ÈçºÎÖØÆôMySQL·þÎñ
RedHat Linux (Fedora Core/Cent OS)
1.Æô¶¯£º/etc/init.d/mysqld start
2.Í£Ö¹£º/etc/init.d/mysqld stop
3.ÖØÆô£º/etc/init.d/mysqld restart
Debian / Ubuntu Linux
1.Æô¶¯£º/etc/init.d/mysql start
2.Í£Ö¹£º/etc/init.d/mysql stop
3.ÖØÆô£º/etc/init.d/mysql restart
Windows
1.µã»÷“¿ªÊ¼”->“ÔËÐД£¨¿ì½Ý¼üWin+R£©
2.Æô¶¯£ºÊäÈë net stop mysql
3.Í£Ö¹£ºÊäÈë net start mysql
Ìáʾ
Redhat Linux Ò²Ö§³Öservice command£¬
Æô¶¯£º# service mysqld start
Í£Ö¹£º# service mysqld stop
ÖØÆô£º# service mysqld restart
Windowsϲ»ÄÜÖ±½ÓÖØÆô(restart)£¬Ö»ÄÜÏÈÍ£Ö¹£¬ÔÙÆô¶¯¡£
Ïà¹ØÎĵµ£º
´Óhttp://hackmysql.com/mysqlslaÏÂÔØmysqlsla£¬µ±Ç°×îаæΪ£º2.03
tar zxvf mysqlsla-2.03.tar.gz
cp mysqlsla-2.03/bin/mysqlsla /usr/local/bin
Èç¹ûÌáʾ“Can’t locate DBI.pm”£¬Ö´ÐÐÒÔÏÂÃüÁî
yum install perl-DBI perl-DBD-MySQL -y
Õâʱ¾Í¿ÉÒÔʹÓÃmysqlslaÁË£¬Ó÷¨ÈçÏÂ
mysqlsla -lt slo ......
MySQLÊý¾Ý¿âµÄ¼òµ¥²Ù×÷
Ò».´´½¨Êý¾Ý¿â ͨ¹ýshow databases;ÃüÁîÏÔʾËùÓÐÒÑ´´½¨µÄÊý¾Ý¿âµÄÃû³Æ¡£
ͨ¹ýcreate database XXX;´´½¨Êý¾Ý¿âÃûΪXXXµÄÊý¾Ý¿â¡£ ÀýÈ磺mysql>create database test; ¶þ.´´½¨±íµ¥ ͨ¹ýcreate table XXX();´´½¨ ÀýÈç: È»ºó¿ÉÒÔͨ¹ýdescÃüÁî²é¿´±íµ¥: ÀýÈç: Èý ......
Õë¶Ôselect * from table where col1 > number order by col2 desc¡£
Æäʵ°´ÕÕ³£¹æµÄ·½·¨¿ÉÒÔÕâÑùÉè¼Æ£ºkey(col1, col2)
µ«ÊÇÕâÖÖ°ì·¨ÔÚmysqlÀï²»ËãÊÇÀíÏëµÄ£¬whereÌõ¼þÀïÏÞ¶¨Ë÷ÒýÇ°²¿·ÖÊÇÒ»¸ö·¶Î§µÄÇé¿öϺóÃæµÄorder by»¹ÊÇ»áÓÐfilesort¡£Èç¹ûwhereÌõ¼þÀïÏÞ¶¨Ë÷ÒýÇ°²¿·ÖÊÇÒ»¸ö³£Á¿£¬ÄÇôorder by¾Í»áÓÐЧÀûÓÃË÷Òý¡£À ......
ǰһֱûעÒâÕâÒ»µã£¬Í»È»Ò»ÉÁÄîÏëÆðÀ´£¬ÏÂÃæßëß룺
±È·½ËµÓÐÒ»¸öÎÄÕÂ±í£¬ÎÒÃÇҪʵÏÖij¸öÀà±ðÏ°´Ê±¼äµ¹ÐòÁбíÏÔʾ¹¦ÄÜ£º
SELECT * from articles WHERE category_id = … ORDER BY created DESC LIMIT …
ÕâÑùµÄ²éѯºÜ³£¼û£¬»ù±¾Éϲ»¹ÜʲôӦÓÃÀﶼÄÜÕÒ³öÒ»´ó°ÑÀàËƵÄSQLÀ´£¬Ñ§ÔºÅɵĶÁÕß¿´µ½ÉÏÃæµÄS ......
±íÃûΪtableµÄ±íÄÚÈÝÈçÏÂ
Year month value
2009 1 1.1
2009 2 1.2
2009 3 1.3
2009 4 1.4
2010 1 2.1
2010 2 2.2
2010 3 &nb ......