Question

我有一个使用命令数据透视表构建的表。我正在编写一个程序（C＃），它将sql查询的结果插入到excel文件中。我使用库ClosedXML.Excel，System.Data.SqlClient;。我在插入值数据透视表（1，1）时遇到问题，其余值插入到excel文件中。数据类型错误：1、1。在程序中，我使用以下数据类型。

switch (dr.GetDataTypeName(j))
{
case "Varchar2":
    string s = dr.GetString(j);
    if (s.Substring(0, 1) == "=")
        s = " " + s;
    ws.Cell(row, j + 1).Value = s;
    break;
case "decimal":
    ws.Cell(row, j + 1).Value = dr.GetDecimal(j);
    break;
case "datetime":
    ws.Cell(row, j + 1).Value = dr.GetDateTime(j);
    break;
case "int":
    ws.Cell(row, j + 1).Value = dr.GetInt32(j);
    break;
case "varchar":
    ws.Cell(row, j + 1).Value = dr.GetString(j);
    break;
default:
    break;
}

mssql查询

DECLARE @employeeA NVARCHAR (MAX) SET @employeeA = 'Bob'
DECLARE @cols NVARCHAR (MAX)
SELECT @cols = COALESCE (@cols + ',[' + CONVERT(NVARCHAR, [date_A], 106) + ']',
               '[' + CONVERT(NVARCHAR, [date_A], 106) + ']')
               FROM    (SELECT DISTINCT [date_A] FROM [dbo].[#TABLE_1]) PV 
               ORDER BY [date_A]
DECLARE @queryD NVARCHAR(MAX)
SET @queryD = '
SELECT * into [dbo].[##RESULT] FROM (
select
Qty as numrow
,groups
,employee
,date_A
,''test1'' as NAMEROW
from [dbo].[#TABLE_1]
) x
             PIVOT
             (
                 sum([numrow])
                 FOR [date_A] IN (' + @cols + ')
            ) p
where employee = '''+@employeeA+'''
'   
       
EXEC(@queryD)
select * from [dbo].[##RESULT]

结果查询：

groups	employee	NAMEROW	07.11.2018	08.11.2018
group1	Bob	         test1	1	         1

在PIVOT查询中更改数据类型

0 个答案: