Import / Export Excel Spreadsheet Data into SQL Server Database Table Using SqlBulkCopy

Using SqlBulkCopy to Import Excel Spreadsheet Data into SQL Server
Let's take an Excel Workbook with a worksheet, called Data, that contains 1000 rows of nonsense data broken into 2 columns, ID and Data.


I want to copy this data into a SQL Server Database Table, called ExcelData, with the same schema.


Just a little bit of code transfers the data from the Excel Spreadsheet into the SQL Server Database Table:
// Connection String to Excel Workbook
string excelConnectionString = @"Provider=Microsoft .Jet.OLEDB.4.0;Data Source=Book1.xls;Extended Properties=""Excel 8.0;HDR=YES;""";
// Create Connection to Excel Workbook
using (OleDbConnection connection = new OleDbConnection(excelConnectionString))
{
OleDbCommand command = new OleDbCommand ("Select ID,Data FROM [Data$]", connection);
connection.Open();

// Create DbDataReader to Data Worksheet
using (DbDataReader dr = command.ExecuteReader())
{
// SQL Server Connection String
string sqlConnectionString = "Data Source=.; Initial Catalog=Test;Integrated Security=True";
// Bulk Copy to SQL Server
using (SqlBulkCopy bulkCopy = new SqlBulkCopy(sqlConnectionString))
{
bulkCopy.DestinationTableName = "ExcelData";
bulkCopy.WriteToServer(dr);
}
}
}