使用SqlBulkCopy类批量复制大数据

using System;
using System.Configuration;
using System.Data;
using System.Data.SqlClient;
using System.Diagnostics;

namespace SqlBulkCopy1
{
    class Program
    {
        static void Main(string[] args)
        {
            Stopwatch sw = new Stopwatch();
            for (int multiply = 0; multiply < 10; multiply++)
            {
                DataTable dt = GetTableSchema();
                for (int count = multiply * 100000; count < (multiply + 1) * 100000; count++)
                {
                    DataRow r = dt.NewRow();
                    r[0] = count;
                    r[1] = string.Format("username-{0}", count * multiply);
                    r[2] = string.Format("userpwd-{0}", count * multiply);
                    r[3] = string.Format("address-{0}", count * multiply);
                    dt.Rows.Add(r);
                }
                sw.Start();
                BulkToDB(dt);
                sw.Stop();
                Console.WriteLine(string.Format("已消耗时间{0}毫秒", sw.ElapsedMilliseconds)); 
            }
            Console.ReadLine(); 
        }
        public static void BulkToDB(DataTable dt)
        { 
            SqlConnection con = new SqlConnection(ConfigurationManager.ConnectionStrings["SqlConnString"].ConnectionString);
            SqlBulkCopy bulkCopy = new SqlBulkCopy(con);
            bulkCopy.DestinationTableName = "USERINFO";
            bulkCopy.BatchSize = dt.Rows.Count;
            try
            {
                con.Open();
                if (dt != null && dt.Rows.Count != 0)
                    bulkCopy.WriteToServer(dt);
            }
            catch (Exception)
            {
                
                throw;
            }
        }

        public static DataTable GetTableSchema()
        {
            DataTable dt = new DataTable();
            dt.Columns.AddRange(new DataColumn[] { 
            new DataColumn("id",typeof(int)),
            new DataColumn("username",typeof(string)),
            new DataColumn("userpwd",typeof(string)),
            new DataColumn("address",typeof(string))
            });
            return dt;
        }
    }
}

100W条数据消耗时间：