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 ×îÐÂÎÄÕ : mysql

phpÁ¬½ÓmysqlÏê½â

 Èç¹ûÖ»ÊÇÒ»¸öÊý¾Ý¿âµÄ»°£¬ÎÒÃÇÒ»°ãϰ¹ßÕâÑùд£ºmysql_select_db("guestbook")£»
mysql_query('select * from users');
µ«ÊÇÈç¹ûÊÇÁ¬½Ó¶à¸ömysql£¬ÓпÉÄܳöÏÖͬÃûµÄÊý¾Ý¿â£¬»òÕßÊý¾Ý¿âÖгöÏÖͬÃûµÄ±í£¬ËùÒԾͱØÐëÓÃÍêÕûµÄÐÎʽÁË£¬ÈçÏ´úÂ룺
<?php
$link1 = mysql_connect('localhost1','root','root');
mysql_select_db('test',$link1);
mysql_query('select * from users', $link1);
$link2 = mysql_connect('localhost2','root','root');
mysql_select_db('test',$link2);
mysql_query('select * from users', $link2);
?> ......

phpÁ¬½ÓmysqlÏê½â

 Èç¹ûÖ»ÊÇÒ»¸öÊý¾Ý¿âµÄ»°£¬ÎÒÃÇÒ»°ãϰ¹ßÕâÑùд£ºmysql_select_db("guestbook")£»
mysql_query('select * from users');
µ«ÊÇÈç¹ûÊÇÁ¬½Ó¶à¸ömysql£¬ÓпÉÄܳöÏÖͬÃûµÄÊý¾Ý¿â£¬»òÕßÊý¾Ý¿âÖгöÏÖͬÃûµÄ±í£¬ËùÒԾͱØÐëÓÃÍêÕûµÄÐÎʽÁË£¬ÈçÏ´úÂ룺
<?php
$link1 = mysql_connect('localhost1','root','root');
mysql_select_db('test',$link1);
mysql_query('select * from users', $link1);
$link2 = mysql_connect('localhost2','root','root');
mysql_select_db('test',$link2);
mysql_query('select * from users', $link2);
?> ......

jsp mysql ²åÈë ¶ÁÈ¡ ͼƬ

½¨Á¢Êý¾Ý¿â£º
ÎÒµÄÊý¾Ý¿âimages
create table img (
id  int primary key auto_increment,
name varchar(80),
pic  longblob
)
Òª±£Ö¤ÍøÕ¾¸ùĿ¼ Óиö images Îļþ¼Ð
²åÈëÊý¾Ý¿â ´Ó±¾µØÎļþ¼Ð
<%@ page contentType="text/html; charset=utf-8" language="java"  import="java.sql.*,java.io.*" errorPage="" %>
<!DOCTYPE html PUBLIC "-//W3C//DTD XHTML 1.0 Transitional//EN" "http://www.w3.org/TR/xhtml1/DTD/xhtml1-transitional.dtd">
<html xmlns="http://www.w3.org/1999/xhtml">
<head>
<meta http-equiv="Content-Type" content="text/html; charset=utf-8" />
<title>ÎÞ±êÌâÎĵµ</title>
</head>
<body>
<%
String path=application.getRealPath("/");  //È¡µÃÍøÔú¸ùĿ¼
File fr=new File(path+"images");   //µÃµ½inagesÎļþ¼ÐÏÂÃæµÄËùÓеÄÎļþ
String  []names=fr.list();//µÃµ½ËùÓеÄÎļþÃû³Æ
//ÉèÖÃURLºÍÇý¶¯
String url="jdbc:mysql://localhost:3306/images";
String Drivers="com.mysql.jdbc.Driver";
//Á·¼¶Êý¾Ý¿â ×¼±¸SLQÓï¾ä ......

jsp mysql ²åÈë ¶ÁÈ¡ ͼƬ

½¨Á¢Êý¾Ý¿â£º
ÎÒµÄÊý¾Ý¿âimages
create table img (
id  int primary key auto_increment,
name varchar(80),
pic  longblob
)
Òª±£Ö¤ÍøÕ¾¸ùĿ¼ Óиö images Îļþ¼Ð
²åÈëÊý¾Ý¿â ´Ó±¾µØÎļþ¼Ð
<%@ page contentType="text/html; charset=utf-8" language="java"  import="java.sql.*,java.io.*" errorPage="" %>
<!DOCTYPE html PUBLIC "-//W3C//DTD XHTML 1.0 Transitional//EN" "http://www.w3.org/TR/xhtml1/DTD/xhtml1-transitional.dtd">
<html xmlns="http://www.w3.org/1999/xhtml">
<head>
<meta http-equiv="Content-Type" content="text/html; charset=utf-8" />
<title>ÎÞ±êÌâÎĵµ</title>
</head>
<body>
<%
String path=application.getRealPath("/");  //È¡µÃÍøÔú¸ùĿ¼
File fr=new File(path+"images");   //µÃµ½inagesÎļþ¼ÐÏÂÃæµÄËùÓеÄÎļþ
String  []names=fr.list();//µÃµ½ËùÓеÄÎļþÃû³Æ
//ÉèÖÃURLºÍÇý¶¯
String url="jdbc:mysql://localhost:3306/images";
String Drivers="com.mysql.jdbc.Driver";
//Á·¼¶Êý¾Ý¿â ×¼±¸SLQÓï¾ä ......

Ubuntu JavaÏà¹ØÈí¼þ°²×° mysql jdk tomcat

Mysql
 sudo netstat -tap | grep mysql
    µ±ÄúÔËÐиÃÃüÁîʱ£¬Äú¿ÉÒÔ¿´µ½ÀàËÆÏÂÃæµÄÐУº
    linuxidc@linuxidc-laptop:~$">linuxidc@linuxidc-laptop:~$ sudo netstat -tap | grep mysql
    [sudo] password for linuxidc:
    tcp        0      0 localhost:mysql         *:*                     LISTEN      7283/mysqld
    linuxidc@linuxidc-laptop:~$
    ÒªÔÚUbuntu 8.10ϰ²×° MySQL
    sudo apt-get install mysql-server mysql-client
 
    linuxidc@linuxidc-laptop:~$ sudo apt-get install mysql-server mysql-client
    [sudo] password for linuxidc:
    ÕýÔÚ¶ÁÈ¡Èí¼þ°üÁбí... Íê³É
    ÕýÔÚ·ÖÎöÈí¼ ......

Ubuntu JavaÏà¹ØÈí¼þ°²×° mysql jdk tomcat

Mysql
 sudo netstat -tap | grep mysql
    µ±ÄúÔËÐиÃÃüÁîʱ£¬Äú¿ÉÒÔ¿´µ½ÀàËÆÏÂÃæµÄÐУº
    linuxidc@linuxidc-laptop:~$">linuxidc@linuxidc-laptop:~$ sudo netstat -tap | grep mysql
    [sudo] password for linuxidc:
    tcp        0      0 localhost:mysql         *:*                     LISTEN      7283/mysqld
    linuxidc@linuxidc-laptop:~$
    ÒªÔÚUbuntu 8.10ϰ²×° MySQL
    sudo apt-get install mysql-server mysql-client
 
    linuxidc@linuxidc-laptop:~$ sudo apt-get install mysql-server mysql-client
    [sudo] password for linuxidc:
    ÕýÔÚ¶ÁÈ¡Èí¼þ°üÁбí... Íê³É
    ÕýÔÚ·ÖÎöÈí¼ ......

MySQL²éѯ¼°É¾³ýÖØ¸´¼Ç¼µÄ·½·¨

 ²éѯ¼°É¾³ýÖØ¸´¼Ç¼µÄ·½·¨
(Ò»)
1¡¢²éÕÒ±íÖжàÓàµÄÖØ¸´¼Ç¼£¬Öظ´¼Ç¼ÊǸù¾Ýµ¥¸ö×ֶΣ¨peopleId£©À´ÅжÏ
select * from people
where peopleId in (select  peopleId  from  people  group  by  peopleId  having  count(peopleId) > 1)
2¡¢É¾³ý±íÖжàÓàµÄÖØ¸´¼Ç¼£¬Öظ´¼Ç¼ÊǸù¾Ýµ¥¸ö×ֶΣ¨peopleId£©À´Åжϣ¬Ö»ÁôÓÐrowid×îСµÄ¼Ç¼
delete from people
where peopleId  in (select  peopleId  from people  group  by  peopleId   having  count(peopleId) > 1)
and rowid not in (select min(rowid) from  people  group by peopleId  having count(peopleId )>1)
3¡¢²éÕÒ±íÖжàÓàµÄÖØ¸´¼Ç¼£¨¶à¸ö×ֶΣ©
select * from vitae a
where (a.peopleId,a.seq) in  (select peopleId,seq from vitae group by peopleId,seq  having count(*) > 1)
4¡¢É¾³ý±íÖжàÓàµÄÖØ¸´¼Ç¼£¨¶à¸ö×ֶΣ©£¬Ö»ÁôÓÐrowid×îСµÄ¼Ç¼
delete from vitae a
where (a.peopleId,a.seq) in  (select peopleId,seq from vitae group by peopleI ......

Windowsϰ²×°×îеÄApache+PHP+MySQLÖ¸ÄÏ

 ×¢Ò⣺֮ǰÎÒÔÚÍøÉÏÕÒÁ˺öàµÄ×ÊÁÏ NND¶¼²»ÄÜÕý³£ÅäÖóɹ¦ ¸ãµÃÎÒÊǷdz£µØÓôÃÆ£¡
ÕÒµ½ÕâÆªÎÄÕÂÖ®ºóÎÒÖÕÓÚÅäÖóɹ¦ÁË£¡ÍÛºÃˬѽ£¡Ö»Òª°´ÕÕ ÉÏÃæµÄ²½Öè¾ÍÒ»¶¨Äܹ»³É¹¦µÄ£¡
´ËÎÄյݲװ·½·¨ÊÊÓÃÓÚWindows XPϵÄApache+PHP+MySQL°²×°£¬Í¬Ê±Ò²ÊÊÓÃÓÚWindows 2003ϵͳϵݲװºÍÅäÖá£
1. °²×°»·¾³
²Ù×÷ϵͳÊÇ Windows XP ÖÐÎİæ, Apache, PHP, MySQL µÄ×îа汾ÊǽØÖ¹µ½ 2007.09.07£¬·Ö±ðÔÚÆä¹ÙÍøÏÂÔØµÄ:
* Apache 2.2.6£ºhttp://apache.mirror.phpchina.com/httpd/binaries/win32/
* PHP 5.2.4 (Windows Binaries PHP 5.2.4 zip package£©: http://www.php.net/downloads.php ÎÒ֮ǰÊÇÏÂÔØÁËÒ»¸öexe¸ñʽµÄ¹þ¹þ ÏÖÔÚÏÂÁËÒ»¸özip¸ñʽµÄ
* MySQL 5.0.45 Windonws: http://dev.mysql.com/downloads/
2. °²×°µÄĿ¼½á¹¹¹æ»®
ΪÁË·½±ãά»¤£¬¿ÉÒÔ½«·þÎñÆ÷Èí¼þ°²×°ÔÚϵͳÅÌ£¨CÅÌ£©¶ø°Ñ×Ô¼ºµÄÎļþ¶¨Î»µ½ÆäËûÅÌ£¬ÕâÑù¶ÔÓÚÒÔºóµÄά»¤ºÜÖØÒª¡£
3. ÔÚ Windows XP ϰ²×° Apache 2.2.6
Windows XP ϵݲװ
1. ÔËÐÐ apache 2.2.6 µÄ°²×°³ÌÐò£¬¸ù¾ÝÌáʾһ· Next ¼´¿É¡£ÔÚ Server Information µÄ Network Domain¡¢Server Name ×Ö¶ÎËæ±ãÌîÉÏÒ»¸öÓòÃû¼´¿É£¬Èçphp.com£¬È»ºó¸ù¾Ý ......

Windowsϰ²×°×îеÄApache+PHP+MySQLÖ¸ÄÏ

 ×¢Ò⣺֮ǰÎÒÔÚÍøÉÏÕÒÁ˺öàµÄ×ÊÁÏ NND¶¼²»ÄÜÕý³£ÅäÖóɹ¦ ¸ãµÃÎÒÊǷdz£µØÓôÃÆ£¡
ÕÒµ½ÕâÆªÎÄÕÂÖ®ºóÎÒÖÕÓÚÅäÖóɹ¦ÁË£¡ÍÛºÃˬѽ£¡Ö»Òª°´ÕÕ ÉÏÃæµÄ²½Öè¾ÍÒ»¶¨Äܹ»³É¹¦µÄ£¡
´ËÎÄյݲװ·½·¨ÊÊÓÃÓÚWindows XPϵÄApache+PHP+MySQL°²×°£¬Í¬Ê±Ò²ÊÊÓÃÓÚWindows 2003ϵͳϵݲװºÍÅäÖá£
1. °²×°»·¾³
²Ù×÷ϵͳÊÇ Windows XP ÖÐÎİæ, Apache, PHP, MySQL µÄ×îа汾ÊǽØÖ¹µ½ 2007.09.07£¬·Ö±ðÔÚÆä¹ÙÍøÏÂÔØµÄ:
* Apache 2.2.6£ºhttp://apache.mirror.phpchina.com/httpd/binaries/win32/
* PHP 5.2.4 (Windows Binaries PHP 5.2.4 zip package£©: http://www.php.net/downloads.php ÎÒ֮ǰÊÇÏÂÔØÁËÒ»¸öexe¸ñʽµÄ¹þ¹þ ÏÖÔÚÏÂÁËÒ»¸özip¸ñʽµÄ
* MySQL 5.0.45 Windonws: http://dev.mysql.com/downloads/
2. °²×°µÄĿ¼½á¹¹¹æ»®
ΪÁË·½±ãά»¤£¬¿ÉÒÔ½«·þÎñÆ÷Èí¼þ°²×°ÔÚϵͳÅÌ£¨CÅÌ£©¶ø°Ñ×Ô¼ºµÄÎļþ¶¨Î»µ½ÆäËûÅÌ£¬ÕâÑù¶ÔÓÚÒÔºóµÄά»¤ºÜÖØÒª¡£
3. ÔÚ Windows XP ϰ²×° Apache 2.2.6
Windows XP ϵݲװ
1. ÔËÐÐ apache 2.2.6 µÄ°²×°³ÌÐò£¬¸ù¾ÝÌáʾһ· Next ¼´¿É¡£ÔÚ Server Information µÄ Network Domain¡¢Server Name ×Ö¶ÎËæ±ãÌîÉÏÒ»¸öÓòÃû¼´¿É£¬Èçphp.com£¬È»ºó¸ù¾Ý ......

MySQLÍü¼ÇÃÜÂë´¦Àí·½·¨

 ÔÚwindowsÏ£º
´ò¿ªÃüÁîÐд°¿Ú£¬Í£Ö¹mysql·þÎñ£º        Net stop mysql
Æô¶¯mysql£¬Ò»°ãµ½mysqlµÄ°²×°Â·¾¶£¬ÕÒµ½ mysqld-nt.exe
Ö´ÐУºmysqld-nt --skip-grant-tables µ±Ç°´°¿Ú½«»áÍ£Ö¹¡£
ÁíÍâ´ò¿ªÒ»¸öÃüÁîÐд°¿Ú£¬Ö´ÐÐmysql   Èç¹ûÌáʾûÓÐÕâ¸öÃüÁÏȽøÈëMYSQLµÄ°²×°Î»ÖÃÏÂBINĿ¼ÔÙÔËÐÐmysql>use mysql
>update user set password=password("new_password") where user="root";
>flush privileges;
>exit
ÓÃCtrl+Alt+Del£¬ÕÒµ½mysqld-ntµÄ½ø³ÌɱµôËü£¬ÔÚÖØÐÂÆô¶¯mysql-nt·þÎñ£¬¾Í¿ÉÒÔÓÃÐÂÃÜÂëµÇ¼ÁË
ÔÚlinuxÏ£º
Èç¹û MySQL ÕýÔÚÔËÐУ¬Ê×ÏÈɱ֮£º killall -TERM mysqld¡£
Æô¶¯ MySQL £ºbin/safe_mysqld --skip-grant-tables &
¾Í¿ÉÒÔ²»ÐèÒªÃÜÂë¾Í½øÈë MySQL ÁË¡£
È»ºó¾ÍÊÇ
>use mysql
>update user set password=password("new_pass") where user="root";
>flush privileges;
ÖØÐÂɱ MySQL £¬ÓÃÕý³£·½·¨Æô¶¯ MySQL ¡£
zz http://www.javaeye.com/topic/199647 ......
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