Ò׽ؽØÍ¼Èí¼þ¡¢µ¥Îļþ¡¢Ãâ°²×°¡¢´¿ÂÌÉ«¡¢½ö160KB

C#Á¬½ÓMySQLÊý¾Ý¿â·½·¨

C#Á¬½ÓMySQLÊý¾Ý¿â·½·¨
1¡¢ÓÃMySQLDriverCSÁ¬½ÓMySQLÊý¾Ý¿âÏÈÏÂÔØºÍ°²×°MySQLDriverCS£¬µØÖ·£º
http://sourceforge.net/projects/mysqldrivercs
ÔÚ°²×°Îļþ¼ÐÏÂÃæÕÒµ½MySQLDriver.dll£¬È»ºó½«MySQLDriver.dllÌí¼ÓÒýÓõ½ÏîÄ¿ÖÐ
×¢£ºÎÒÏÂÔØµÄÊǰ汾ÊÇ MySQLDriverCS-n-EasyQueryTools-4.0.1-DotNet2.0.exe
using System;
using System.Collections.Generic;
using System.ComponentModel;
using System.Data;
using System.Data.Odbc;
using System.Drawing;
using System.Linq;
using System.Text;
using System.Windows.Forms;
using MySQLDriverCS;
namespace mysql
{
    public partial class Form1 : Form
    {
        public Form1()
        {
            InitializeComponent();
        }
        private void Form1_Load(object sender, EventArgs e)
        {
            MySQLConnection conn = null;
            conn = new MySQLConnection(new MySQLConnectionString("localhost", "inv", "root", "831025").AsString);
            conn.Open();
            MySQLCommand commn = new MySQLCommand("set names gb2312", conn);
            commn.ExecuteNonQuery();
            string sql = "select * from exchange ";
            MySQLDataAdapter mda = new MySQLDataAdapter(sql, conn);
            DataSet ds = new DataSet();
            mda.Fill(ds, "table1");


Ïà¹ØÎĵµ£º

spring+hibernateÔÚMYSQLϵÄһЩÎÊÌâ

½ñÌìÔÚ°ïÅóÓѵ÷ÊÔÒ»¸ö¹ØÓÚ¶àÏ̷߳ÃÎÊͬһÕűíÒýÆðµÄLock wait timeout exceedeµÄÎÊÌ⣬¸Ð¾õÒýÆðµÄÔ­ÒòÓУº
1£¬Ã»ÓнøÐÐÓÅ»¯£¬¾¡Á¿±ÜÃâ¶àÏß³Ì
2£¬¸ù¾ÝËüºóÃæ±¨µÄÒì³££¬ÌáÐÑÎÒ¿ÉÒÔHibernate µÄSessionûÓÐʹÓõõ±£¬(Ò²ÊÇÎÒ½â¾öµÄ·½°¸)
3£¬ÓÃsynchronizedÐÞÊθüбíµÄº¯Êý
¹À¼ÆÊÇÔ­À´³ÌÐòÔÚÐÞ¸ÄÍê¸Ã±íʱÁ¢¿Ì½øÐÐÁ˲åÈë²Ù× ......

ruby gem mysql on cygwin

1£®    °²×°Cygwin
ÔËÐÐCygwinµÄ°²×°³ÌÐò¡£´ÓÎļû°üµÄµÄÁбíÖУ¬ÔÚDEVÀïÃæ£¬È·¶¨ÒªÑ¡Ôñ
• Ruby
• gcc
• subversion
    ÄãÐèҪʹÓÃgccÀ´½¨Á¢Cygwin°æ±¾µÄMySQL.
2. ÔÚwindowsÉÏÃæ°²×°MYSQL£º
    download MySQL 5.0 Windows Installer
3£®  & ......

mysql ÔÚwindowϳöÏÖ1067´íÎóµÄ½â¾ö·½·¨

Æô¶¯mysqlµÄ·þÎñ¾­³£·¢ÏÖ1067Õâ¸ö´íÎ󡣲鿴ʼþÈÕÖ¾ÒÔºó·¢ÏÖÏÂÃæµÄ´íÎóÐÅÏ¢
Unknown/unsupported table type: INNODB
ÈçºÎ½â¾ö£ºÔÚmysqlÊý¾Ý´æ·ÅĿ¼ÏÂÕÒµ½ ibdata ÒÔ¼°ib_logfile0¡¢ib_logfile1ɾµôÔÙÆô¶¯¾ÍºÃÁË ......

ÈçºÎÌá¸ßmysql load data infileµÄËÙ¶È


°æÈ¨ÉùÃ÷
£º×ªÔØÊ±ÇëÒÔ³¬Á´½ÓÐÎʽ±êÃ÷ÎÄÕÂԭʼ³ö´¦ºÍ×÷ÕßÐÅÏ¢¼°±¾ÉùÃ÷
http://bbayou.blogbus.com/logs/37045617.html
²âÊÔÊý¾Ý2.5G£¬¹²ÓÐÊý¾Ý9427567Ìõ¡£ÓõÄmysqlµÄlarge·þÎñÆ÷µÄÅäÖá£
load
Ò»´ÎÐèÒª´ó¸Å10·ÖÖÓ×óÓÒ¡£
½¨µÄ±íÓõÄÊÇMYISAM£¬µ÷ÕûÁ˼¸¸ösessionµÄ²ÎÊýÖµ
SET

SESSION

BULK_INSERT_BUFFER_S ......

mysqlÁ÷³Ìº¯Êý

MySQLÖеÄÁ÷³Ìº¯Êý
º¯Êý
¹¦ÄÜ
IF(value,t ,f)
Èç¹ûvalueÎªÕæ£¬·µ»Øt£¬·ñÔò·µ»Øf
IFNULL(value1,value2)
Èç¹ûvalue1²»Îª¿Õ·µ»Øvalue1,·ñÔò·µ»Øvalue2
CASE WHEN [value1] THEN [result1] … ELSE [default] END
Èç¹ûvalue1ÎªÕæ ·µ»Øresult2 ·ñÔò·µ»Ødefault
CASE [expr] WHEN [value1] THEN [result1] &helli ......
© 2009 ej38.com All Rights Reserved. ¹ØÓÚE½¡ÍøÁªÏµÎÒÃÇ | Õ¾µãµØÍ¼ | ¸ÓICP±¸09004571ºÅ