Question

您好，您可以帮我吗？即时通讯收到错误缺少关键字。参见下面的代码。预先感谢。

SELECT Datum, Wdomain, Lgstkproc, Username,
Case when LGSTKPROC = 'NAVUL'
         COUNT (unique username '-'palnumber end nr_pal_per_user_navul,
Case when LGSTKPROC !=‘NAVUL’
         COUNT (unique username '-'palnumber end nr_pal_per_user_veplaatst
From (
SELECT USERNAME, RES, RESTYPE, WDOMAIN, LGSTKPROC,  LOCNAME, ENDLOCNAME, PALNUMBER, TRUNC(SYSDATE-1) datum 
FROM TransportStock$VW TS
WHERE TRUNC(timestamp)<TRUNC(sysdate)-1
AND res NOT LIKE '%CONVS%'
)
Group by Username, Datum,  Lgstkproc, Wdomain

Answer 1

这没有道理：

Case when LGSTKPROC = 'NAVUL'
     COUNT (unique username '-'palnumber end nr_pal_per_user_navul,

我推测您想要

count(distinct case when LGSTKPROC = 'NAVUL'
                    then username || '-' || palnumber
               end) as nr_pal_per_user_navul

Answer 2

您在这里缺少逗号：

SELECT datum,
       wdomain,
       lgstkproc,
       username,
       COUNT (DISTINCT CASE WHEN lgstkproc = 'NAVUL' THEN 
                                 username || '-' || palnumber
                       END) AS nr_pal_per_user_navul,                --> comma missing here
       COUNT (DISTINCT CASE WHEN lgstkproc != 'NAVUL' THEN 
                                 username || '-' || palnumber
                       END) AS nr_pal_per_user_veplaatst
FROM (SELECT username,
             res,
             restype,
             wdomain,
             lgstkproc,
             locname,
             endlocname,
             palnumber,
             trunc(SYSDATE - 1) datum
      FROM transportstock$vw ts
      WHERE trunc(timestamp) < trunc(SYSDATE) - 1
        AND res NOT LIKE '%CONVS%'
     )
GROUP BY username,
         datum,
         lgstkproc,
         wdomain

如果正确格式化编写的代码，事情将更加清楚。

此外，这些COUNT并没有太大意义-不管CASE的值如何，两个lgstkproc都选择相同的值。

缺少关键字ORA00905

2 个答案: