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 ×îÐÂÎÄÕ : mysql

MYSQL ÄÚ´æ»úÖÆ


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ÔÚ MySQL ÖУ¬Ï̶߳ÀÏíÄÚ´æÖ÷ÒªÓÃÓÚ¸÷¿Í»§¶ËÁ¬½ÓÏ̴߳洢¸÷ÖÖ²Ù×÷µÄ¶ÀÏíÊý¾Ý£¬ÈçÏß³ÌÕ»ÐÅÏ¢£¬·Ö×éÅÅÐò²Ù×÷£¬Êý¾Ý¶Áд»º³å£¬½á¹û¼¯ÔÝ´æµÈµÈ£¬¶øÇÒ´ó¶àÊý¿ÉÒÔͨ¹ýÏà¹Ø²ÎÊýÀ´¿ØÖÆÄÚ´æµÄʹÓÃÁ¿¡£   
  
Ïß³ÌÕ»ÐÅϢʹÓÃÄÚ´æ(thread_stack)£ºÖ÷ÒªÓÃÀ´´æ·Åÿһ¸öÏß³Ì×ÔÉíµÄ±êʶÐÅÏ¢£¬ÈçÏß³Ìid£¬Ïß³ÌÔËÐÐʱ»ù±¾ÐÅÏ¢µÈµÈ£¬ÎÒÃÇ¿ÉÒÔͨ¹ý thread_stack ²ÎÊýÀ´ÉèÖÃΪÿһ¸öÏß³ÌÕ»·ÖÅä¶à´óµÄÄÚ´æ¡£   
  
ÅÅÐòʹÓÃÄÚ´æ(sort_buffer_size)£ºMySQLÓôËÄÚ´æÇøÓò½øÐÐÅÅÐò²Ù×÷£¨filesort£©£¬Íê³É¿Í»§¶ËµÄÅÅÐòÇëÇó¡£µ±ÎÒÃÇÉèÖõÄÅÅÐòÇø»º´æ´óСÎÞ·¨Âú×ãÅÅÐòʵ¼ÊËùÐèÄÚ´æµÄʱºò£¬MySQL»á½«Êý¾ÝдÈë´ ......

¿ªÆôMYSQLÈÕÖ¾ÅäÖÃ

ÔÚ[mysqld] ÏÂÌí¼Ó²ÎÊýÈçÏÂ
 #´íÎóÈÕÖ¾Êä³ö·¾¶(ʹÓÃ/×÷Ϊ·Ö¸î¶ø²»ÊÇ\)
log-error="your error-log path"
log="Your mysql log path"
log-show-queries="Your slowquery path"
#É趨³¬Ê±Ê±¼ä ´Ë´¦ÉèÖÃΪÁ½Ãë
long_query_time=2
Ok save my.ini
next
#Í£Ö¹mysql ·þÎñ
net stop mysql 
#ÖØÐ¿ªÊ¼·þÎñ
net start mysql ......

Á¬½ÓMysqlÊý¾Ý¿âС³£Ê¶

1.¼ÓÔØmysqlÇý¶¯°üProperties->java Build Path->Libraries->Add External JARs...
2.Class.forName("com.mysql.jdbc.Driver");
conn = DriverManager.getConnection("jdbc:mysql://localhost:3306/Êý¾Ý¿âÃû?user=root&password=ÃÜÂë"); ......

һЩ¼òµ¥µÄmysql SQLÓï¾ä±¸Íü

·ÅÔÚÕâÀﱸÍü,ÀÏÊÇÍü¼ÇÔõôд¡£
mysql> create database book;
mysql> use book;
Database changed
mysql> create table email_message(key_mail_messages INTEGER,
-> date_created VARCHAR(19),
-> date_updated varchar(19),
-> date_email varchar(19),
-> addr_from varchar(100),
-> addr_reply_to varchar(100),
-> subject varchar(100),
-> message mediumtext);
mysql> describe email_message;
+-------------------+--------------+------+-----+---------+-------+
| Field | Type | Null | Key | Default | Extra |
+-------------------+--------------+------+-----+---------+-------+
| key_mail_messages | int(11) | YES | | NULL | |
| date_created | varchar(19) | YES | | NULL | |
| date_updated | varchar(19) | YES | | NULL | |
| date_email | varchar(19) | YES | | NULL | |
| addr_from | varchar(100) | YES | | NULL ......

һЩ¼òµ¥µÄmysql SQLÓï¾ä±¸Íü

·ÅÔÚÕâÀﱸÍü,ÀÏÊÇÍü¼ÇÔõôд¡£
mysql> create database book;
mysql> use book;
Database changed
mysql> create table email_message(key_mail_messages INTEGER,
-> date_created VARCHAR(19),
-> date_updated varchar(19),
-> date_email varchar(19),
-> addr_from varchar(100),
-> addr_reply_to varchar(100),
-> subject varchar(100),
-> message mediumtext);
mysql> describe email_message;
+-------------------+--------------+------+-----+---------+-------+
| Field | Type | Null | Key | Default | Extra |
+-------------------+--------------+------+-----+---------+-------+
| key_mail_messages | int(11) | YES | | NULL | |
| date_created | varchar(19) | YES | | NULL | |
| date_updated | varchar(19) | YES | | NULL | |
| date_email | varchar(19) | YES | | NULL | |
| addr_from | varchar(100) | YES | | NULL ......

FreeBSDÀûÓÃports°²×°MySQL+Apache+PHP

ʹÓÃPorts·½Ê½ÔÚFreeBSDÏÂÅäÖÃMySQL,Apache,PHP
ÓôÃÆÁ˺ü¸Ìì,ÖÕÓÚÔÚFreeBSDϽ«MySQL,Apache,PHPµÄ»·¾³ÅàÖ²ºÃÁË.ϱ߰ÑÅäÖò½ÖèºÍ×¢ÒâµãÂÞÁÐÔÚϱß,ºÍ´ó¼Ò·ÖÏí.
 
 FreeBSD°æ±¾ÊÇ7.3,MySQL°æ±¾ÊÇ5.0.90,Apache°æ±¾ÊÇ2.2.14£¨1.3.42£©,PHP°æ±¾ÊÇ5.2.12.Îҵݲװ˳ÐòÊÇÏÈMySQL,È»ºó°²×°ApacheºÍPHP,Ò»°ãÊǰ²×°Íê³ÉÒ»¸ö²¢²âÊÔͨ¹ýºó°²×°ÏÂÒ»¸ö,ÕâÑùÈÝÒ×·¢ÏÖÎÊÌâËùÔÚ.
 
Ò».°²×°MySQL
 
cd /usr/ports/databases/mysql50-server/
make WITH_XCHARSET=all   //ĬÈÏÖ§³ÖËùÓÐ×Ö·û¼¯
make install
 
#¾­ÀúÒ»¸ö±È½Ï³¤µÄÏÂÔØºÍ±àÒë¹ý³Ìºó,mysql»ù±¾°²×°Íê³É.
 
rehash
 
#¿½±´MySQLµÄÅäÖÃÎļþ,ϵͳĬÈÏÌṩÁËËĸö,ÐèÒª¸ù¾Ý·þÎñÆ÷µÄÅäÖÃÀ´Ñ¡ÔñÊʺϵÄÅäÖÃÎļþ,MySQLµÄ´ó²¿·ÖÅäÖà #¶¼¿ÉÒÔͨ¹ý´ËÅäÖÃÎļþÀ´Íê³É,Ò²¿ÉÒÔÔÚ´ËÅäÖÃÎļþÖв鿴Êý¾Ý¿âµÄ¸÷ÖÖÅäÖÃÐÅÏ¢.
 
 
cp /usr/local/share/mysql/my-large.cnf  /etc/my.cnf
 
#±à¼­rc.confÎļþ,ÔÚÆäÖÐÌí¼Ómysql_enable="YES"
 
 vi /etc/rc.conf
 
#Æô¶¯MySQL
 
cd /usr/local/etc/rc.d/
 
./mysql-server.sh start ......

Windows Ï Apache Mysql PHP °²×°ºóµÄÅäÖÃ

1 Apache
Ð޸Ġ  documentroot   ¸ùĿ¼
         directory           ·ÃÎʸùĿ¼ȨÏÞ
         directoryindex   Ä¬ÈÏÊ×Ò³
         <´ò¿ªwrite_modȨÏÞ> 
¼ÓÔØÄ£¿é
        Loadmodule php5_module
        AddType Application/x-httpd-php .php
        PHPIniDir
        LoadFile libmcrypt.dll
        LoadFile libmysql.dll
2 PHP
       Session.save_path
        extension.dir= \
       ¼ÓÔØ³£ÓõÄÄ£¿é 
       gd2 mbstring mcrypt mysql my ......

Windows Ï Apache Mysql PHP °²×°ºóµÄÅäÖÃ

1 Apache
Ð޸Ġ  documentroot   ¸ùĿ¼
         directory           ·ÃÎʸùĿ¼ȨÏÞ
         directoryindex   Ä¬ÈÏÊ×Ò³
         <´ò¿ªwrite_modȨÏÞ> 
¼ÓÔØÄ£¿é
        Loadmodule php5_module
        AddType Application/x-httpd-php .php
        PHPIniDir
        LoadFile libmcrypt.dll
        LoadFile libmysql.dll
2 PHP
       Session.save_path
        extension.dir= \
       ¼ÓÔØ³£ÓõÄÄ£¿é 
       gd2 mbstring mcrypt mysql my ......
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