删除sql中的组列表

Question

在我的查询中

SELECT  
    [Dt],
    [ItemRelation],
    [DocumentNum],
    [DocumentDate],
    [CalendarYear]
FROM
    [Action].[dbo].[testtable]

这些列是分组：

  [ItemRelation]
  [DocumentNum]
  [CalendarYear]

我必须删除的任何组。

所以这里有查询数据

DECLARE @LIST_ABOVE TABLE (ItemRelation NVARCHAR(10),
                           DocumentNum NVARCHAR(10),
                           CalendarYear INT)

INSERT INTO @LIST_ABOVE (ItemRelation, DocumentNum, CalendarYear)
VALUES
    (11511,5,2017),
    (11628,2,2017),
    (11661,163,2017),
    (11692,82,2017),
    (11709,143,2017),
    (13189,33,2017),
    (13284,2,2017),
    (158009,12,2017),
    (158121,63,2017),
    (11514,60,2017),
    (11628,3,2017),
    (11671,13,2017),
    (11706,8,2017),
    (11741,163,2017),
    (13191,7,2017),
    (13284,3,2017),
    (158010,12,2017),
    (158122,41,2017),
    (11592,33,2017),
    (11628,140,2017),
    (11683,70,2017),
    (11706,50,2017),
    (13163,70,2017),
    (13191,33,2017),
    (13322,4,2017),
    (158010,89,2017),
    (158122,62,2017),
    (11594,9,2017),
    (11633,75,2017),
    (11683,140,2017),
    (11706,51,2017),
    (13163,75,2017),
    (13250,83,2017),
    (13322,36,2017),
    (158010,95,2017),
    (158122,63,2017),
    (11623,71,2017),
    (11634,154,2017),
    (11683,154,2017),
    (11706,58,2017),
    (13163,131,2017),
    (13269,50,2017),
    (157186,57,2017),
    (158121,41,2017),
    (11626,29,2017),
    (11661,143,2017),
    (11683,163,2017),
    (11709,81,2017),
    (13189,13,2017),
    (13269,66,2017),
    (157192,56,2017),
    (158121,62,2017)

当我运行这个脚本

DELETE T FROM [Action].[dbo].testtable T
WHERE EXISTS (SELECT 1 
              FROM @LIST_ABOVE 
              WHERE T.[ItemRelation] = [ItemRelation] 
                AND T.[DocumentNum] = [DocumentNum] 
                AND T.[CalendarYear] = [CalendarYear]);

从表中，未删除具有上述组的行。每组有40行。

所以必须删除40 * 52 = 2080行。

如何删除这些组的行？

我只是不想手动做。但我无法删除它们。

Answer 1

首先，您已将ItemRelation和DocumentNum声明为NVARCHAR（10），但将它们作为整数插入。本身并不是问题，但如果测试表中的数据类型是数字，那么数据类型不匹配就可以解释它。

DELETE T 
FROM [Action].[dbo].testtable AS T
INNER JOIN @LIST_ABOVE AS LA
ON LA.ItemRelation = T.ItemRelation
AND LA.DocumentNum = T.DocumentNum
AND LA.CalendarYear = T.CalendarYear

如果这不起作用，那么我建议尝试删除@LIST_ABOVE中的第一项

DELETE FROM [Action].[dbo].testtable AS T
WHERE T.ItemRelation = 11511
AND T.DocumentNum = 5
AND T.CalendarYear = 2017

最后，您需要确定没有删除的原因。数据类型不匹配似乎最有可能，[Action]中的数据不存在。[dbo] .testtable是另一种可能性。