数据透视表查询中的计数不正确

时间：2014-12-10 04:42:18

标签： sql-server sql-server-2008-r2 pivot

我有两个表，其中包含一些记录，如下面的sql fiddle所示。

我的示例数据是：

CREATE TABLE [dbo].[test_One](
    [ID] [varchar](10) NULL,
    [Col1] [varchar](20) NULL,
    [Col2] [varchar](20) NULL,
    [ColumnDate] [datetime] NULL,
    [ColumnTime] [time](7) NULL
)

CREATE TABLE [dbo].[test_two](
    [Slno] [varchar](10) NULL,
    [ID] [varchar](10) NULL,
    [Name] [varchar](max) NULL,
    [Date1] [datetime] NULL,
    [Time1] [datetime] NULL,
    [Date2] [datetime] NULL,
    [Time2] [datetime] NULL
) 

INSERT [dbo].[test_two] ([Slno], [ID], [Name], [Date1], [Time1], [Date2], [Time2]) VALUES (N'115', N'47', N'DateOne', CAST(0x0000901A00000000 AS DateTime), CAST(0x0000000000000000 AS DateTime), CAST(0x0000901B00000000 AS DateTime), CAST(0x00000000018B3BB0 AS DateTime))
INSERT [dbo].[test_two] ([Slno], [ID], [Name], [Date1], [Time1], [Date2], [Time2]) VALUES (N'116', N'47', N'DateTwo', CAST(0x0000901C00000000 AS DateTime), CAST(0x0000000000000000 AS DateTime), CAST(0x0000901D00000000 AS DateTime), CAST(0x00000000018B3BB0 AS DateTime))

INSERT [dbo].[test_One] ([ID], [Col1], [Col2], [ColumnDate], [ColumnTime]) VALUES (N'47', N'11601', N'782', CAST(0x0000901A00000000 AS DateTime), CAST(0x070075033F430000 AS Time))
INSERT [dbo].[test_One] ([ID], [Col1], [Col2], [ColumnDate], [ColumnTime]) VALUES (N'47', N'11602', N'504', CAST(0x0000901A00000000 AS DateTime), CAST(0x07809A19CB4B0000 AS Time))
INSERT [dbo].[test_One] ([ID], [Col1], [Col2], [ColumnDate], [ColumnTime]) VALUES (N'47', N'11603', N'110', CAST(0x0000901A00000000 AS DateTime), CAST(0x0700C02F57540000 AS Time))
INSERT [dbo].[test_One] ([ID], [Col1], [Col2], [ColumnDate], [ColumnTime]) VALUES (N'47', N'11604', N'634', CAST(0x0000901A00000000 AS DateTime), CAST(0x0780E545E35C0000 AS Time))
INSERT [dbo].[test_One] ([ID], [Col1], [Col2], [ColumnDate], [ColumnTime]) VALUES (N'47', N'11601', N'400', CAST(0x0000901B00000000 AS DateTime), CAST(0x07002D2255650000 AS Time))
INSERT [dbo].[test_One] ([ID], [Col1], [Col2], [ColumnDate], [ColumnTime]) VALUES (N'47', N'11601', N'376', CAST(0x0000901B00000000 AS DateTime), CAST(0x07804A62F8430000 AS Time))
INSERT [dbo].[test_One] ([ID], [Col1], [Col2], [ColumnDate], [ColumnTime]) VALUES (N'47', N'11602', N'989', CAST(0x0000901B00000000 AS DateTime), CAST(0x07007078844C0000 AS Time))
INSERT [dbo].[test_One] ([ID], [Col1], [Col2], [ColumnDate], [ColumnTime]) VALUES (N'47', N'11602', N'949', CAST(0x0000901B00000000 AS DateTime), CAST(0x0780958E10550000 AS Time))
INSERT [dbo].[test_One] ([ID], [Col1], [Col2], [ColumnDate], [ColumnTime]) VALUES (N'47', N'11603', N'111', CAST(0x0000901C00000000 AS DateTime), CAST(0x0700DD6A825D0000 AS Time))
INSERT [dbo].[test_One] ([ID], [Col1], [Col2], [ColumnDate], [ColumnTime]) VALUES (N'47', N'11603', N'840', CAST(0x0000901C00000000 AS DateTime), CAST(0x078002810E660000 AS Time))
INSERT [dbo].[test_One] ([ID], [Col1], [Col2], [ColumnDate], [ColumnTime]) VALUES (N'47', N'11603', N'217', CAST(0x0000901C00000000 AS DateTime), CAST(0x070020C1B1440000 AS Time))
INSERT [dbo].[test_One] ([ID], [Col1], [Col2], [ColumnDate], [ColumnTime]) VALUES (N'47', N'11604', N'420', CAST(0x0000901C00000000 AS DateTime), CAST(0x078045D73D4D0000 AS Time))
INSERT [dbo].[test_One] ([ID], [Col1], [Col2], [ColumnDate], [ColumnTime]) VALUES (N'47', N'11604', N'333', CAST(0x0000901D00000000 AS DateTime), CAST(0x07008DB3AF550000 AS Time))
INSERT [dbo].[test_One] ([ID], [Col1], [Col2], [ColumnDate], [ColumnTime]) VALUES (N'47', N'11604', N'782', CAST(0x0000901D00000000 AS DateTime), CAST(0x0780B2C93B5E0000 AS Time))
INSERT [dbo].[test_One] ([ID], [Col1], [Col2], [ColumnDate], [ColumnTime]) VALUES (N'47', N'11604', N'504', CAST(0x0000901D00000000 AS DateTime), CAST(0x0700D8DFC7660000 AS Time))
INSERT [dbo].[test_One] ([ID], [Col1], [Col2], [ColumnDate], [ColumnTime]) VALUES (N'47', N'11604', N'110', CAST(0x0000901D00000000 AS DateTime), CAST(0x0780F51F6B450000 AS Time))
INSERT [dbo].[test_One] ([ID], [Col1], [Col2], [ColumnDate], [ColumnTime]) VALUES (N'47', N'11601', N'634', CAST(0x0000901E00000000 AS DateTime), CAST(0x07003DFCDC4D0000 AS Time))
INSERT [dbo].[test_One] ([ID], [Col1], [Col2], [ColumnDate], [ColumnTime]) VALUES (N'47', N'11604', N'400', CAST(0x0000901E00000000 AS DateTime), CAST(0x0780621269560000 AS Time))
INSERT [dbo].[test_One] ([ID], [Col1], [Col2], [ColumnDate], [ColumnTime]) VALUES (N'47', N'11601', N'376', CAST(0x0000901E00000000 AS DateTime), CAST(0x07008828F55E0000 AS Time))
INSERT [dbo].[test_One] ([ID], [Col1], [Col2], [ColumnDate], [ColumnTime]) VALUES (N'47', N'11601', N'989', CAST(0x0000901E00000000 AS DateTime), CAST(0x070047936D670000 AS Time))
INSERT [dbo].[test_One] ([ID], [Col1], [Col2], [ColumnDate], [ColumnTime]) VALUES (N'47', N'11603', N'949', CAST(0x0000901F00000000 AS DateTime), CAST(0x078064D310460000 AS Time))
INSERT [dbo].[test_One] ([ID], [Col1], [Col2], [ColumnDate], [ColumnTime]) VALUES (N'47', N'11604', N'111', CAST(0x0000901F00000000 AS DateTime), CAST(0x07008AE99C4E0000 AS Time))
INSERT [dbo].[test_One] ([ID], [Col1], [Col2], [ColumnDate], [ColumnTime]) VALUES (N'47', N'11601', N'840', CAST(0x0000901F00000000 AS DateTime), CAST(0x0700F2ADFE560000 AS Time))
INSERT [dbo].[test_One] ([ID], [Col1], [Col2], [ColumnDate], [ColumnTime]) VALUES (N'47', N'11601', N'217', CAST(0x0000901F00000000 AS DateTime), CAST(0x07005A72605F0000 AS Time))
INSERT [dbo].[test_One] ([ID], [Col1], [Col2], [ColumnDate], [ColumnTime]) VALUES (N'47', N'11601', N'420', CAST(0x0000901F00000000 AS DateTime), CAST(0x0700C236C2670000 AS Time))

我已经尝试过查询：

SELECT col1,Total,TGrp,AvailableIn,[DateOne],[DateTwo],(Total - ([DateOne]+[DateTwo])) as Others
FROM                     
(
    SELECT  v.col1,g.Name as Name,c.Total as Total,
    x.AvailableIn,
    (select count(distinct Name) from test_two) TGrp
    FROM test_one AS v   
    INNER JOIN test_two g ON g.ID= '47' 
    AND ( CONVERT(DATETIME, CONVERT(VARCHAR, v.ColumnDate, 106))
                                                + CONVERT(DATETIME, CONVERT(VARCHAR, v.ColumnTime, 108)) >= g.Date1
                                                + g.Time1
    AND CONVERT(DATETIME, CONVERT(VARCHAR, v.ColumnDate, 106))
                                                + CONVERT(DATETIME, CONVERT(VARCHAR, v.ColumnTime, 108)) <= g.Date2
                                                + g.Time2
                                        )                                                            
    inner join
    (
        select col1,count(*) as Total
        FROM test_one 
        group by col1
    ) c 
    on c.col1 = v.col1
    join
    (
        select ID,count(Available) AS AvailableIn
        from
        (
            select ID,CASE WHEN Name IN('DateOne','DateTwo') THEN 1 END AS Available
            from test_two
        ) as pt
        group by ID
    ) x
    on x.ID= '47'
) p                     
PIVOT                
(            
    count(Name)                        
    FOR Name IN ( [DateOne],[DateTwo] )                        
) AS pvt

SQL小提琴：http://sqlfiddle.com/#!3/f4678/1

预期结果：

col1   Total  TGrp  AvailableIn  DateOne  DateTwo  Others              
---------------------------------------------------------
11601   9      2        1           3        0       6
11602   3      2        1           3        0       0
11603   5      2        2           1        3       1
11604   8      2        2           1        5       2

上述结果的说明：结果在AvailableIn列显示可用组时是正确的，第一行的计数为1，因为DateOne专栏有价值。对其他人也一样。

但获得结果是：

col1   Total  TGrp  AvailableIn  DateOne  DateTwo  Others              
---------------------------------------------------------
11601   9      2        2           3        0       6
11602   3      2        2           3        0       0
11603   5      2        2           1        3       1
11604   8      2        2           1        5       2

注意：问题出现在AvailableIn列中，结果中的错误计数。

1 个答案:

答案 0 :(得分：3)

问题在于，您不计算每个AvailableIN的{​​{1}}，您基本上得到col1和DateOne的总数，等于2，因为您在DateTwo中有2个值。我会将您的查询重写为类似于：

的内容 
test_two

见SQL Fiddle with Demo。这使用一些相关的子查询来获取每个;with data as ( select v.Col1, Total = (select count(*) from dbo.test_One t where v.Col1 = t.Col1), TGrp = (select count(distinct Name) from test_two), g.Name from dbo.test_One v INNER JOIN test_two g ON g.ID= '47' AND (CONVERT(DATETIME, CONVERT(VARCHAR, v.ColumnDate, 106)) + CONVERT(DATETIME, CONVERT(VARCHAR, v.ColumnTime, 108)) >= g.Date1 + g.Time1 AND CONVERT(DATETIME, CONVERT(VARCHAR, v.ColumnDate, 106)) + CONVERT(DATETIME, CONVERT(VARCHAR, v.ColumnTime, 108)) <= g.Date2 + g.Time2 ) ) select Col1, Total, TGrp, AvailableIN, DateOne, DateTwo, Others = (Total - ([DateOne]+[DateTwo])) from ( select Col1, Total, TGrp, Name, AvailableIN = (select COUNT(distinct name) from data a where a.Col1 = d.Col1 group by a.Col1) from data d ) src pivot ( count(Name) for Name in (DateOne, DateTwo) ) piv; 值的计数并给出结果：

col1
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