SqlServer的两种插入方式效率对比

  protected void button1_Click(object sender, EventArgs e)

        {

            DataTable dtSource = new DataTable();

            dtSource.Columns.Add("Name", typeof(string));

            dtSource.Columns.Add("Address", typeof(string));

 

            DataRow dr;

 

            for (int i = 0; i < 100 * 100; i++)

            {

                dr = dtSource.NewRow();

                dr["Name"] = "Name" + i;

                dr["Address"] = "Address" + i;

 

                dtSource.Rows.Add(dr);

            }

 

            //将内存表dt中的1W条数据一次性插入到t_Data表中的相应列中 

            System.Diagnostics.Stopwatch st = new System.Diagnostics.Stopwatch();

            st.Start();

            string connStr = ConfigurationManager.ConnectionStrings["conn"].ConnectionString;

            using (SqlBulkCopy copy = new SqlBulkCopy(connStr))

            {

                //1 指定数据插入目标表名称 

                copy.DestinationTableName = "Student";

 

                //2 告诉SqlBulkCopy对象 内存表中的 OrderNO1和Userid1插入到OrderInfos表中的哪些列中 

                copy.ColumnMappings.Add("Name", "Name");

                copy.ColumnMappings.Add("Address", "Address");

 

                //3 将内存表dt中的数据一次性批量插入到OrderInfos表中 

                copy.WriteToServer(dtSource);

            }

            st.Stop();

           this.lblPL.InnerText="数据插入成功，总耗时为:" + st.ElapsedMilliseconds + "毫秒";

 

        }

protected void button2_Click(object sender, EventArgs e)

        {

            DataTable dtSource = new DataTable();

            dtSource.Columns.Add("ID", typeof(int));

            dtSource.Columns.Add("Name", typeof(string));

            dtSource.Columns.Add("Address", typeof(string));

 

            DataRow dr;

 

            for (int i = 0; i < 100 * 100; i++)

            {

                dr = dtSource.NewRow();

                dr["Name"] = "Name" + i;

                dr["Address"] = "Address" + i;

 

                dtSource.Rows.Add(dr);

            }

 

            System.Diagnostics.Stopwatch st = new System.Diagnostics.Stopwatch(); //计算时间 

            st.Start();

            string conn = ConfigurationManager.ConnectionStrings["conn"].ConnectionString;     //连接数据库 

            string sqlText = "select * from Student";          //SQL语句，用于查出符合条件的数据库数据 

 

            //当上述工作完成之后，我们调用SqlDataAdapter的Fill()方法，将查询出来的数据表内容填充的一张DataTable里面  

            SqlDataAdapter SDA = new SqlDataAdapter(sqlText, conn);

            SDA.Fill(dtSource);

            //这个SqlCommandBuilder用来自动生成添加、删除、修改的语句，注意这个参数是刚才建立的SqlDataAdapter。 

            SqlCommandBuilder SCB = new SqlCommandBuilder(SDA);

            SDA.Update(dtSource);         //数据录入 

            st.Stop();

           this.lblCT.InnerText="数据插入成功，总耗时为:" + st.ElapsedMilliseconds + "毫秒";

 

        }