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

MySQLС¼¼ÇÉ 1

1,Íü¼ÇrootÃÜÂë,Èç¹ûÄÜ»¹ÄܽøÈëmysqlÇÒ»¹ÓÐmysql¿âµÄȨÏÞ,ÄÇô¾ÍÖ±½ÓÖ´ÐÐ update user set password=password(¡®XXX¡¯) where user=¡¯root¡¯ and host=¡¯XX¡¯; flush privileges; ¼´¿É.Èç¹û²»ÄܽøÈëmysql,ÐèÒªÓÐmysqlÆô¶¯µÄȨÏÞ,ÔÚÆô¶¯mysqlµÄʱºò¼ÓÉÏ--skip-grant-tablesÑ¡Ïî,´Ëʱ½øÈëmysqlÎÞÐèÃÜÂë,ÔÙÖØ¸´ÉÏÊö²Ù ......

MySqlÊý¾Ý¿â³¹µ×ɾ³ý

Ð¶ÔØMySQLÊý¾Ý¿â£º
ÏÈÍ£µôWINDOWSÀïµÄMySQL·þÎñ£»
ÓÃ360°²È«ÎÀʿǿÐÐɾ³ýMySQLÊý¾Ý¿â
½Ó×ÅÔÚ×¢²á±íÀïÇå³ýMySQL·þÎñ£º
1¡¢HKEY_LOCAL_MACHINE\SYSTEM\ControlSet001\Services\Eventlog\Application\MySQL Ŀ¼ɾ³ý
2¡¢HKEY_LOCAL_MACHINE\SYSTEM\ControlSet002\Services\Eventlog\Application\MySQL Ŀ¼ɾ³ý
3¡¢HKEY_ ......

SQL SERVERÊý¾ÝÀàÐÍÓëC#Êý¾ÝÀàÐͶÔÕÕ±í

bigint ´Ó -2^63 (-9223372036854775808) µ½ 2^63-1 (9223372036854775807) µÄÕûÐÍÊý¾Ý£¨ËùÓÐÊý×Ö£©¡£´æ´¢´óСΪ 8 ¸ö×Ö½Ú¡£ Int64
int ´Ó -2^31 (-2,147,483,648) µ½ 2^31 - 1 (2,147,483,647) µÄÕûÐÍÊý¾Ý£¨ËùÓÐÊý×Ö£©¡£´æ´¢´óСΪ 4 ¸ö×Ö½Ú¡£int µÄ SQL-92 ͬÒå×ÖΪ integer¡£ Int32
smallint ´Ó -2^15 (-32,768) µ½ ......

MySQL²»Ö§³ÖINTERSECTºÍMINUS£¬¼°ÆäÌæ´ú·½·¨

Doing INTERSECT and MINUS in MySQL
By Carsten | October 3, 2005
Doing an INTERSECT
An INTERSECT is simply an inner join where we compare the tuples of one table with those of the other, and select those that appear in both while weeding out duplicates. So
SELECT member_id, name from a
INTERSECT ......

ÕûºÏfreeBSDÏÂnginx+php+mysql°²×°·½°¸£¨ports°²×°£©

  ×î½üÒ»Ö±ÔÚÑо¿freeBSDÏÂnginx+php+mysqlµÄ°²×°£¬¿´Á˺ܶàÍøÉϵÄ×ÊÁÏÊÕ»ñ²»Ð¡£¬²»¹ý´ó²¿·Ö¶¼ÊDZàÒë°²×°£¬Ïà¶Ô³õѧÕßÀ´Ëµ±È½Ï¸´ÔÓ£¬²»ÈÝÒ×Àí½â£¬ËùÒÔÎÒÕûºÏÁËһЩports°²×°µÄ×ÊÁÏ£¬¶¼ÊǾ­¹ý×Ô¼ºÑéÖ¤ºóµÄ£¬°²×°³É¹¦Ò²±È½ÏÈÝÒ×Àí½â£¬ÏÂÃæÊÇÁ½Öֳɹ¦µÄ°¸Àý£¬ÆäÖÐÓÐÒ»¸öÊÇApache´úÌænginxµÄ°²×°£¬Ï£Íû¶Ô´ó¼ÒÓÐËù°ïÖú¡£
° ......
© 2009 ej38.com All Rights Reserved. ¹ØÓÚE½¡ÍøÁªÏµÎÒÃÇ | Õ¾µãµØÍ¼ | ¸ÓICP±¸09004571ºÅ