mysql ±¨´í´úÂë˵Ã÷
mysql³ö´íÁË,ÒÔÇ°ÍùÍù¿¿²Â.ÓÐÁËÕâÕűí,Ò»²é¾Í³öÀ´ÁË.·½±ã²»ÉÙ.Ìع²ÏíÓÚÖÚ
1005£º´´½¨±íʧ°Ü
1006£º´´½¨Êý¾Ý¿âʧ°Ü
1007£ºÊý¾Ý¿âÒÑ´æÔÚ£¬´´½¨Êý¾Ý¿âʧ°Ü
1008£ºÊý¾Ý¿â²»´æÔÚ£¬É¾³ýÊý¾Ý¿âʧ°Ü
1009£º²»ÄÜɾ³ýÊý¾Ý¿âÎļþµ¼ÖÂɾ³ýÊý¾Ý¿âʧ°Ü
1010£º²»ÄÜɾ³ýÊý¾ÝĿ¼µ¼ÖÂɾ³ýÊý¾Ý¿âʧ°Ü
1011£ºÉ¾³ýÊý¾Ý¿âÎļþʧ°Ü
1012£º²»ÄܶÁȡϵͳ±íÖеļǼ
1020£º¼Ç¼Òѱ»ÆäËûÓû§ÐÞ¸Ä
1021£ºÓ²ÅÌÊ£Óà¿Õ¼ä²»×㣬Çë¼Ó´óÓ²ÅÌ¿ÉÓÿռä
1022£º¹Ø¼ü×ÖÖظ´£¬¸ü¸Ä¼Ç¼ʧ°Ü
1023£º¹Ø±Õʱ·¢Éú´íÎó
1024£º¶ÁÎļþ´íÎó
1025£º¸ü¸ÄÃû×Öʱ·¢Éú´íÎó
1026£ºÐ´Îļþ´íÎó
1032£º¼Ç¼²»´æÔÚ
1036£ºÊý¾Ý±íÊÇÖ»¶ÁµÄ£¬²»ÄܶÔËü½øÐÐÐÞ¸Ä
1037£ºÏµÍ³ÄÚ´æ²»×㣬ÇëÖØÆôÊý¾Ý¿â»òÖØÆô·þÎñÆ÷
1038£ºÓÃÓÚÅÅÐòµÄÄÚ´æ²»×㣬ÇëÔö´óÅÅÐò»º³åÇø
1040£ºÒѵ½´ïÊý¾Ý¿âµÄ×î´óÁ¬½ÓÊý£¬Çë¼Ó´óÊý¾Ý¿â¿ÉÓÃÁ¬½ÓÊý
1041£ºÏµÍ³ÄÚ´æ²»×ã
1042£ºÎÞЧµÄÖ÷»úÃû
1043£ºÎÞЧÁ¬½Ó
1044£ºµ±Ç°Óû§Ã»ÓзÃÎÊÊý¾Ý¿âµÄȨÏÞ
1045£º²»ÄÜÁ¬½ÓÊý¾Ý¿â£¬Óû§Ãû»òÃÜÂë´íÎó
1048£º×ֶβ»ÄÜΪ¿Õ
1049£ºÊý¾Ý¿â²»´æÔÚ
1050£ºÊý¾Ý±íÒÑ´æÔÚ
1051£ºÊý¾Ý±í²»´æÔÚ
1054£º×ֶβ»´æÔÚ
1065£ºÎÞЧµÄSQLÓï¾ä£¬SQLÓï¾äΪ¿Õ
1081£º²»Äܽ¨Á¢SocketÁ¬½Ó
1114£ºÊý¾Ý±íÒÑÂú£¬²»ÄÜÈÝÄÉÈκμǼ
1116£º´ò¿ªµÄÊý¾Ý±íÌ«¶à
1129£ºÊý¾Ý¿â³öÏÖÒì³££¬ÇëÖØÆôÊý¾Ý¿â
1130£ºÁ¬½ÓÊý¾Ý¿âʧ°Ü£¬Ã»ÓÐÁ¬½ÓÊý¾Ý¿âµÄȨÏÞ
1133£ºÊý¾Ý¿âÓû§²»´æÔÚ
1141£ºµ±Ç°Óû§ÎÞȨ·ÃÎÊÊý¾Ý¿â
1142£ºµ±Ç°Óû§ÎÞȨ·ÃÎÊÊý¾Ý±í
1143£ºµ±Ç°Óû§ÎÞȨ·ÃÎÊÊý¾Ý±íÖеÄ×Ö¶Î
1146£ºÊý¾Ý±í²»´æÔÚ
1147£ºÎ´¶¨ÒåÓû§¶ÔÊý¾Ý±íµÄ·ÃÎÊȨÏÞ
1149£ºSQLÓï¾äÓï·¨´íÎó
1158£ºÍøÂç´íÎ󣬳öÏÖ¶Á´íÎó£¬Çë¼ì²éÍøÂçÁ¬½Ó×´¿ö
1159£ºÍøÂç´íÎ󣬶Á³¬Ê±£¬Çë¼ì²éÍøÂçÁ¬½Ó×´¿ö
1160£ºÍøÂç´íÎ󣬳öÏÖд´íÎó£¬Çë¼ì²éÍøÂçÁ¬½Ó×´¿ö
1161£ºÍøÂç´íÎó£¬Ð´³¬Ê±£¬Çë¼ì²éÍøÂçÁ¬½Ó×´¿ö
1062£º×Ö¶ÎÖµÖظ´£¬Èë¿âʧ°Ü
1169£º×Ö¶ÎÖµÖظ´£¬¸üмǼʧ°Ü
1177£º´ò¿ªÊý¾Ý±íʧ°Ü
1180£ºÌá½»ÊÂÎñʧ°Ü
1181£º»Ø¹öÊÂÎñʧ°Ü
1203£ºµ±Ç°Óû§ºÍÊý¾Ý¿â½¨Á¢µÄÁ
Ïà¹ØÎĵµ£º
InnoDBÊÇmysqlÊý¾Ý¿âÖÐΨһһ¸öÖ§³ÖÍâ¼üµÄÒýÇ棬µ«ÊDzîÖµµÄʱºòÈ´µÃ×¢ÒâÒ»ÏÂ
±ÈÈçÓÐÁ½ÕÅ±í£¬album(id,name,path) £¬picture(id,name,path,parent_album)£¬ÆäÖбí2ÖÐparent_albumÊÇÍâ¼ü
´Ëʱ²îÖµinsert into picture (name,path,parent_album) values ("pic","path",68) (68ÊÇÒ»¸öÏà²áµÄid)
mysql»á±¨´í"Failed to read a ......
ÓкܶàÅóÓÑËäÈ»°²×°ºÃÁËmysqlµ«È´²»ÖªÈçºÎʹÓÃËü¡£ÔÚÕâƪÎÄÕÂÖÐÎÒÃǾʹÓÁ¬½ÓMYSQL¡¢ÐÞ¸ÄÃÜÂë¡¢Ôö¼ÓÓû§µÈ·½ÃæÀ´Ñ§Ï°Ò»Ð©MYSQLµÄ³£ÓÃÃüÁî¡£
Ò»¡¢Á¬½ÓMYSQL¡£
¸ñʽ£º mysql -hÖ÷»úµØÖ· -uÓû§Ãû £pÓû§ÃÜÂë
1¡¢Àý1£ºÁ¬½Óµ½±¾»úÉϵÄMYSQL¡£
Ê×ÏÈÔÚ´ò¿ªDOS´°¿Ú£¬È»ºó½øÈëĿ¼ mysqlbin£¬ÔÙ¼üÈëÃüÁîmysql -uroot -p£¬»Ø³µ ......
Analyze Table
MySQL µÄOptimizer£¨ÓÅ»¯Ôª¼þ£©ÔÚÓÅ»¯SQLÓï¾äʱ£¬Ê×ÏÈÐèÒªÊÕ¼¯Ò»Ð©Ïà¹ØÐÅÏ¢£¬ÆäÖоͰüÀ¨±íµÄcardinality£¨¿ÉÒÔ·ÒëΪ“É¢Áг̶Ȕ£©£¬Ëü±íʾij¸öË÷Òý¶ÔÓ¦µÄÁаüº¬¶àÉÙ¸ö²»Í¬µÄÖµ——Èç¹ûcardinality´ó´óÉÙÓÚÊý¾ÝµÄʵ¼ÊÉ¢Áг̶ȣ¬ÄÇôË÷Òý¾Í»ù±¾Ê§Ð§ÁË¡£
ÎÒÃÇ¿ÉÒÔʹÓÃSHOW& ......
mysql(°üÀ¨ËùÓÐ5.*ϵÁÐ,5.1.21֮ǰ)µÄÂý²éѯÈÕ־ĬÈÏÊÇÒÔÃëΪµ¥Î»µÄ,¿ÉÒÔͨ¹ýset [session|global] long_query_time=1Õâ¸ö×îµÍÒ²¾ÍÊÇ¿ÉÒÔÉèÖõ½1Ãë,¶ÔÓÚ0.5,0.005Ö®Àà¾ÍÎÞÄÜΪÁ¦ÁË,Õâʱºò¿ÉÒÔÓÐmicroslow patch(msl patch)²¹¶¡À´Íê³ÉÕâÒ»¹¤×÷,Õâ¸ö¹¦Äܵĺô¦×ÔÈ»²»ÑÔ¶øÓ÷. ÔÚmysql5.1.21¼°ÒÔºó°æ±¾¿ÉÒÔͨ¹ýset [session|gl ......
Èý²½×ߣº
1.ÔÚwindows-->perspective-->DB browser
2.Create a database connection profile
Çý¶¯ÏÂÔØ£º http://dev.mysql.com/downloads/
ÎļþÃû£ºmysql-connector-java-5.0.4-bin
3.Open a database connection
Á´½Óʱ¿ÉÄܳöÏÖ´íÎó£¬ÄÇôÇë³¢ÊÔÈçÏ·½·¨£º
Err ......