Ò׽ؽØÍ¼Èí¼þ¡¢µ¥Îļþ¡¢Ãâ°²×°¡¢´¿ÂÌÉ«¡¢½ö160KB

mysqlÊý¾Ý¿âÖ÷Íâ¼ü¹ØÏµ - PHP / »ù´¡±à³Ì

ÇëÎÊ£¬ÈçºÎÔÚ¿ÉÊÓ»¯×´Ì¬ÏÂÉèÖÃmysqlÊý¾Ý¿âµÄÖ÷Íâ¼ü¹ØÏµ°¡£¿
×¢£ºÊÇÔÚ¿ÉÊÓ»¯Ï£¬¶ø²»ÊÇдsqlÓï¾äÈö£¡£¡£¡
ÄãÓõÄÊÇʲ÷Ṥ¾ßÄØ?

ÁíÍâÄãҪעÒâÄãµÄmysql±í類ÐÍ.Èç¹û類ÐÍÊÇmyisam ÊDz»Ö§³ÖÖ÷Íâ鍵µÄ.



¿ÉÒÔʹÓÃORMÀà
doctirne
¹¦¹ú²ú
queryphp 

http://code.google.com/p/queryphp/downloads/list

²»¹ýËÙ¶ÈÂýµã

ѧϰ¡£¡£¡£¡£

Õâ¸ö²»Çå³þ£¬Ò»Ö±ÔÚ³ÌÐòÀï¿ØÖÆµÄ

Ò»Ö±ÓÃPHPMYADMINûÓпÉÊÓ²Ù×÷£¬Ö±½Ó°Ñ1:nÄ£Ð͵Ä1ÉèÖóÉÖ÷Ë÷Òý£¬nÉèÖÃ³ÉÆÕͨË÷Òý

ÄÇÈç¹ûÓÃsqlÓï¾äÓÖÔõôÀ´ÉèÖÃÄØ£¿ÊÇÕâÑùÂð£¿
alter table tablename constraint PK_name primary key(ÁÐÃû)£»
дµÄ¶ÔÂ𣬻¹ÓÐÍâ¼üÄØ£¿









ÒòΪÎÒÊdzõѧÈö£¬ËùÒԺöණÎ÷¶¼²»Ì«»á£¬ÄãÃÇ˵µÄһЩÃû´ÊÊõÓïÎÒҲû½Ó´¥¹ýµÄ£¡


ÒýÓÃ

¿ÉÊÓ:ʹÓÃnavicat
SQLÓï¾ä:ALTER TABLE `ÕâÀïÊäÈëÏëÔÚÄĸö±íÔö¼ÓÍâ¼ü` ADD CONSTRAINT `ÕâÀïÊäÈëÍâ¼üÃû` FOREIGN KEY (`ÕâÀïÊäÈëÍâ¼ü×Ö¶Î`) REFERENCES `ÕâÀïÊäÈëÊÇÄĸö±íµÄÍâ¼ü` (`ÕâÀïÊäÈë¶ÔÓ¦ÄǸö±íµÄÄĸö×Ö¶Î`) ON DELETE CASCADE ON UPDATE CASCADE;
×îºóµÄON DELETE CASCAD¡­¡­

Äãտţ²æ....

ÄÇÓÐʲô°ì·¨£¬ÄãÒ²²»ÊÇÒ»¿ªÊ¼¾Í»á°É£¡

colerclub,лл°¡£¬ÄãÔõô֪µÀÎÒ»áÎÊ£ºON DELETE CASCADE ON UPDATE CASCADEÕâÃû»°°¡£¬ÎÒ¾ÍÊDz»¶®Õâ¾äµÄÒâ˼Èö£¬²»¹ýÄãÒѾ­½âÊÍÁË£¬Ð»À²£¡

ÒýÓÃ

ÄÇÓÐʲô°ì·¨£¬ÄãÒ²²»ÊÇÒ»¿ªÊ¼¾Í»á°É£¡

Æäʵ¿ÉÒÔ²»ÓÃ×Ô¼ºÐ´sqlÓï¾ä½¨Á¢


Ïà¹ØÎÊ´ð£º

ÈçºÎÔÚphpÍøÕ¾ÖÐÌí¼Ó±³¾°ÒôÀÖ - PHP / »ù´¡±à³Ì

ÎÒÔÚÍøÕ¾µÄÒýµ¼Ò³ÖÐÌí¼ÓÁË<embed src="ÒôÀÖµØÖ·" autostart="true" loop="true" hidden="true"></embed>
Õâ¾ä»°£¬È»ºóÌø×ªÒ³Ãæºó£¬±³¾°ÒôÀÖ¾ÍûÓÐÁË£¬ÔõôÈÃÕ ......

±±¾©2ÄêPHP¾­ÑéÇó¼æÖ° - PHP / Framework

±±¾©2ÄêPHP¾­ÑéÇó¼æÖ°
½Ó·Ö

·¹ý½Ó·Ö£¡.¡£¡£¡£¡£¡£¡£¡£¡£¡£¡£

jf~~~~~~~~~~~~~~Ö§³Ö

ßÀ¡£¡£ÎÒÃÇÐèÒª¼æÖ°£¬¿ÉÊÇÔõôÁªÏµÄãѽ£¿

¶¥¡£¡£¡£ »Ø¸´ÄÚÈÝ »Ø¸´ÄÚÈÝÌ«¶ÌÁË£¡

º¼ÖÝÄãÈ¥²»È¥°¡ ¡£¡£¡£¡£¡ ......

mysqlÎÊÌ⣡ - Java / Java SE

String sqlCount="select count(*) from usertable where username='"+
userName+"'";Õâ¾ä»° ʲôÒâ˼°¡£¡
Õâ¾ä»°Êä³ö³öÀ´¾ÍÊÇ
select count(*) from usertable where username='ÄãµÄ±äÁ¿ ......

MYSQLµ÷¶ÈµÄÎÊÌâ - MS-SQL Server / ÒÉÄÑÎÊÌâ


3̨µçÄÔ£¬ÆäÖÐһ̨×÷ΪMYSQL·þÎñÆ÷£¬ÁíÍâ2̨ΪTOMCAT·þÎñÆ÷¡£
MYSQL·þÎñÆ÷ÀïÓÐÒ»Ìõ¼Ç¼£¬ IDΪ10.
ÏÖÔÚ2̨TOMCATͬʱ£¨100%£©·¢ÆðÐÞ¸ÄMYSQLÀïIDΪ10µÄÄÇÌõ¼Ç¼£¬±ÈÈçÐ޸ĴËID¼Ç¼ÀïijһÏîµÄÄÚÈÝ¡£ ±ÈÈçTOMCAT 1Ò ......
© 2009 ej38.com All Rights Reserved. ¹ØÓÚE½¡ÍøÁªÏµÎÒÃÇ | Õ¾µãµØÍ¼ | ¸ÓICP±¸09004571ºÅ