Question

有人帮我修复了这条SQL语句吗？我正在尝试从故事表中检索故事，创建日期以及从成员表中检索公司角色，但是收到错误：

无法绑定多部分标识符“s.ProjectIterationMemberID”。无法绑定多部分标识符“s.StoryID”。

SELECT s.Story, s.CreationDate, m.CompanyRole FROM Story s, Member m INNER JOIN    
ProjectIterationMember pim On m.MemberID = pim.MemberID AND 
pim.ProjectIterationMemberID = s.ProjectIterationMemberID INNER JOIN 
ProjectStoryFactors psf On s.StoryID = psf.StoryID JOIN AgileFactors af ON 
psf.AgileFactorID = af.AgileFactorID WHERE StoryCategoryID = 1 AND af.Name = '" + tag + "'"

我的表格结构如下：

会员{MemberID（PK），CompanyRole}

ProjectIterationMember   {ProjectIterationMemberID（PK），   会员ID（FK）}

故事{StoryID（PK），   ProjectIterationMemberID，   StoryCategoryID，Story，CreationDate}

ProjectStoryFactors   {ProjectStoryFactorID（PK），StoryID，   AgileFactorID}

AgileFactors {AgileFactorID（PK），   名称}

Answer 1

您使用故事和成员之间的逗号

打破了ANSI连接链

SELECT s.Story, s.CreationDate, m.CompanyRole
FROM Story s
INNER JOIN ProjectIterationMember pim
 On pim.ProjectIterationMemberID = s.ProjectIterationMemberID
INNER JOIN Member m
 ON m.MemberID = pim.MemberID
INNER JOIN ProjectStoryFactors psf
 On s.StoryID = psf.StoryID
JOIN AgileFactors af
 ON psf.AgileFactorID = af.AgileFactorID
WHERE StoryCategoryID = 1 AND af.Name = '" + tag + "'"

这是您的查询分为块。在FROM子句中混合使用ANSI和非ANSI会使事情变得棘手。

<小时/> SELECT s.Story，s.CreationDate，m.CompanyRole FROM

故事

， - 小逗号

会员m INNER JOIN
ProjectIterationMember pim on m.MemberID = pim.MemberID AND pim.ProjectIterationMemberID = s.ProjectIterationMemberID INNER JOIN ProjectStoryFactors psf On s.StoryID = psf.StoryID JOIN AgileFactors af ON psf.AgileFactorID = af.AgileFactorID

WHERE StoryCategoryID = 1 AND af.Name ='“+ tag +”'“

别名“s”在第一个逗号部分定义，不能从第二部分“看到”。

Answer 2

SELECT 
   s.Story, 
   s.CreationDate,
   m.CompanyRole
FROM
   Story s
INNER JOIN ProjectiterationMember pm 
ON
   pm.ProjectIterationMemberID = s.ProjectIterationMemberID
INNER JOIN Member m
ON
   m.MemberID = pm.MemberID
INNER JOIN ProjectStoryFactors psf 
ON 
   psf.StoryID = s.StoryID
INNER JOIN AgileFactors af
ON  
   af.AgileFactorID=psf.AgileFactorID
WHERE
   s.StoreCategoryID = 1 AND af.Name  = '" + tag + "'"

SQL错误多部分标识符

2 个答案: