Sql 每个记录都有一个新行

我希望结果在满足条件的每个实例中生成一个新行。我使用的是CASE语句，但这不是方法，因为一旦满足第一个条件，它就会停止对字段的求值

SELECT 
Reviews.ReviewID, 
CASE 
    WHEN Score_CorrectID = 0 THEN 'Correct ID Right Party Authentication'  
    WHEN Score_ProperlyIdentified = 0 THEN 'PCA Properly Identified Itself'
    WHEN Score_MiniMiranda = 0 THEN 'Mini-Miranda'          
END AS [Error Type] 
FROM Reviews INNER JOIN PCAs ON Reviews.PCAID = PCAs.PCAID LEFT JOIN 
PCARebuttal ON Reviews.ReviewID = PCARebuttal.ReviewID 
WHERE 
 (Score_CorrectID = 0 OR Score_ProperlyIdentified = 0 OR Score_MiniMiranda = 
0)

这就产生了：

我想这样：

---

您可以使用

联合所有

而不是使用

案例

：

SELECT 
    Reviews.ReviewID, 
    'Correct ID Right Party Authentication' AS [Error Type] 
FROM Reviews 
    INNER JOIN PCAs ON Reviews.PCAID = PCAs.PCAID 
    LEFT JOIN PCARebuttal ON Reviews.ReviewID = PCARebuttal.ReviewID 
WHERE Score_CorrectID = 0 
UNION ALL
SELECT 
    Reviews.ReviewID, 
    'PCA Properly Identified Itself' AS [Error Type] 
FROM Reviews 
    INNER JOIN PCAs ON Reviews.PCAID = PCAs.PCAID 
    LEFT JOIN PCARebuttal ON Reviews.ReviewID = PCARebuttal.ReviewID 
WHERE Score_ProperlyIdentified = 0 
UNION ALL
SELECT 
    Reviews.ReviewID, 
    'Mini-Miranda' AS [Error Type] 
FROM Reviews 
    INNER JOIN PCAs ON Reviews.PCAID = PCAs.PCAID 
    LEFT JOIN PCARebuttal ON Reviews.ReviewID = PCARebuttal.ReviewID 
WHERE Score_MiniMiranda = 0 

---

您可以使用

union all

代替

case

：

SELECT 
    Reviews.ReviewID, 
    'Correct ID Right Party Authentication' AS [Error Type] 
FROM Reviews 
    INNER JOIN PCAs ON Reviews.PCAID = PCAs.PCAID 
    LEFT JOIN PCARebuttal ON Reviews.ReviewID = PCARebuttal.ReviewID 
WHERE Score_CorrectID = 0 
UNION ALL
SELECT 
    Reviews.ReviewID, 
    'PCA Properly Identified Itself' AS [Error Type] 
FROM Reviews 
    INNER JOIN PCAs ON Reviews.PCAID = PCAs.PCAID 
    LEFT JOIN PCARebuttal ON Reviews.ReviewID = PCARebuttal.ReviewID 
WHERE Score_ProperlyIdentified = 0 
UNION ALL
SELECT 
    Reviews.ReviewID, 
    'Mini-Miranda' AS [Error Type] 
FROM Reviews 
    INNER JOIN PCAs ON Reviews.PCAID = PCAs.PCAID 
    LEFT JOIN PCARebuttal ON Reviews.ReviewID = PCARebuttal.ReviewID 
WHERE Score_MiniMiranda = 0 

---

使用

应用
：

SELECT r.ReviewID, v.error_type
FROM Reviews r INNER JOIN
     PCAs
     ON r.PCAID = PCAs.PCAID LEFT JOIN 
     PCARebuttal pr
     ON r.ReviewID = pr.ReviewID OUTER APPLY
     (SELECT *
      FROM (VALUES (Score_CorrectID, 'Correct ID Right Party Authentication'),  
                   (Score_ProperlyIdentified, 'PCA Properly Identified Itself'),
                   (Score_MiniMiranda, 'Mini-Miranda')
           ) v(score, error_type)
      WHERE score = 0
     ) v        
WHERE (Score_CorrectID = 0 OR Score_ProperlyIdentified = 0 OR Score_MiniMiranda = 0);

也就是说，我可能只是将这些值连接到一个列中：

SELECT r.ReviewID,
       ( (CASE WHEN Score_CorrectID = 0 THEN 'Correct ID Right Party Authentication; ' ELSE '' END) +  
         (CASE WHEN Score_ProperlyIdentified = 0 THEN 'PCA Properly Identified Itself; ' ELSE '' END) +
         (CASE WHEN Score_MiniMiranda = 0 THEN 'Mini-Miranda;' ELSE '' END)
       ) as error_types
FROM Reviews r INNER JOIN
     PCAs
     ON r.PCAID = PCAs.PCAID LEFT JOIN 
     PCARebuttal pr
     ON r.ReviewID = pr.ReviewID OUTER APPLY
     (SELECT *
      FROM (VALUES ()
           ) v(score, error_type)
      WHERE score = 0
     ) v        
WHERE (Score_CorrectID = 0 OR Score_ProperlyIdentified = 0 OR Score_MiniMiranda = 0);

使用
应用
：

SELECT r.ReviewID, v.error_type
FROM Reviews r INNER JOIN
     PCAs
     ON r.PCAID = PCAs.PCAID LEFT JOIN 
     PCARebuttal pr
     ON r.ReviewID = pr.ReviewID OUTER APPLY
     (SELECT *
      FROM (VALUES (Score_CorrectID, 'Correct ID Right Party Authentication'),  
                   (Score_ProperlyIdentified, 'PCA Properly Identified Itself'),
                   (Score_MiniMiranda, 'Mini-Miranda')
           ) v(score, error_type)
      WHERE score = 0
     ) v        
WHERE (Score_CorrectID = 0 OR Score_ProperlyIdentified = 0 OR Score_MiniMiranda = 0);

也就是说，我可能只是将这些值连接到一个列中：

SELECT r.ReviewID,
       ( (CASE WHEN Score_CorrectID = 0 THEN 'Correct ID Right Party Authentication; ' ELSE '' END) +  
         (CASE WHEN Score_ProperlyIdentified = 0 THEN 'PCA Properly Identified Itself; ' ELSE '' END) +
         (CASE WHEN Score_MiniMiranda = 0 THEN 'Mini-Miranda;' ELSE '' END)
       ) as error_types
FROM Reviews r INNER JOIN
     PCAs
     ON r.PCAID = PCAs.PCAID LEFT JOIN 
     PCARebuttal pr
     ON r.ReviewID = pr.ReviewID OUTER APPLY
     (SELECT *
      FROM (VALUES ()
           ) v(score, error_type)
      WHERE score = 0
     ) v        
WHERE (Score_CorrectID = 0 OR Score_ProperlyIdentified = 0 OR Score_MiniMiranda = 0);

请添加您的源数据。是否要将reviews表中的每个review ID与所有三个文本合并？还是只有某些审查ID？任务的具体内容是什么？我希望每个实例都有一个单独的行，其中Score_x字段=0好的。使用多个表时，应使用表名或别名限定所有列。例如，Score_CorrectID位于哪个表中？那桌子的钥匙是什么？每个评论都有一个PCA和多个PCA。但是，PCA和PCARebuttals是否也连接在一起？你选择它们时，就好像有完全不同的东西一样。PCARebuttal是否有您也应该加入的PCAID？请添加您的源数据。是否要将reviews表中的每个review ID与所有三个文本合并？还是只有某些审查ID？任务的具体内容是什么？我希望每个实例都有一个单独的行，其中Score_x字段=0好的。使用多个表时，应使用表名或别名限定所有列。例如，Score_CorrectID位于哪个表中？那桌子的钥匙是什么？每个评论都有一个PCA和多个PCA。但是，PCA和PCARebuttals是否也连接在一起？你选择它们时，就好像有完全不同的东西一样。PCAREBUTAL是否有您也应该加入的PCAID？