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¸ñʽ£ºgrant ȨÏÞ on Êý¾Ý¿â.* to Óû§Ãû@µÇ¼Ö÷»ú identified by "ÃÜÂë"
È磬Ôö¼ÓÒ»¸öÓû§user1ÃÜÂëΪpassword1£¬ÈÃÆä¿ÉÒÔÔÚ±¾»úÉϵǼ£¬ ²¢¶ÔËùÓÐÊý¾Ý¿âÓвéѯ¡¢²åÈë¡¢Ð޸ġ¢É¾³ýµÄȨÏÞ¡£Ê×ÏÈÓÃÒÔrootÓû§Á¬Èëmysql£¬È»ºó¼üÈëÒÔÏÂÃüÁ
grant select,insert,update,delete on *.* to user1@localhost Identified by "password1";
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grant select,insert,update,delete on mydb.* to user1@localhost identified by "";
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1¡¢ ÏÔʾÊý¾Ý¿âÁÐ±í¡£
show databases;
ȱʡÓÐÁ½¸öÊý¾Ý¿â£ºmysqlºÍtest¡£ mysql¿â´æ·Å×ÅmysqlµÄϵͳºÍÓû§È¨ÏÞÐÅÏ¢£¬ÎÒÃǸÄÃÜÂëºÍÐÂÔöÓû§£¬Êµ¼ÊÉϾÍÊǶÔÕâ¸ö¿â½øÐвÙ×÷¡£
2¡¢ ÏÔʾ¿âÖеÄÊý¾Ý±í£º
use mysql;
show tables;
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describe ±íÃû;
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create database ¿âÃû;
drop database ¿âÃû;
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use ¿âÃû;
create table ±íÃû(×Ö¶ÎÁбí);
drop table ±íÃû;
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delete from ±íÃû;
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select * from ±íÃû;
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1. µ¼³öÊý¾Ý£º
mysqldump --opt test > mysql.test
¼´½«Êý¾Ý¿âtestÊý¾Ý¿âµ¼³öµ½mysql.testÎļþ£¬ºóÕßÊÇÒ»¸öÎı¾Îļþ
È磺mysqldump -u root -p123456 --databases dbname > mysql.dbname
¾ÍÊÇ°ÑÊý¾Ý¿âdbnameµ¼³öµ½Îļþmysql.dbnameÖС£
2. µ¼ÈëÊý¾Ý:
mysqlimport -u root -p123456 < mysql.dbname¡£
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3. ½«Îı¾Êý¾Ýµ¼ÈëÊý¾Ý¿â:
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use test;
load data local infile "ÎļþÃû" into table ±íÃû;
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mysql> SHOW DATABASES;
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mysql> CREATE DATABASE MYSQLDATA;
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    To_date('2001-08-01','YYYY-MM-DD'); Äê-ÔÂ-ÈÕ
    24Сʱ£º·ÖÖÓ£ºÃëµÄ¸ñʽ  'YYYY-MM-DD HH24:MI:SS'  ......

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mysql 5.0 to mysql 5.1µÄBTREEË÷ÒýÎÊÌâ


ÎÒ±¾»ú²âÊÔÊÇ°²×°µÄ mysql 5.1 , µ« centos ·þÎñÆ÷ÉÏÈ·ÊÇʹÓÃµÄ mysql 5.0 , ƽʱû·¢ÏÖ²î±ð, µ«×î½üsql Îļþµ¼Èëµ¼³öʱ·¢ÏÖÁË, Ò»µãСС²î±ð.
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KEY `index_2` (`datatype`,`stime`,`line`,`mcode`) USING BTREE
Èç¹ûÏëµ¼Èëµ½ mysql 5 ......

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groupadd mysql (/usr/sbin/groupadd)
useradd -g mysql mysql
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tar zxfv mysql-*.tar.gz(mysql-5.0.51a)
./configure --prefix=/usr/local/mysql
make
make install
cp support-files/my-medium.cnf /etc/my.cnf
cd /usr/local/mysql
bin/mysql_install_db --user ......

MYSQL µÄ MyISAM ºÍ InnoDB µÄÀ§»ó

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ºóÀ´·¢ÏÖÊÇMySQLµÄ storage engine µÄÎÊÌâ¡£
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Ð޸ķ½·¨£¬ÕÒµ½ my.ini
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default-storage-engine = InnoDB
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MyISAMºÍ ......
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