Question

我有一个c＃网页，我正在使用SQL作为数据库

我需要将表中的数据显示为gridview

SQL：我有一个表格如下

Exec_Date                     Plat       Pass     Fail 
----------------------------------------------------------------
 2017-02-19 12:32:43.570      MSSQL       10       12
 2017-02-19 12:32:43.570      MSSQL       10       12
 2017-02-18 12:32:43.570      Sybase      10       12
 2017-02-18 12:32:43.570      Oracle      10       12

我想将表格转换为演示文稿的自定义格式

Status     18/02    19/02
-------------------------
Pass       20        20   
Fail       24        24

以上可能由Pivot完成吗？如果是这样，任何人都可以提出一些想法吗？

到目前为止，我已经尝试了以下内容，而@Names没有解析查询中的变量值

create table #TempTable
(Exec_Date  varchar(max),
 Pass  int,
 Ref_Status varchar(max)
 )


 Insert into #TempTable
 select  cast(Exec_Date as DATE) as Date,SUM(Pass) as Pass,'PASS' from F_Exec where cast(Exec_Date as DATE) >= '2017-02-17' and cast(Exec_Date as DATE) <= '2017-02-20'  group by  Exec_Date,Pass


DECLARE @Names varchar(max)
SELECT  @Names = COALESCE(@Names + '],[', '[') +  Exec_Date FROM #TempTable

select @Names=@Names+']'


 Select * from #TempTable pivot
(SUM(Pass) for Exec_Date IN (@Names) )as PivotTable

变量@Names不被视为变量。如果我从变量中手动替换结果值

Answer 1

试试这段代码：

declare @tbl table (Exec_Date datetime, Plat varchar(max), Pass int, Fail int)

insert into @tbl(Exec_Date , Plat , Pass , Fail ) values
('2017-02-19 12:32:43.570', 'MSSQL',10,12),
('2017-02-19 12:32:43.570', 'MSSQL',10,12),
('2017-02-18 12:32:43.570', 'Sybase',10,12),
('2017-02-18 12:32:43.570', 'Oracle',10,12)

select * from
    (
        select Date,Status,sum(Success) success from 
        (

            select left(convert(varchar(20),Exec_Date,103),5) as [Date],Pass,Fail from @tbl
        ) as baseData

        unpivot
        (
            Success for Status in (Pass,Fail)

        ) as tblUnPivot

        group by date ,status
    ) as baseData

pivot
(
    sum(success)
    for Date in ([18/02],[19/02])
) as tblPivot

order by Status

Answer 2

我得到了解决方案

声明了nvarchar变量并连接了查询＆amp;动态列名称

 DECLARE @sqlstring nvarchar(MAX)
 SET @sqlstring =N'
 Select * from #TempTable pivot (SUM(Pass) for Exec_Date IN (' +@Names+') )as PivotTable;';

  EXEC sp_executesql @sqlstring;

如何将SQL表转换为自定义的gridview

2 个答案: