Question

string path = string.Concat(Server.MapPath("~/TempFiles/"), FileUpload1.FileName);
//Save File as Temp then you can delete it if you want 
FileUpload1.SaveAs(path);


string excelConnectionString = string.Format("Provider=Microsoft.ACE.OLEDB.12.0;Data Source={0};Extended Properties=Excel 8.0", path);

// Create Connection to Excel Workbook 
using (OleDbConnection connection =
             new OleDbConnection(excelConnectionString))
{
    OleDbCommand command = new OleDbCommand
            ("Select * FROM [Sheet1$]", connection);

    connection.Open();

    // Create DbDataReader to Data Worksheet 
    using (DbDataReader dr = command.ExecuteReader())
    {

        // SQL Server Connection String 
        string sqlConnectionString = @conn;

        // Bulk Copy to SQL Server 
        using (SqlBulkCopy bulkCopy =
                   new SqlBulkCopy(sqlConnectionString))
        {
            bulkCopy.DestinationTableName ="Table1";
            bulkCopy.WriteToServer(dr);
            Label1.Text = "The Client data has been exported successfully from Excel to SQL";
        }
    }
}

我正在尝试将数据从excel导入到SQL Server，它工作正常，直到我没有传递日期，但现在我想将日期传递给SQL Server，它提供错误，因为数据类型不匹配。

任何人都有逻辑或请建议我能做些什么......

Answer 1

从excel读取的DateTime是OLE自动化日期，在插入sql server之前必须将其转换为c＃DateTime。从excel读取日期时，它将是双倍值。您可以使用DateTime.FromOADate将double值转换为DateTime。您可以使用SqlBulkCopy.WriteToServer(DataTable table)，此方法允许您传递数据表。您可以使用require格式更改数据表中的日期，并使用它来在sql server中保存批量数据。您可以将Excel数据导入数据表，article可以为您提供帮助。

DateTime dt = DateTime.FromOADate(double.Parse(stringVariableContainingDateTime));

Answer 2

Excel表格中的列可能不是有效的日期格式。

将其更改为日期类型。

Select the Column in the Excel Sheet -> Right Click -> Format Cells ->
Number Tab -> Select Date -> Choose your desired Type -> Ok

然后你尝试导入......

Answer 3

它的工作方式我尝试将其转换为datatble den change数据类型，然后插入

 string sqlConnectionString = @conn;
command.CommandType = CommandType.Text;
                OleDbDataAdapter objAdapter1 = new OleDbDataAdapter(command);
                DataTable dt = new DataTable();
                DataSet objDataset1 = new DataSet();

                objAdapter1.Fill(dt);

                for (int i = 0; i < dt.Rows.Count; i++)
                {
                    if (dt.Rows[0][5].ToString() != "")
                    {
                        DateTime dt1 = cf.texttodb(dt.Rows[0][5].ToString());
                        dt.Rows[i][5] = dt1;
                    }}
 using (SqlBulkCopy bulkCopy =
                               new SqlBulkCopy(sqlConnectionString))
                {
                    bulkCopy.DestinationTableName = "Tablename";
                    bulkCopy.WriteToServer(dt);
                    Label1.Text = "The Client data has been exported successfully from Excel to SQL";
                }

在这里我创建了一个函数txtdob，它将我的字符串转换为日期时间格式谢谢如果你觉得如此标记为答案我试过它

将数据从Excel导入到Sql Server 2008＃2

3 个答案: