ÔõÑù½øÐÐMysqlÔ¶³ÌÁ¬½Ó
ÔõÑù½øÐÐMysqlÔ¶³ÌÁ¬½Ó
ÎÒÓÃ:
grant all privileges on *.* to ´´½¨µÄÓû§Ãû@localhost identified by "ÃÜÂë";
flush privileges; \* ˢиղŵÄÄÚÈÝ*\
========================
mysqlĬÈÏÊDz»ÔÊÐíÔ¶³ÌÁ¬½ÓµÄ£¬ÒòΪÓкܴóµÄ°²È«Òþ»¼¡£¡£
ËùÒÔÐèÒªÊÖ¶¯Ôö¼Ó¿ÉÒÔÔ¶³Ì·ÃÎÊÊý¾Ý¿âµÄÓû§¡£
ÏÂÃæÊÇÁ¬½Ó·½Ê½£º
# mysql -u root -p
>;grant select,insert,update,delete on *.* to root@"202.11.10.253" Identified by "dboomysql";
----ÔÊÐíµØÖ·202.11.10.253ÉÏÓÃrootÓû§£¬ÃÜÂëdboomysqlÀ´Á¬½ÓmysqlµÄËùÓÐÊý¾Ý¿â£¬¸¶¸øselect,insert,update,deleteȨÏÞ¡£
grant all on *.* to root@"202.11.10.253" Identified by "dboomysql"
ÔÊÐíµØÖ·202.11.10.253ÉÏÓÃrootÓû§£¬ÃÜÂëdboomysqlÀ´Á¬½ÓmysqlµÄËùÓÐÊý¾Ý¿â£¬¸¶¸øËùÓÐȨÏÞ¡£
ÕâÑùÓÃÊý¾Ý¿â¹ÜÀíÈí¼þ¾Í¿ÉÒÔÔ¶³Ì·ÃÎÊMysqlÁË¡£
======================================
A1:
Ô¶³ÌÁ¬½Óµ½MySQLÐèÒª×öµÄ
1. ½øÈëMySQL,´´½¨Ò»¸öÐÂÓû§xuys:
¸ñʽ: grant ȨÏÞ on Êý¾Ý¿âÃû.±íÃû Óû§@µÇ¼Ö÷»ú identified by "Óû§ÃÜÂë";
grant select,update,insert,delete on *.* to xuys@192.168.88.234 identified by "xuys1234";
²é¿´½á¹û,Ö´ÐÐ:
use mysql;
select host,user,password from user;
¿ÉÒÔ¿´µ½ÔÚuser±íÖÐÒÑÓиղŴ´½¨µÄxuysÓû§,host×ֶαíʾµÇ¼µÄÖ÷»ú,ÆäÖµ¿ÉÒÔÓÃIP,Ò²¿ÉÓÃÖ÷»úÃû,½«host×ֶεÄÖµ¸ÄΪ%¾Í±íʾÔÚÈκοͻ§¶Ë»úÆ÷ÉÏÄÜÒÔxuysÓû§µÇ¼µ½MySQL·þÎñÆ÷,½¨ÒéÔÚ¿ª·¢Ê±ÉèΪ%.
update user set host = '%' where user = 'xuys';
2.
./mysqladmin -u root -p pwd reload
./mysqladmin -u root -p pwd shutdown
3.
./mysqld_safe --user=root &
¼Çס: ¶ÔÊÚȨ±íµÄÈκÎÐ޸ͼÐèÒªÖØÐÂreload,¼´Ö´ÐеÚ3²½.
Èç¹û¾¹ýÒÔÉÏ3¸ö²½Ö軹ÊÇÎÞ·¨´Ó¿Í»§¶ËÁ¬½Ó,ÇëÖ´ÐÐÒÔϲÙ×÷,ÔÚMySQLÊý¾Ý¿âµÄdb±íÖвåÈëÒ»Ìõ¼Ç¼:
use mysql;
ins
Ïà¹ØÎĵµ£º
MySQLÖ§³Öµ¥Ïò¡¢Òì²½¸´ÖÆ£¬¸´Öƹý³ÌÖÐÒ»¸ö·þÎñÆ÷³äµ±Ö÷·þÎñÆ÷£¬¶øÒ»¸ö»ò¶à¸öÆäËü·þÎñÆ÷³äµ±´Ó·þÎñÆ÷¡£Ö÷·þÎñÆ÷½«¸üÐÂдÈë¶þ½øÖÆÈÕÖ¾Îļþ£¬²¢Î¬»¤ÈÕÖ¾ÎļþµÄÒ»¸öË÷ÒýÒÔ¸ú×ÙÈÕ־ѻ·¡£µ±Ò»¸ö´Ó·þÎñÆ÷Á¬½Óµ½Ö÷·þÎñÆ÷ʱ£¬Ëü֪ͨÖ÷·þÎñÆ÷´Ó·þÎñÆ÷ÔÚÈÕÖ¾ÖжÁÈ¡µÄ×îºóÒ»´Î³É¹¦¸üеÄλÖᣴӷþÎñÆ÷½ÓÊÕ´ÓÄÇʱÆð·¢ÉúµÄÈκθüУ¬È ......
sphinx°æ±¾Ê¹ÓõÄÊÇcoreseekÐ޸ĵÄÖ§ ³ÖÖÐÎļìË÷µÄ°æ±¾,ÖÐÎÄ´Ê¿âʹÓà coreseek¿ª·¢µÄlibmmseg
mysqlÊÜsphinxÖÐsphinxseÒýÇæÒªÇó°²×°ÁËmysql-5.0.37×öÉú²ú»·¾³µÄmysql-5.0.70µÄ´Ó¿â
±àÒësphinx,libmmsegÒÔ¼°mysql:
±àÒë°²×°libmmseg:
./configure --prefix=/usr/local/mmseg && make -j5 && make instal ......
ËùÓеÄÊýѧº¯ÊýÔÚÒ»¸ö³ö´íµÄÇé¿öÏ·µ»ØNULL¡£
-
µ¥Ä¿¼õ¡£¸Ä±ä²ÎÊýµÄ·ûºÅ¡£
mysql> select - 2;
×¢Ò⣬Èç¹ûÕâ¸ö²Ù×÷·ûÓëÒ»¸öBIGINTʹÓ㬷µ»ØÖµÊÇÒ»¸öBIGINT£¡ÕâÒâζ×ÅÄãÓ¦¸Ã±ÜÃâÔÚÕûÊýÉÏʹÓÃ-£¬ÄÇ¿ÉÄÜÓÐÖµ-2^63£¡
ABS(X)
·µ»ØXµÄ¾ø¶ÔÖµ¡£
mysql ......
¡¡¡¡ÓÃC++²Ù×÷MySQLÊý¾Ý¿âÀࣺ
¡¡¡¡×¢ÊÍ£ºÕ⼸¸öÀà¶Ô´¦Àí²»ÊǺܴóÊý¾ÝÁ¿µÄ²Ù×÷ÊǺÜÀíÏëµÄ£¬ µ«²»ÊÊÒËÌØ´óÐ͵ÄÊý¾ÝµÄ²éѯ£¬ÒòΪԴÂëÖн«²éѯµ½µÄÊý¾ÝÖ±½Ó·ÅÈëÁËÄÚ´æ¡£
¡¡¡¡/*
¡¡¡¡* project:
¡¡¡¡* ͨÓÃÄ£¿é ( Óà c++ ´¦Àí mysql Êý¾Ý¿âÀ࣬ÏñADO )
¡¡¡¡*
¡¡¡¡* description:
¡¡¡¡*
¡¡¡¡* ͨ¹ýDataBase,Reco ......
Èç¹ûÄãÊǸöÈü³µÊÖ£¬²¢ÇÒ°´Ò»Ï°´Å¥¾ÍÄܹ»Á¢¼´¸ü»»ÒýÇæ¶ø²»ÐèÒª°Ñ³µ¿ªµ½³µ¿âÀïÈ¥»»£¬ÄÇ»áÊÇʲô¸Ð¾õÄØ£¿MySQLÊý¾Ý¿âΪ¿ª·¢ÈËÔ±Ëù×öµÄ¾ÍºÃÏñÊǰ´°´Å¥»»ÒýÇæ£»ËüÈÃÄãÑ¡ÔñÊý¾Ý¿âÒýÇæ£¬²¢¸øÄãÒ»Ìõ¼òµ¥µÄ;¾¶À´Çл»Ëü¡£
MySQLµÄ×Ô´øÒýÇæ¿Ï¶¨Êǹ»ÓÃÁË£¬µ«ÊÇÔÚÓÐЩÇé¿öÏ£¬ÆäËûµÄÒýÇæ¿ÉÄÜÒª±ÈÊÖÍ·ËùÓøüÊʺÏÍê³ÉÈÎÎñ¡£Èç¹ûÔ¸ ......