.net使用SqlBulkCopy極速插入數(shù)據(jù)到SQL Server

剛進(jìn)公司時(shí)，領(lǐng)導(dǎo)說(shuō)物流水系統(tǒng)有一個(gè)問(wèn)題：發(fā)送水票速度很慢，每發(fā)送一次就得等10多分鐘，問(wèn)我有沒(méi)有解決方法，時(shí)間原因一直沒(méi)去研究。

今天早上reader 上收到cnblogs的訂閱里看到一個(gè)關(guān)于SQL語(yǔ)句快速插入的文章，提到SqlBulkCopy，感覺(jué)不錯(cuò)，按他的測(cè)試SqlBulkCopy要比普通插入快近30倍，

按這個(gè)來(lái)算，我們那個(gè)發(fā)水票的時(shí)間就會(huì)由 10分鐘-->20秒，這可太神奇了。

于是乎，下demo，測(cè)試，改成自己一般使用的方法測(cè)試，NND，還真可以說(shuō)是極速。

 在此貼上我的Demo:UploadFiles//SqlBulkCopy.rar

using System;
using System.Diagnostics;
using System.Data;
using System.Data.SqlClient;
using Microsoft.ApplicationBlocks.Data;

namespace ConsoleAppInsertTest
{
    class Program
    {
        static int count = 1000000;           //插入的條數(shù)
        static void Main(string[] args)
        {

            long sqlBulkCopyInsertRunTime = SqlBulkCopyInsert();
            Console.WriteLine(string.Format("使用SqlBulkCopy插入{1}條數(shù)據(jù)所用的時(shí)間是{0}毫秒", sqlBulkCopyInsertRunTime, count));

            long commonInsertRunTime = CommonInsert();
            Console.WriteLine(string.Format("普通方式插入{1}條數(shù)據(jù)所用的時(shí)間是{0}毫秒", commonInsertRunTime, count));

            Console.ReadKey();

        }

        /// <summary>
        /// 使用普通插入數(shù)據(jù)
        /// </summary>
        /// <returns></returns>
        private static long CommonInsert()
        {
            Stopwatch stopwatch = new Stopwatch();
            stopwatch.Start();

            for (int i = 0; i < count; i++)
            {
                SqlHelper.ExecuteNonQuery(SqlHelper.SqlConnection, CommandType.Text, "insert into passport(PassportKey) values('" + Guid.NewGuid() + "')");
            }
            stopwatch.Stop();
            return stopwatch.ElapsedMilliseconds;
        }

        /// <summary>
        /// 使用SqlBulkCopy方式插入數(shù)據(jù)
        /// </summary>
        /// <returns></returns>
        private static long SqlBulkCopyInsert()
        {
            Stopwatch stopwatch = new Stopwatch();
            stopwatch.Start();

            DataTable dataTable = GetTableSchema();
            for (int i = 0; i < count; i++)
            {
                DataRow dataRow = dataTable.NewRow();
                dataRow[2] = Guid.NewGuid();
                dataTable.Rows.Add(dataRow);
            }

            //Console.WriteLine(stopwatch.ElapsedMilliseconds);//初始化數(shù)據(jù)時(shí)間

            SqlBulkCopy sqlBulkCopy = new SqlBulkCopy(SqlHelper.SqlConnection);
            sqlBulkCopy.DestinationTableName = "Passport";

            if (dataTable != null && dataTable.Rows.Count != 0)
            {
                sqlBulkCopy.WriteToServer(dataTable);
            }
            sqlBulkCopy.Close();

            stopwatch.Stop();
            return stopwatch.ElapsedMilliseconds;
        }

        private static DataTable GetTableSchema()
        {
            return SqlHelper.ExecuteDataset(SqlHelper.SqlConnection, CommandType.Text, "select * from Passport where 1=2").Tables[0];
        }

    }
}

原文：http://www.yongfa365.com/Item/SqlBulkCopy.html