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

MySQL¼¯ÈºÊµ¼ùÏê½âϵÁÐÖ®¶þ£ºÈçºÎ°²×°Management Node

±ÊÕߣ¨mqboss£©½üÆÚÔÚ×öMySQL¼¯ÈºµÄ¼¼Êõµ÷ÑУ¬»áÂ½Ðø°Ñ×Ô¼ºµÄÐĵÃÌå»áд³öÀ´ºÍ´ó¼Ò·ÖÏí£¬Çë´ó¼Ò¼ÌÐø¹Ø×¢¡£
1.´Ómysq¹Ù·½ÍøÕ¾ÏÂÔØ°²×°Îļþmysql-cluster-gpl-7.0.9-solaris10-sparc-64bit.tar.gz£¬²¢Í¨¹ýFTPÉÏ´«µ½Solaris·þÎñÆ÷ÉÏ£»
2.Ìí¼ÓÓû§×émysqlºÍÓû§mysql(×¢£ºmysqlÓû§ÊôÓÚmysqlÓû§×é)
shell> groupadd mysql
shell> useradd -g mysql mysql
3.½øÈëmysql-cluster-gpl-7.0.9-solaris10-sparc-64bit.tar.gzÎļþËùÔÚµÄĿ¼£¬½âѹËõ¸ÃÎļþ£º
µÃµ½Îļþ¼Ðmysql-cluster-gpl-7.0.9-solaris10-sparc-64bit£¬ÎªÁË·½±ãÆð¼û£¬°Ñ¸ÃÎļþÃûÖØÃüÃûΪmysql-cluster-7.0.9£»
´Ë´¦¼Ù¶¨¸ÃÎļþ¼ÐÔÚĿ¼/var/tmpÏ£¬ÒÀ´ÎÖ´ÐÐÒÔÏÂÃüÁ
shell> cd /var/tmp
shell> cd mysql-cluster-7.0.9
shell> cp bin/ndb_mgm* /usr/local/bin
Ä¿µÄÊǰÑndb_mgmºÍndb_mgmd¿½±´µ½/usr/local/binĿ¼ÏÂ
´Ëºó£¬¿ÉÒÔ·ÅÐĵİÑmysql-cluster-7.0.9Îļþ¼Ðɾ³ý
4.½øÈë/usr/local/binĿ¼Ï£¬²¢ÊÚÓèndb_mgmºÍndb_mgmd¿ÉÖ´ÐÐȨÏÞ£¬¾ßÌåÈçÏ£º
shell> cd /usr/local/bin
shell> chmod +x ndb_mgm*
×÷Õß¼ò½é£º mqboss ÊÇ×÷Õß±ÊÃû£¬Ôø¾ÍÖ°ÓÚÆÕÌìºÍÖÐÐË£¬ÏÖÔÚÒ»ÍâÆó¹¤×÷£¬Ò»Ö±´ÓÊÂͨÐÅÈí¼þµÄ²âÊÔ¡¢¿ª·¢ÓëÉè¼Æ¹¤×÷£¬×¨×¢ÓÚJAVA, J2EE, WEB, DBµÈÁìÓòµÄÀíÂÛÑо¿¡¢²âÊÔ¡¢¿ª·¢ÓëÉè¼Æ


Ïà¹ØÎĵµ£º

×ÊÔ´ÍÆ¼ö Îå¸ö³£ÓÃMySQLͼÐλ¯¹ÜÀí¹¤¾ß

  À´Ô´:Ô¹ⲩ¿Í   ºËÐÄÌáʾ£ºMySQLµÄ¹ÜÀíά»¤¹¤¾ß·Ç³£¶à£¬³ýÁËϵͳ×Ô´øµÄÃüÁîÐйÜÀí¹¤¾ßÖ®Í⣬»¹ÓÐÐí¶àÆäËûµÄͼÐλ¯¹ÜÀí¹¤¾ß£¬ÕâÀïÎÒ½éÉÜÎå¸öÎÒ¾­³£Ê¹ÓõÄMySQLͼÐλ¯¹ÜÀí¹¤¾ß£¬¹©´ó¼Ò²Î¿¼¡£ MySQLÊÇÒ»¸ö·Ç³£Á÷ÐеÄСÐ͹ØÏµÐÍÊý¾Ý¿â¹ÜÀíϵͳ£¬2008Äê1ÔÂ16ºÅ±»Sun¹«Ë¾ÊÕ¹º¡£Ä¿Ç°MySQL±»¹ã·ºµØÓ¦ÓÃÔÚInternet ......

Oracle,MySQL,MSSQL ServerºÍAccessÊý¾Ý¿âµÄͳ¼Æº¯Êý

Oracle,MySQL,MSSQL ServerºÍAccessÊý¾Ý¿âµÄͳ¼Æº¯Êý
ÎÒÃÇÔÚ±à³ÌÖг£ÓõÄͳ¼Æº¯ÊýÓмÆÊý,ÇóºÍ,Çó×î´óÖµ,Çó×îСֵ,Ç󯽾ù,·½²îºÍ±ê×¼²î.
·½²î(Variance)
·½²îÊDZê׼ƫ²îµÄƽ·½¡£×éÖеÄÖµ£¬ÓëËüÃÇÆ½¾ùÖµÖ®¼äÆ«Àë³Ì¶ÈµÄ¶ÈÁ¿¡£
±ê׼ƫ²î(Standard Deviation)
Ò»¸ö²ÎÊý£¬Ö¸³öÒ»ÖÖ·½Ê½£¬Ò»¸ö¸ÅÂʺ¯ÊýÒÔÕâÖÖ·½Ê½·Ö²¼ÔÚÆ½¾ùÖµ¸ ......

mysql´æ´¢¹ý³Ì¼ò½é

Õª×Ôhttp://blog.csdn.net/ljah/archive/2006/11/08/1373959.aspx
¸ñʽ£º
CREATE PROCEDURE ¹ý³ÌÃû ([¹ý³Ì²ÎÊý[,...]])
[ÌØÐÔ ...] ¹ý³ÌÌå
CREATE FUNCTION º¯ÊýÃû ([º¯Êý²ÎÊý[,...]])
RETURNS ·µ»ØÀàÐÍ
[ÌØÐÔ ...] º¯ÊýÌå
¹ý³Ì²ÎÊý:
[ IN | OUT | INOUT ] ²ÎÊýÃû ²ÎÊýÀàÐÍ
º¯Êý²ÎÊý:
²ÎÊýÃû ²ÎÊýÀàÐÍ
·µ»ØÀàÐÍ: ......

mysql ѧϰ

truncate table Çå¿Õ±í£¬ºÍdeleteÏàËÆ£¬µ«ÊÇÔÚ±í·Ç³£´óµÄʱºò£¬ËüÊÇÖð²½Êͷŵġ£
insert Èç¹ûÔÚ²åÈëʱ£¬Ä³¸ö×ֶδæÔÚ£¬ÎÒÏë¸üпÉÒÔͨ¹ý insert into tablename values() on duplicate key update id=id+1;
insert into tablename values(default) ĬÈÏ×ÔÔö³¤
select last_insert_id() È¡×îºó²åÈëÒ»Ìõ¡£ ......

mysqlѧϰ5

Ð޸ĺͱ¸·Ý¡¢Åú´¦Àí
   ÓÐʱÎÒÃÇÒª¶ÔÊý¾Ý¿â±íºÍÊý¾Ý¿â½øÐÐÐ޸ĺÍɾ³ý£¬¿ÉÒÔÓÃÈçÏ·½·¨ÊµÏÖ£º
1¡¢Ôö¼ÓÒ»ÁУº
ÈçÔÚÇ°ÃæÀý×ÓÖеÄmytable±íÖÐÔö¼ÓÒ»ÁбíʾÊÇ·ñµ¥Éísingle:
mysql> alter table mytable add column single char(1);
2¡¢Ð޸ļǼ
½«abccsµÄsingle¼Ç¼ÐÞ¸ÄΪ“y”£º
mysql> ......
© 2009 ej38.com All Rights Reserved. ¹ØÓÚE½¡ÍøÁªÏµÎÒÃÇ | Õ¾µãµØÍ¼ | ¸ÓICP±¸09004571ºÅ