ÐÞ¸ÄMySQLĬÈÏÃÜÂëµÄ¾ßÌå²½Ö裨ת£©
access denied for user 'root'@'localhost' (using password: YES);
½ñÌìÓÃmysqlµÄʱºò£¬µÇ¼µÄʱºò³öÏÖÁËÕâ¾ä£¬²»ÖªµÀÊÇʲôÒâ˼£¬ÒòΪÎÒµÄmysqlÊÇ×°centosµÄʱºòÒ»Æð×°µÄ£¬ÃÜÂëÎÒ¾ÍÊäÈëÎÒµÄÕÊ»§ÃÜÂ룬½á¹û³öÏÖÁËÉÏÃæÄǾ䣻°Ù¶ÈÁËһϣ¬»¹Õæ²»ÉÙÈ˳öÏÖÁËÕâ¸öÎÊÌâ¡£¡£×îºóÎÒÕÒµ½ÁË·½·¨£»
[root@localhost home]# mysql -u root
mysql>set password for 'root'@'localhost'=password('newpasswd');
mysql>set password for 'root'@'%'=password('newpasswd'); //±¾Ìõ¿Éѡͨ¹ýÒÔÉÏÉèÖÃ,rootµÄÃÜÂ뽫±äΪnewpasswdÕâÑù¾ÍÍê³ÉÁ˸ùÓû§rootÃÜÂëµÄÉèÖù¤×÷
¾ÍÊǰ´ÕÕÕâ¸ö·½·¨ ÎÒ½øÈ¥ÁË¡£¡£
Ïà¹ØÎĵµ£º
¹Ø¼ü×Ö: mysql
MySQL ÂÒÂëµÄ¸ùÔ´ÊÇµÄ MySQL ×Ö·û¼¯ÉèÖò»µ±µÄÎÊÌ⣬±¾ÎÄ»ã×ÜÁËÓйز鿴 MySQL ×Ö·û¼¯µÄÃüÁî¡£°üÀ¨²é¿´ MySQL Êý¾Ý¿â·þÎñÆ÷×Ö·û¼¯¡¢²é¿´ MySQL Êý¾Ý¿â×Ö·û¼¯£¬ÒÔ¼°Êý¾Ý±íºÍ×ֶεÄ×Ö·û¼¯¡¢µ±Ç°°²×°µÄ MySQL ËùÖ§³ÖµÄ×Ö·û¼¯µÈ¡£
Ò»¡¢²é¿´ MySQL Êý¾Ý¿â·þÎñÆ÷ºÍÊý¾Ý¿â×Ö·û¼¯¡£
mysql> show variab ......
1. ÔÚ/etc/my.cnfÖмÓÈëÒ»ÏÂÄÚÈÝ
[mysqld_dev]
socket=/tmp/mysql.sock
port=3307
pid-file=/var/run/mysqld/mysqld_dev.pid
datadir=/var/lib/mysql_dev
log=/var/log/mysqld_dev.log
log-error=/var/log/mysqld_dev.err.log
user=mysql
2. ¸ù¾ÝÒÔÉÏÄÚÈÝ´´½¨Ä¿Â¼ºÍÎļþ
mkdir /var/lib/mysqld_dev
chown mys ......
Ô×÷£ºÑîÌÎ(ÉϵÛËû°Ö)
Ò»Ö±ÏëµÈµ½BETA°æ³öÀ´ÔÙÊÔÑéµÄ£¬¿É»¹ÊǾ²»×¡ÓÕ»ó°¢,ÏÂÎçÖÕÓÚÓÐʱ¼ä²âÊÔÒ»ÏÂÁË¡£
£¨±¾ÎIJο¼µØÖ·£ºhttp://blog.chinaunix.net/u/8111/showart.php?id=451420£©
Ò»¡¢±Ø±¸Èí¼þ£º
1¡¢LUA
¿ÉÒÔÈ¥LUAµÄ¹Ù·½ÏÂÔØ£ºwww.lua.org
2¡¢MySQL Proxy
ÕâÀïÓкöà¶þ½øÖư汾¡£
& ......
Èç¹ûÄãÊǸöÈü³µÊÖ²¢ÇÒ°´Ò»Ï°´Å¥¾ÍÄܹ»Á¢¼´¸ü»»ÒýÇæ¶ø²»ÐèÒª°Ñ³µ¿ªµ½³µ¿âÀïÈ¥»»£¬ÄÇ»áÊÇÔõô¸Ð¾õÄØ£¿MySQLÊý¾Ý¿âΪ¿ª·¢ÈËÔ±Ëù×öµÄ¾ÍºÃÏñÊǰ´°´Å¥»»ÒýÇæ£»ËüÈÃÄãÑ¡ÔñÊý¾Ý¿âÒýÇæ£¬²¢¸øÄãÒ»Ìõ¼òµ¥µÄ;¾¶À´Çл»Ëü¡£
MySQL µÄ×Ô´øÒýÇæ¿Ï¶¨Êǹ»ÓÃÁË£¬µ«ÊÇÔÚÓÐЩÇé¿öÏ£¬ÆäËûµÄÒýÇæ¿ÉÄÜÒª±ÈÊÖÍ·ËùÓøüÊʺÏÍê³ÉÈÎÎñ¡£Èç¹ûÔ¸Ò ......
»ù±¾µÄMySQLÓï¾äºÜ¼òµ¥£¬ÕâÀïÖ÷Ҫ̸̸һЩÈÝÒ×ÒÅÍüµÄ¡£
1.ÈçºÎÉèÖÃ×ֶεÝÔö
create table tb_User(Id int auto_increment
not null primary key,UserName varchar(50),Password varchar(20));
2.²é¿´±í½á¹¹
desc tb_User;
3.ÈçºÎÐ޸ıí½á
ÖØÃüÃû±í£ºalter table tb_User rename
tb_UserInfo;
Ìí¼ÓÒ»ÁУºalter ta ......