Ò׽ؽØͼÈí¼þ¡¢µ¥Îļþ¡¢Ãâ°²×°¡¢´¿ÂÌÉ«¡¢½ö160KB

Mysql¶à±í²éѯ£¬¶à±í²åÈëºÍ¶à±í¸üÐÂ

/*************************************by
garcon1986*****************************************************/
¶à±í²éѯ£º
CREATE TABLE IF NOT EXISTS contact(
contact_id int(11) NOT NULL AUTO_INCREMENT,
user_name varchar(255),
nom varchar(255),
prenom varchar(255),
mail varchar(64),
passcode char(64),
PRIMARY KEY(contact_id)
);
CREATE TABLE IF NOT EXISTS droit(
droit_id int( 11 ) NOT NULL AUTO_INCREMENT ,
droit varchar(255),
PRIMARY KEY(droit_id)
);
CREATE TABLE IF NOT EXISTS contactdroit(
contactdroit_id int(11) NOT NULL AUTO_INCREMENT,
contact_id int( 11 ),
droit_id int( 11 ),
PRIMARY KEY( contactdroit_id )
);
Insert into contact(contact_id, user_name) values(1,'user1');
Insert into contact(contact_id, user_name) values(2,'user2');
Insert into contact(contact_id, user_name) values(3,'user3');
Insert into droit(droit_id, droit) values(1,'admin');
Insert into droit(droit_id, droit) values(2,'superuser');
Insert into contactdroit(contact_id, droit_id) values(1, 1);
Insert into contactdroit(contact_id, droit_id) values(2, 1);
Insert into contactdroit(contact_id, droit_id) values(3, 2);
SELECT c.contact_id, d.droit_id, d.droit from contact c, contactdroit
cd, droit d
where c.contact_id = cd.contact_id
and cd.droit_id = d.droit_id;
½á¹û£º
contact_id     droit_id     droit
1                      1           admin
2                      1           admin
3                      2          superuser
¶à±íÁª²éÀý×Ó£º
Á½¸ö·½·¨¶¼¿ÉÒÔ£¬inner join on ¸üºÃµã¡£
±í½á¹¹Ã»Ìù³öÀ´£¬µ«±È½ÏºÃ¶®ÁË¡£
¼òµ¥·½·¨£º
select c.nom, e.nom
from consul


Ïà¹ØÎĵµ£º

ÅúÁ¿Ìø¹ýmysql slave´íÎóС½Å±¾

[perl] ÅúÁ¿Ìø¹ýmysql slave´íÎóС½Å±¾
2009Äê02ÔÂ20ÈÕ 16:24
·¢ÏÖmysql slave·þÎñÆ÷¾­³£ÒòΪһЩÌØÊâ×Ö·û»òÕß·ûºÅ²úÉúµÄ¸üÐÂÓï¾ä±¨´í£¬Õû¸öͬ²½Ò²»áÒò´Ë¶ø¿¨ÔÚÄÇ£¬×î³õµÄ°ì·¨Ö»ÊÇÊÖ¶¯È¥³ö´íµÄ»úÆ÷£¬Ö´ÐÐÏÂÃæÈýÌõsqlÓï¾ä£¬Ìø¹ý´íÎó¼´¿É¡£
slave stop;
set GLOBAL SQL_SLAVE_SKIP_COUNTER=1;
slave start;
һ̨slave»ú ......

Íü¼ÇmysqlÃÜÂëºó£¬ÖØа²×°mysqlÈ«¹¥ÂÔ

 
1. ¿ªÊ¼->¿ØÖÆÃæ°å->Ìí¼Ó»òɾ³ý³ÌÐò->жÔØmysql
2. ¼ÙÉè֮ǰmysqlµÄ°²×°Ä¿Â¼ÊÇC:\Program Files\MySQL\MySQL Server 5.1/, ÄÇôÕâ¸öÏÂÃ滹±£ÁôÁËһЩ¶«Î÷£¬´ò¿ªmy.ini
3. ÕÒµ½#Path to the database root£¬ È»ºó°´ÕÕÕâ¸öPathÕÒµ½mysql,ɾµô
4. °ÑC:\Program Files\MySQLҲɾµô
5. ¿ªÊ¼->ÔËÐÐ ÊäÈër ......

mysql µ¼Èë¡¢µ¼³öÊý¾Ý¿â¡¢±í

DOS¡¡´°¿Ú
¿ªÊ¼£­£¾ÔËÐУ­£¾¡¡cmd
µ¼³öΪ£º¡¡mysqldump -u Óû§Ãû -p  --opt  Êý¾Ý¿âÓû§Ãû >
Êý¾Ý¿âÃû.sql
ÊäÈëÄãµÄÊý¾Ý¿âÃÜÂë!phpma.com
µ¼ÈëΪ£ºmysql -u Óû§Ãû -p Êý¾Ý¿âÓû§Ãû < Êý¾Ý¿âÃû.sql
£¨Òª
ÔÚµ±Ç°Ä¿Â¼Ï²Ù×÷£©
ÒªÏ뽫Îı¾Îļþ

pet.txt

×°Ôص½
pet
±íÖУ¬Ê¹Ó ......

MYSQL Ë«»úÈȱ¸ÅäÖÃÊÖ²á()


[Ô­´´] MYSQL Ë«»úÈȱ¸ÅäÖÃÊÖ²á[Ô­´´]
http://www.chinaunix.net ×÷Õß:squall1  ·¢±íÓÚ£º2007-07-23 19:01:43
¡¾·¢±íÆÀÂÛ¡¿¡¾²é¿´Ô­ÎÄ¡¿¡¾´æ´¢±¸·ÝÖ®¼ÒÌÖÂÛÇø¡¿¡¾¹Ø±Õ¡¿
×÷ÕߣºCU-squall   
·¢±íÓÚ£º2005Äê4ÔÂ18ÈÕ 8:21  ¿ÉÒÔ²»¾­×÷ÕßͬÒâ×ÔÓÉ´«²¥£¬Çë×¢Ã÷×÷Õß³ö´¦¡£
ʹ ......

MySqlÖеÄÄ£ºý²éѯ

ÔÚMySqlÖеÄÄ£ºý²éѯºÍÔÚMSSQLÖеIJ¶à£¬±¾¼Ç¼Ö÷ÒªÊÇ˵ÔÚJDBCÖÐʹÓÃPreparedStatementÀ´¹¹ÔìÒ»¸öÄ£ºý²éѯµÄÓï¾ä¡£
Ä£ºý²éѯSQLÓï¾ä£ºSELECT * from tableA WHERE colA LIKE '%ҪƥÅäµÄÄÚÈÝ%'
¹¹ÔìPreparedStatement£º
String sql = "SELECT * from tableA WHERE colA LIKE [-ÕâÀïÌîʲôÄØ£¿-]";
PreparedS ......
© 2009 ej38.com All Rights Reserved. ¹ØÓÚE½¡ÍøÁªÏµÎÒÃÇ | Õ¾µãµØͼ | ¸ÓICP±¸09004571ºÅ