MySql²Ù×÷Àà
×î½üдÁËÒ»¸ö¼òµ¥µÄMysql²Ù×÷À࣬ÄóöÀ´ºÍ´ó¼Ò·ÖÏíһϣ¬»¹Çë¸÷λ¸ßÊÖÖ¸ÕýÒ»ÏÂÎö¹¹º¯ÊýµÄÓ÷¨£º
<?php
/*
* Created on 2010-5-25
*
* To change the template for this generated file go to
* Window - Preferences - PHPeclipse - PHP - Code Templates
*
* class mysql
* made by S71ENCE
*/
class mysql
{
private $host;//Ö÷»úÃû
private $name;//Óû§Ãû
private $pwd;//ÃÜÂë
private $dataBase;//Êý¾Ý¿âÃû
private $coding;//±àÂë
//³õʼ»¯
function __construct($host,$name,$pwd,$dataBase,$coding)
{
$this->host=$host;
$this->name=$name;
$this->pwd=$pwd;
$this->dataBase=$dataBase;
$this->coding=$coding;
$this->connect();//³õʼ»¯Á¬½Ó
}
/*********************************************************************************************
* Êý¾Ý¿â
* »ù±¾·½·¨
********************************************************************************************/
//Êý¾Ý¿âÁ¬½Ó
function connect()
{
$link=mysql_connect($this->host,$this->name,$this->pwd) or die($this-error());
mysql_select_db($this->dataBase,$link) or die("ÎÞ·¨Á¬½ÓÊý¾Ý¿â".$this->dataBase);
mysql_query("set names '$this->coding'");
}
//´íÎóÐÅÏ¢
function error()
{
return mysql_error
Ïà¹ØÎĵµ£º
¹Ø¼ü´Ê£ºMySQL ±¸·Ý »Ö¸´
¡¡¡¡±¸·ÝÊÇ×î¼òµ¥µÄ±£»¤Êý¾ÝµÄ·½·¨£¬±¾½Ú½«½éÉܶàÖÖ±¸·Ý·½·¨¡£ÎªÁ˵õ½Ò»¸öÒ»Öµı¸·Ý£¬ÔÚÏà¹ØµÄ±íÉÏ×öÒ»¸öLOCK TABLES£¬ÄãÖ»ÐèÒ»¸ö¶ÁËø¶¨£¬µ±ÄãÔÚÊý¾Ý¿âĿ¼ÖÐ×öÎļþµÄÒ»¸ö¿½±´Ê±£¬ÕâÔÊÐíÆäËûÏ̼߳ÌÐø²éѯ¸Ã±í;µ±Äã»Ö¸´Êý¾Ýʱ£¬ÐèÒªÒ»¸öÐ´Ëø¶¨£¬ÒÔ±ÜÃâ³åÍ»¡£
¡¡¡¡Ê¹ÓÃSQL ......
¼¸¸ö³£ÓÃÓÃÀý£º
1.µ¼³öÕû¸öÊý¾Ý¿â mysqldump -u Óû§Ãû -p Êý¾Ý¿âÃû > µ¼³öµÄÎļþÃû mysqldump -u wcnc -p smgp_apps_wcnc > wcnc.sql2.µ¼³öÒ»¸ö±í mysqldump -u Óû§Ãû -p Êý¾Ý¿âÃû ±íÃû> µ¼³öµÄÎļþÃû mysqldump -u wcnc -p smgp_apps_wcnc users> wcnc_users.sql3.µ¼³öÒ»¸öÊý¾Ý¿â½ ......
1.¶Ô²éѯ½øÐÐÓÅ»¯£¬Ó¦¾¡Á¿±ÜÃâÈ«±íɨÃ裬Ê×ÏÈÓ¦¿¼ÂÇÔÚ where ¼° order by Éæ¼°µÄÁÐÉϽ¨Á¢Ë÷Òý¡£
2.Ó¦¾¡Á¿±ÜÃâÔÚ where ×Ó¾äÖжÔ×ֶνøÐÐ null ÖµÅжϣ¬·ñÔò½«µ¼ÖÂÒýÇæ
·ÅÆúʹÓÃË÷Òý¶ø½øÐÐÈ«±íɨÃ裬È磺
select id from t where num is null
¿ÉÒÔÔÚnumÉÏÉèÖÃ
ĬÈÏÖµ0£¬È·±£±íÖÐnumÁÐûÓÐnullÖµ£¬È»ºóÕâ
Ñù²éѯ£º
sel ......
MySQLÃÜÂëÐ޸ķ½·¨
Ê×ÏÈÒªÉùÃ÷Ò»µã£¬´ó²¿·ÖÇé¿öÏ£¬ÐÞ¸ÄMySQLÊÇÐèÒªÓÐmysqlÀïµÄrootȨÏ޵ģ¬ËùÒÔÒ»°ãÓû§ÎÞ·¨¸ü¸ÄÃÜÂ룬³ý·ÇÇëÇó¹ÜÀíÔ±¡£
·½·¨Ò»
¡¡¡¡Ê¹ÓÃphpmyadmin£¬ÕâÊÇ×î¼òµ¥µÄÁË£¬ÐÞ¸Ämysql¿âµÄuser±í£¬
¡¡¡¡²»¹ý±ðÍüÁËʹÓÃPASSWORDº¯Êý¡£
¡¡¡¡·½·¨¶þ
¡¡ ......