Question

我有一个在Microsoft Access环境中工作的UNION查询。我在SQL Server中得到的错误是：“每个GROUP BY表达式必须包含至少一个不是外部引用的列”。查询格式如下：

SELECT tblA.ProjectID, 
       tblB.PersonnelID, 
       "TeamMember" AS ProjectRole
FROM tblA INNER JOIN tblB ON (tblA.ProjectID = tblB.ProjectID) 
    AND (tblA.ProjectID = tblB.ProjectID) 
GROUP BY tblA.ProjectID, tblB.PersonnelID, "TeamMember"
HAVING ((Not (tblB.PersonnelID) Is Null) AND ((Sum(tblB.Hours))>0))

如何使此查询适用于SQL Server？

Answer 1

afaik having仅适用于像sum这样的aggragate函数，所以我将not null内容移到where中。引号也需要单打。我还将连接标准放在一个括号中。试试这个：

SELECT tblA.ProjectID, 
       tblB.PersonnelID, 
       'TeamMember' AS ProjectRole
  FROM tblA 
 INNER JOIN 
       tblB 
    ON (tblA.ProjectID = tblB.ProjectID
   AND  tblA.ProjectID = tblB.ProjectID) 
 where tblB.PersonnelID is not null
 GROUP BY 
       tblA.ProjectID
     , tblB.PersonnelID
     , 'TeamMember'
HAVING Sum(tblB.Hours) > 0

SQL Server中的访问查询已损坏

1 个答案: