mysql³£ÓÃÃüÁî
1¡¢MySQL³£ÓÃÃüÁî
create database name; ´´½¨Êý¾Ý¿â
use databasename; Ñ¡ÔñÊý¾Ý¿â
drop database name Ö±½Óɾ³ýÊý¾Ý¿â£¬²»ÌáÐÑ
show tables; ÏÔʾ±í
describe tablename; ±íµÄÏêϸÃèÊö
select ÖмÓÉÏdistinctÈ¥³ýÖØ¸´×Ö¶Î
mysqladmin drop databasename ɾ³ýÊý¾Ý¿âǰ£¬ÓÐÌáʾ¡£
ÏÔʾµ±Ç°mysql°æ±¾ºÍµ±Ç°ÈÕÆÚ
select version(),current_date;
2¡¢ÐÞ¸ÄmysqlÖÐrootµÄÃÜÂ룺
shell>mysql -u root -p
mysql> update user set password=password(”xueok654123″) where user=’root’;
mysql> flush privileges //Ë¢ÐÂÊý¾Ý¿â
mysql>use dbname£» ´ò¿ªÊý¾Ý¿â£º
mysql>show databases; ÏÔʾËùÓÐÊý¾Ý¿â
mysql>show tables; ÏÔʾÊý¾Ý¿âmysqlÖÐËùÓÐµÄ±í£ºÏÈuse mysql£»È»ºó
mysql>describe user; ÏÔʾ±ímysqlÊý¾Ý¿âÖÐuser±íµÄÁÐÐÅÏ¢£©£»
3¡¢grant
´´½¨Ò»¸ö¿ÉÒÔ´ÓÈκεط½Á¬½Ó·þÎñÆ÷µÄÒ»¸öÍêÈ«µÄ³¬¼¶Óû§£¬µ«ÊDZØÐëʹÓÃÒ»¸ö¿ÚÁîsomething×öÕâ¸ö
mysql> grant all privileges on *.* to user@localhost identified by ’something’ with
Ôö¼ÓÐÂÓû§
¸ñʽ£ºgrant select on Êý¾Ý¿â.* to Óû§Ãû@µÇ¼Ö÷»ú identified by “ÃÜÂë”
GRANT ALL PRIVILEGES ON *.* TO monty@localhost IDENTIFIED BY ’something’ WITH GRANT OPTION;
GRANT ALL PRIVILEGES ON *.* TO monty@”%” IDENTIFIED BY ’something’ WITH GRANT OPTION;
ɾ³ýÊÚȨ£º
mysql> revoke all privileges on *.* from root@”%”;
mysql> delete from user where user=”root” and host=”%”;
mysql> flush privileges;
´´½¨Ò»¸öÓû§customÔÚÌØ¶¨¿Í»§¶Ëit363.comµÇ¼£¬¿É·ÃÎÊÌØ¶¨Êý¾Ý¿âfangchandb
mysql >grant select, insert, update, delete, create,drop on fangchandb.* to custom@ it363.com identified by ‘ passwd’
ÖØÃüÃû±í:
mysql > alter table t1 rename t2;
4¡¢mysqldump
±¸·ÝÊý¾Ý¿â
shell> mysqldump -h host -u root -p dbname >dbname_backup.sql
»Ö¸´Êý¾Ý¿â
shell> mysqladmin -h myhost -u root -p create dbname
shell> mysqldump -h host -u root -p dbname < dbname_backup.sql
Èç¹ûÖ»Ïëж³ö½¨±íÖ¸ÁÔòÃüÁîÈç
Ïà¹ØÎĵµ£º
Mysql Explain Ïê½â
ת×ÔITPUBhttp://www.itpub.net/viewthread.php?tid=1034410&extra=page%3D1%26amp%3Bfilter%3Ddigest&page=1
Ò».Óï·¨
explain < table_name >
ÀýÈç: explain select * from t3 where id=3952602;
¶þ.explainÊä³ö½âÊÍ
+----+-------------+-------+-------+-------------------+--- ......
mysqlË÷ÒýÏê½â,Õª×Ô¡¶MySQL 5ȨÍþÖ¸ÄÏ¡·
±¾ÎĽéÉÜÁËÊý¾Ý¿âË÷Òý£¬¼°ÆäÓÅ¡¢È±µã¡£Õë¶ÔMySQLË÷ÒýµÄÌØµã¡¢Ó¦ÓýøÐÐÁËÏêϸµÄÃèÊö¡£·ÖÎöÁËÈçºÎ±ÜÃâMySQLÎÞ·¨Ê¹Óã¬ÈçºÎʹÓÃEXPLAIN·ÖÎö²éѯÓï¾ä£¬ÈçºÎÓÅ»¯MySQLË÷ÒýµÄÓ¦Óᣱ¾ÎÄÕª×Ô¡¶MySQL 5ȨÍþÖ¸ÄÏ¡·(3rd)µÄ8.9½Ú¡£(2007.07.0 ......
1. ¸½¼ÓÏîÒ»¶¨ ¼ÓÉÏlibmysql.lib¡£
2. include Ò»¶¨¼ÓÉÏ mysqlµÄinclude£¨ÒòΪҪÅÜÕâ¹Ø¼üÒ»¾ä
#include <mysql.h>£©
3 lib Ò»¶¨¼ÓÉÏ mysqlµÄlib
ºÃÁËÏÂÃæÊÇʵÀýºÍphpº¯Êý»ù±¾Ò»ÑùµÄ¡£±¾È˲»¿ÉÄܸøÄã·ÒëÎĵµ£¬º¯Êý²»¶®×Ô¼º¿´¡£
#include
<windows.h>//ÓÃÕâ¸ö·½±ã£¬°üº¬winsock.hËùÒ ......
ÔÚXAMPPÀïMYSQLÒÔ·þÎñ·½Ê½Æô¶¯Ê§°Ü£¬Ìáʾ´íÎóÊÇ 1067 ½ø³ÌÒâÍâÖÕÖ¹
½â¾ö·½·¨£º
1¡¢ ½øÈë xampp°²×°Ä¿Â¼
2¡¢½øÈëmysql\bin\Ŀ¼£¬ ´ò¿ªmy.ini £¬ ÐÞ¸Ä
[mysqld]
port= 3306
socket= "/xampp/mysql/mysql.sock"
basedir="/xampp/mysql"
tmpdir="/xampp/tmp"
datadir="/xampp/mysql/data"
°Ñ·¾¶²¹È«£¬±ÈÈçx ......