数据库插入速度比较

一、使用EF插入，用时8135ms。

  　　　　　　Stopwatch stopWatch = new Stopwatch();
            stopWatch.Start();
            using (var content = new HardwareContext())
            {
                for(int i = 20; i < 1000; i++)
                {
                    HardwareLimited hardwareLimited = new HardwareLimited
                    {
                        id = i,
                        DataId = "00000000000502",
                        IsEnable = true
                    };
                    content.HardwareLimiteds.Add(hardwareLimited);
                }
                content.SaveChanges();
            }
            stopWatch.Stop();
            MessageBox.Show(stopWatch.ElapsedMilliseconds.ToString());

二、直接插入，用时1.745ms。

            string sql = "";
            Stopwatch stopWatch = new Stopwatch();
            stopWatch.Start();
            for (int i = 20; i < 1000; i++)
            {
                sql += "  insert into  [ProjectTS].[dbo].[MSHardwareLimited] (id,DataId,IsEnable)values('"+i.ToString()+ "','00000000000502',1) ";
            }
            DBHelp.ExecuteSql(sql);
            stopWatch.Stop();
            MessageBox.Show(stopWatch.ElapsedMilliseconds.ToString());

三、使用SqlBulkCopy插入，用时244ms。

   　　　　  DataTable dataTable = new DataTable();
            dataTable.Columns.Add("id", typeof(int));
            dataTable.Columns.Add("DataId", typeof(string));
            dataTable.Columns.Add("IsEnable", typeof(bool));
            for (int i = 20; i < 1000; i++)
            {
                DataRow dataRow = dataTable.NewRow();
                dataRow["id"] = i;
                dataRow["DataId"] = "00000000000502";
                dataRow["IsEnable"] = true;
                dataTable.Rows.Add(dataRow);
            }
            Stopwatch stopWatch = new Stopwatch();
            stopWatch.Start();
            using (SqlConnection conn = new SqlConnection(DBHelp.connectString))
            {
                conn.Open();
                using (SqlBulkCopy bulk = new SqlBulkCopy(DBHelp.connectString))
                {
                    bulk.BatchSize = 10000;
                    bulk.DestinationTableName = "[ProjectTS].[dbo].[MSHardwareLimited]";
                    bulk.ColumnMappings.Add("id", "id");
                    bulk.ColumnMappings.Add("DataId", "DataId");
                    bulk.ColumnMappings.Add("IsEnable", "IsEnable");
                    bulk.WriteToServer(dataTable);
                }
                conn.Close();
                conn.Dispose();
            }
            stopWatch.Stop();
            MessageBox.Show(stopWatch.ElapsedMilliseconds.ToString());