                        AND    (SYSDATE - M.GENDATE) >= 0) S
                WHERE  O.FUCODE = S.ORGINATORCODE) S1

        WHERE U1.ORGID = S1.ID) A,

       (SELECT U.EMAIL, T1.GRNNUM
        FROM   RDT_USER U,
               (SELECT O.ID, GRNNUM
                FROM   RDT_ORGANIZATION O,
                       (SELECT GRNNUM, RECEPIENTCODE, ORGINATORCODE
                        FROM   RDT_GOODSRECEIPTNOTE M
                        WHERE  M.ACTIONSTATUS = 0
                        AND    M.LATEST = 1
                        AND    (SYSDATE - M.GENDATE) >= 0) T
                WHERE  O.FUCODE = T.ORGINATORCODE) T1
        WHERE U.ORGID = T1.ID) B
 WHERE  A.GRNNUM = B.GRNNUM;

编辑我查看的查询越多，就会发现问题越多。

您的内嵌视图/子查询是相同的。交叉连接它们的唯一效果是增加执行时间。
你为什么要做交叉连接？内连接就足够了。
您的内部查询缺少某些列规范，您在连接的外部查询中引用这些规范。这不起作用。

查询的核心基本上就是这个逻辑：

select grnnum,
       recepientcode,
       originatorcode
from   rdt_goodsreceiptnote
where  actionstatus       = 0
and    latest             = 1
and    sysdate - gendate >= 0;

然后您与rdt_organization交叉加入，然后与rdt_user交叉加入;由于某种原因，这个混乱然后与自己交叉。使用内部联接可以大大简化：

select rdt_user.email,
       rdt_goodsreceiptnote.grnnum

from   rdt_goodsreceiptnote

join   rdt_organization
on     rdt_organization.fucode = rdt_goodsreceiptnode.originatorcode

join   rdt_user
on     rdt_user.orgid = rdt_organization.id

where  rdt_goodsreceiptnode.actionstatus       = 0
and    rdt_goodsreceiptnode.latest             = 1
and    sysdate - rdt_goodsreceiptnode.gendate >= 0;

你没有理由在交叉连接中两次这样做，所以就是这样。更容易，是吗？

Oracle内联视图查询

2 个答案: