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

mysqlÖеÄÕýÔò±í´ïʽËÑË÷

Óï·¨£º
select * from table_name where column_name regexp 'ÕýÔò±í´ïʽ'
»òÇø·Ö´óСд
select * from table_name where column_name regexp binary 'ÕýÔò±í´ïʽ'
Ö§³ÖµÄÕýÔò±í´ïʽ·ûºÅ£º
.    ÈÎÒâ×Ö·û
|    »ò£¬È磺a|b|c
[]   ·¶Î§£¬±ÈÈ磺[a-z],[0-9],[^0-9]²»°üÀ¨0-9×Ö·û
^   ÔÚ[]ÖбíʾÅųý£¬·ñÔò±íʾƥÅ俪ͷ
\\   תÒ壬È磺\\\±íʾƥÅä\£¬\\.±íʾƥÅä.
*   0¸ö»ò¶à¸ö
+   1¸ö»ò¶à¸ö
?   0¸ö»ò1¸ö
{n}  n¸ö
{n,}  ²»ÉÙÓÚn¸ö
{n,m} nµ½m¸ö
$  Æ¥Åä½áβ
=====================
[:alnum:]  ÈÎÒâ×ÖĸºÍÊý×Ö£¬Ï൱ÓÚ[a-zA-Z0-9]
[:alpha:]   ÈÎÒâ×Ö·û[a-zA-Z]
[:blank:]   ¿Õ¸ñºÍÖÆ±í[\\t]
[:cntrl:]     ascii¿ØÖÆ×Ö·û
[:digit:]     Êý×Ö[0-9]
[:graph:][:print:]   ¿É´òÓ¡×Ö·û
[:lower:]   Сд×Öĸ
[:upper:]   ´óд×Öĸ
[:xdigit:]   Ê®Áù½øÖÆÊý[a-fA-F0-9]
ÀýÈ磺[[:digit:]]{4}£¬Æ¥ÅäÈÎÒâ4λÊý×Ö


Ïà¹ØÎĵµ£º

¹ØÓÚMysqlÊÇ·ñÂú×ãC2¼¶µÄÌÖÂÛ


====================================================
Òý×Ô£ºhttp://blog.sina.com.cn/s/blog_538a9d1901008f9g.html
ʲôÊÇC2¼¶°²È«ÐÔ£¿°²È«ÐԵķÖÀàÊÇÔõÑùµÄ£¿(2008-01-30 17:04:39)
  
DÀࣺ×îµÍ±£»¤£¬±£Áô¸ø²»ÄÜͨ¹ý¸ü¸ß¼¶±ð¼ì²éµÄϵͳ
C1£º½÷É÷±£»¤£¬ÒªÇóÓлùÓÚÓû§¼¶±ðµÄ¿ØÖÆÀ´±£»¤Êý¾Ý£¬Ö÷Òª·ÀÖ ......

ʵ¼ù¾­Ñé»ã¼¯³ÉµÄMySQLÓ¦ÓÃÖ¸ÄÏ


 
¡¾ÊéÃû¡¿¸ßÐÔÄÜMySQL£¨µÚ¶þ°æ£©
¡¾Ô­ÊéÃû¡¿High Performance MySQL, second edition
¡¾×÷Õß¡¿Baron Schwartz£¬Peter Zaitsev£¬Vadim
Tkachenko£¬Jeremy D.Zawodny£¬Arjen Lentz£¬Derek
J.Balling  Öø
¡¾ÒëÕß¡¿ÍõС¶« Àî¾ü ¿µ½¨Ñ« Òë
¡¾³ö°æÉç¡¿µç×Ó¹¤Òµ³ö°æÉç     
¡¾ÊéºÅ¡¿978- ......

mysqlÖвåÈëÒ»Ìõ¼Ç¼·µ»Ø¸Ã¼Ç¼id

1.select max(id) from user;
2.select last_insert_id() as id from user limit 1; 
(Õâ¸ö²âÊԵķµ»ØidÒ»Ö±ÊÇ0£¬ÓеãÎÊÌâ)
3.´¢´æ¹ý³Ì
1£©
oracelÖÐ
create sequence seqID
minvalue 1
maxvalue 999999999999999999999999999
start with 1
increment by 1
nocache
order;
create or replace procedure ......

MySQLÃüÁî

1. Á¬½Ómysql:
mysql -h Ö÷»úµØÖ· -u Óû§Ãû £­p
2.Í˳ömysql:exit
3. ÐÞ¸ÄÃÜÂë:
mysqlbinmysqladmin -uroot -p(oldpassword) password newpassword
4.Ôö¼ÓÓû§£º
Ìí¼ÓÒ»¸öÓû§test1 ÃÜÂëΪABC£»ÈÃËû¿ÉÒÔÔÚÈκÎÖ÷»úÉϵǼ,²¢¶ÔËùÓÐÊý¾Ý¿âÓвéѯ¡¢²åÈë¡¢Ð޸ġ¢É¾³ýµÄȨÏÞ¡£Ê×ÏÈÓÃÒÔrootÓû§Á¬Èë
mysql,È»ºó¼üÈëÒÔÏÂÃü ......

MysqlÍâ¼üÔ¼Êø

1.myisam±í²»Ö§³ÖÍâ¼ü£¬innodb²ÅÖ§³ÖÍâ¼ü
2.mysqlÍâ¼üµÄÁÐÀàÐͺÍÖ÷±íÖÐÏàÓ¦µÄÖ÷¼üÁÐÀàÐͱØÐëÒ»Ö£¬¼´ÀàÐÍÒ»Ö¡¢³¤¶ÈÒ»Ö£¬·ñÔò»á±¨´í¡£ERROR 1005: Can't create table (errno: 150)
3.ÔÚÒ»¸öÊý¾Ý¿âÖÐÍâ¼üÃû×Ö²»ÄÜÖØ¸´£¬·ñÔò»á±¨ERROR 1005: Can't create table 'XXXXXX' (errno: 121) ......
© 2009 ej38.com All Rights Reserved. ¹ØÓÚE½¡ÍøÁªÏµÎÒÃÇ | Õ¾µãµØÍ¼ | ¸ÓICP±¸09004571ºÅ