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

Mysql×Ö·û±àÂëÂÒÂë½â¾ö·½·¨

µ¼³öÊÇ,ûÓÐÖ¸¶¨±àÂë
·½·¨Ò»  phpmyadmin´¦Àí·½Ê½
  ¼ì²éphp-mbstringÊÇ·ñÓпÉ×°,ûÓа²×°ÉÏ yum -y install php-mbstring
  ´ò¿ªphpmyadmin Öе¼³ö,ÔÙ´Óphpmyadmin µ¼ÈëÊÇÑ¡È¡¶þÖƽø(binary)
  Èç¹û»¹²»ÐÐ,ÔÚmy.cnf mysqldÖмÓÈë default-character=ÄãµÄ±àÂë, ÖØÆômysql ÔÙÊÔ
·½·¨¶þ mysqldump ´¦Àí·½Ê½
µ¼³ö·½Ê½
mysqldump -u root -p --default-character-set=±àÂë Êý¾ÝÃû³Æ> file.sql
Àý
mysqldump -u root -p --default-character-set=big5 discuss_chi> dis.sql
---------------------
µ¼È뷽ʽ
mysqldump -u root -p --default-character-set=±àÂë Êý¾ÝÃû³Æ< file.sql
Àý
mysql -u root -p --default-character-set=binary -f discuss_chi<file.sql  
Ò²¿ÉÒÔ
mysql -u root -p --default-character-set=big5 -f discuss_chi<dis.sql
µ«Êǽ¨ÒéʹÓöþ½øÖÆ,°²È«D!
·½·¨Èý£º
ÒÔÔ­À´µÄ×Ö·û¼¯Îªlatin1ΪÀý£¬Éý¼¶³ÉΪutf8µÄ×Ö·û¼¯¡£Ô­À´µÄ±í: old_table (default charset=latin1)£¬ÐÂ±í£ºnew_table(default charset=utf
µÚÒ»²½£ºµ¼³ö¾ÉÊý¾Ý
mysqldump --default-character-set=latin1 -h localhost -u root -B my_db --tables old_table > old.sql
µÚ¶þ²½£º×ª»»±àÂë(ÀàËÆunix/linux»·¾³ÏÂ)
iconv -f gb2312 -t utf-8 -c old.sql > new.sql
»òÕß¿ÉÒÔÈ¥µô -f ²ÎÊý£¬ÈÃiconv×Ô¶¯ÅжÏÔ­À´µÄ×Ö·û¼¯
iconv -t utf-8 -c old.sql > new.sql
ÔÚÕâÀ¼Ù¶¨Ô­À´µÄÊý¾ÝĬÈÏÊÇgb2312±àÂë¡£
µÚÈý²½£ºµ¼Èë
ÐÞ¸Äold.sql£¬ÔÚ²åÈë/¸üÐÂÓï¾ä¿ªÊ¼Ö®Ç°£¬Ôö¼ÓÒ»ÌõsqlÓï¾ä£º
"SET NAMES utf8;"
mysql -h localhost -u root -p my_db > new.sql


Ïà¹ØÎĵµ£º

mysql״̬ status

http://blog.163.com/mysqldba@126/blog/static/1315356342009931103834396/
×î½ü¿´ÁË¿´mysqlµÄ״̬±äÁ¿£¬¸Ð¾õºÃ¶à¸úÒÔÇ°×Ô¼ºÏëÏóµÄ²»Ò»Ñù¡£ÎªÁËÒÔºóÄܼ°Ê±·¢ÏÖ×Ô¼ºµÄ´íÎó,¾ÍÏȼÇÏÂÀ´;
http://dev.mysql.com/doc/refman/5.1/en/server-status-variables.html
mysql> show status;
Com_xxx
Óï¾ä¼ÆÊý±äÁ¿±íʾÿ¸öxxx ......

ÓÅ»¯MySQL²åÈë·½·¨µÄÎå¸öÃîÕÐ


ÒÔÏÂÊÇÉæ¼°µ½²åÈë±í¸ñµÄ²éѯµÄ5ÖָĽø·½·¨£º
1)ʹÓÃLOAD DATA INFILE´ÓÎı¾ÏÂÔØÊý¾ÝÕ⽫±ÈʹÓòåÈëÓï¾ä¿ì20±¶¡£
2)ʹÓôøÓжà¸öVALUESÁбíµÄINSERTÓï¾äÒ»´Î²åÈ뼸ÐÐÕ⽫±ÈʹÓÃÒ»¸öµ¥ÐвåÈëÓï¾ä¿ì¼¸±¶¡£µ÷Õûbulk_insert_buffer_size±äÁ¿Ò²ÄÜÌá¸ß£¨Ïò°üº¬Ðеıí¸ñÖУ©²åÈëµÄËٶȡ£
3)¿ÉÒÔ¶Ômyisam±í²¢ÐвåÈëConcurrent_i ......

MYSQL my.cnfÅäÖÃÖÐÎÄÏê½â

MYSQL--my.cnfÅäÖÃÖÐÎÄÏê½â ZZ2007Äê08ÔÂ16ÈÕ ÐÇÆÚËÄ 15:53mysqld³ÌÐò--Ŀ¼ºÍÎļþ
ÒýÓÃ
basedir = path   ʹÓøø¶¨Ä¿Â¼×÷Ϊ¸ùĿ¼(°²×°Ä¿Â¼)¡£
character-sets-dir = path   ¸ø³ö´æ·Å×Å×Ö·û¼¯µÄĿ¼¡£
datadir = path   ´Ó¸ø¶¨Ä¿Â¼¶ÁÈ¡Êý¾Ý¿âÎļþ¡£
pid-file = filename   Î ......

MySQLѧϰ(3) ÊÓͼ£¬Óα꣬Óï¾ä¿é¶ù

1.MySQL´´½¨ÊÓͼµÄ¼òµ¥Óï¾äΪ£ºCREATE VIEW view_name  AS SELECT * from TABLE_NAME;
²»ÄܶԴ¥·¢Æ÷´´½¨ÊÓͼ(VIEW)¡£µ«ÊÇÔÚ5.1.4ÖÐÊÇÕâÑùÃèÊöµÄ£¬A view can be created from many kinds of SELECT statements. It can refer to base tables or other views. It can use joins, UNION, and subqueries¡£´óÖÂÒâ˼ÊÇÊÓÍ ......
© 2009 ej38.com All Rights Reserved. ¹ØÓÚE½¡ÍøÁªÏµÎÒÃÇ | Õ¾µãµØͼ | ¸ÓICP±¸09004571ºÅ