sqlbulkcopy 批量更新 数据库

转载： http://blog.csdn.net/wangzh300/article/details/7382506

private static void DataTableToSQLServer( DataTable dt)
{
    string connectionString = GetConnectionString();  

    using (SqlConnection destinationConnection =new SqlConnection(connectionString))
    {
        destinationConnection.Open();  

        using (SqlBulkCopy bulkCopy =new SqlBulkCopy(destinationConnection))
        {  

            try
            {  

                bulkCopy.DestinationTableName = "T_EIInformation";//要插入的表的表明
                bulkCopy.ColumnMappings.Add("Email", "Email");//映射字段名 DataTable列名 ,数据库 对应的列名
                bulkCopy.ColumnMappings.Add("author", "author");
                bulkCopy.ColumnMappings.Add("Title", "Title");
                bulkCopy.ColumnMappings.Add("Type", "Type");
                bulkCopy.ColumnMappings.Add("confName", "confName");
                bulkCopy.ColumnMappings.Add("Language", "Language");
                bulkCopy.ColumnMappings.Add("Publicationyear", "Publicationyear");
                bulkCopy.ColumnMappings.Add("Conferencelocation", "Conferencelocation");
                bulkCopy.WriteToServer(dt);
            }
            catch (Exception ex)
            {
                Console.WriteLine(ex.Message);
            }
            finally
            {
                // Close the SqlDataReader. The SqlBulkCopy
                // object is automatically closed at the end
                // of the using block.  

            }
        }  

    }  

}