.net使用SqlBulkCopy极速插入数据到SQL Server

2010-08-28 10:56:04来源:西部e网作者:

刚进公司时,领导说物流水系统有一个问题:发送水票速度很慢,每发送一次就得等10多分钟,问我有没有解决方法,时间原因一直没去研究。

今天早上reader 上收到cnblogs的订阅里看到一个关于SQL语句快速插入的文章,提到SqlBulkCopy,感觉不错,按他的测试SqlBulkCopy要比普通插入快近30倍,

按这个来算,我们那个发水票的时间就会由 10分钟-->20秒,这可太神奇了。

于是乎,下demo,测试,改成自己一般使用的方法测试,NND,还真可以说是极速。

 在此贴上我的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;           //插入的条数
        static void Main(string[] args)
        {

            long sqlBulkCopyInsertRunTime = SqlBulkCopyInsert();
            Console.WriteLine(string.Format("使用SqlBulkCopy插入{1}条数据所用的时间是{0}毫秒", sqlBulkCopyInsertRunTime, count));

            long commonInsertRunTime = CommonInsert();
            Console.WriteLine(string.Format("普通方式插入{1}条数据所用的时间是{0}毫秒", commonInsertRunTime, count));

            Console.ReadKey();

        }

        /// <summary>
        /// 使用普通插入数据
        /// </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方式插入数据
        /// </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);//初始化数据时间

            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

 

关键词:vs.netSQLServer

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