SQL分组由字符串＆amp;部分组成以逗号分隔

Question

我正在尝试对字符串中的数据进行分组，例如'Item-％'。问题是这可以在字符串中的任何位置。更复杂的是，我需要返回仅包含相同项目％文本的逗号分隔列表。

以下是数据的外观：

DocketQuestionsAndAnswers

我想返回类似的数据：

到目前为止我的代码是：

SELECT 
    JobNumber, 
    substring(Answer, patindex('Item%', answer) - 1, 7), 
    Notes = 
       STUFF((SELECT ', ' + rtrim(Answer)
              FROM DocketQuestionsAndAnswers b 
              WHERE b.JobNumber = a.JobNumber
                AND Screen like '%cut%'
                AND Answer like '%item%'
              FOR XML PATH('')), 1, 2, '')
FROM 
    DocketQuestionsAndAnswers a
WHERE 
    JOBNUMBER IN (SELECT JobNumber
                  FROM /* Query to filter job number */)
GROUP BY 
    JobNumber, 
    substring(Answer, patindex('Item%', answer) - 1, 7)
HAVING 
    substring(Answer, patindex('Item%', answer) - 1, 7) like '%item-%'

这只能让我得到这些数据：

如何只获取每个项目的逗号分隔值？我的示例只包含一个作业编号，但基于我的子查询，我需要它。怎么办呢？

Answer 1

不会为您的STUFF子查询添加额外条件以获得答案吗？

SELECT 
JobNumber, 
substring(Answer, patindex('%Item%', answer), 7), 
Notes = 
   STUFF((SELECT ', ' + rtrim(Answer)
          FROM DocketQuestionsAndAnswers b 
          WHERE b.JobNumber = a.JobNumber
            AND substring(a.Answer, patindex('%Item%', a.answer), 7) = 
               substring(b.Answer, patindex('%Item%', b.answer) , 7)
            AND Screen like '%cut%'
            AND Answer like '%item%'
          FOR XML PATH('')), 1, 2, '')
FROM 
DocketQuestionsAndAnswers a
WHERE 
JOBNUMBER IN (SELECT JobNumber
              FROM /* Query to filter job number */)
GROUP BY 
JobNumber, 
substring(Answer, patindex('%Item%', answer), 7)   --All patindexes changed from 'Item%'
HAVING 
substring(Answer, patindex('%Item%', answer), 7) like '%item-%'