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

½ô¼±ÇóÖú£ºmysql´´½¨Ë÷Òý³öÎÊÌâÁË

´ó¼ÒºÃ£¬ÎÒÔÚ´´½¨Ë÷Òýʱ£¬³öÏÖ´íÎóÌáʾ£¬´úÂëÈçÏ£º

create uique index stu_cou_index on student_info.results (student_id, course_id);
show index from student_info.results;

±£´æÎªindex.sql£¬È»ºóÔËÐУ¬³öÏÖ´íÎó£º
mysql> c:\wamp\www\index.sql
      show warnings disabled.
      show warnings disabled.
      error:
      unknown command '\i'
      ->

²¢ÇÒûÓа취»Øµ½mysql>µÄÌáʾ·û״̬£¬Ö»ÄܹرÕmysqlÔËÐÐ̨£¬ÔÙ´ÓнøÈë¡£¡£¡£
лл¸÷λ´óϺ£¬°ïÎÒ¿´¿´¡£¡£

°ÑÄãµÄ index.sql ÎļþÌù³öÀ´¿´Ò»ÏÂ...



create uique index stu_cou_index on student_info.results (student_id, course_id);
show index from student_info.results;



Ïà¹ØÎÊ´ð£º

jsp±¸·ÝmysqlÖ»ÓпÕÎļþ

ÓÃjsp×ö¶«Î÷¸øÍêÈ«²»¶®mysqlµÄÈËÓ㬿ÉÊDZ¸·ÝʱֻÓпÕÎļþ£¬ÕâÊÇʲôÇé¿ö£¬
×îºÃÓÐÔ´´úÂ룬лл
Æäʵ±¸·ÝµÄ¹ý³ÌÎÒÏë´ó¸ÅÊÇÕâÑùµÄ£º
½«±íAÖеÄÊý¾Ý·Åµ½ArrayListÖУ¬È»ºó½«Õâ¸öArrayListÖеÄÊý¾ÝÔÙ´æµ½±íBÖС£ ......

´óÏÀÃǾÈÃü°¡:MysqlµÄmy.iniÎļþ¸ü¸ÄÊý¾Ý¿â·¾¶ÎÊÌâ

  ÎÒ°²×°ºÃmysqlºó,ĬÈϵÄÊý¾Ý¿â·¾¶ÊÇÔÚCÅÌÏÂ,ÎÒÏë°ÑËü¸Äµ½EÅÌÀï: ÎÒÏȰÑmysql·þÎñÍ£Ö¹,ÔÙÔÚmysql°²×°Ä¿Â¼(Ò²ÊÇÔÚEÅÌ)ÏÂÕÒµ½my.iniÎļþ,¾Í¸ÄÁËÏÂÃæÄÇô¶à:
#Path to the database root
datadir="E ......

MySQL´´½¨´æ´¢¹ý³Ì³ö´í

ÔÚMySQL5.0Öд¬½¢´æ´¢¹ý³Ìͨ²»¹ý£¬Ìáʾ£º
[Err] 1064 - You have an error in your SQL syntax; check the manual that corresponds to your MySQL server version for the right syntax to use near '' ......

Mysql Êý¾Ý¿âɾ³ý²»ÁËÔõô°ì

ÎÒ֮ǰµ¼ÈëµÄÊý¾Ý¿â£¬ÏÖÔÚɾ³ý²»ÁË£¬ÓÃÁËÃüÁîÐк͹¤¾ß¶¼²»ÐУ¬ÖØÆôÒ²²»ÐУ¬ÕâÊÇÎªÊ²Ã´ÄØ£¿
ÄãÊÇÈçºÎɾ³ýµÄ£¿
ÓÐʲôÌáʾ£¿


ÎÊÌâ˵Ã÷Ô½Ïêϸ£¬»Ø´ðÒ²»áԽ׼ȷ£¡²Î¼ûÈçºÎÌáÎÊ¡££¨ÌáÎʵÄÖǻۣ©

......

mysql±¸·ÝÎÊÌâ¡£¼±£¡£¡£¡£¡£¡

¸ßÊÖ£¬ÏÖÔÚÓöµ½Ò»¸ömysql±¸·ÝµÄÎÊÌâ¡£

ÎÒµÄÊý¾Ý¿âÀïÓÐһЩÓÃcreate function½¨Á¢µÄ×Ô¶¨Ò庯Êý¡£µ±ÎÒÓÃmysqldump±¸·Ý¸ÃÊý¾Ý¿âÈ»ºóµ¼Èëµ½ÁíÍâÒ»¸ö·þÎñÆ÷BÉÏ£¬·¢ÏÖ·þÎñÆ÷BÉÏÖ»ÓÐÊý¾Ý£¬¶øÃ»ÓÐÄÇЩ×Ô¶¨ÒåµÄº¯Êý¡£Î ......
© 2009 ej38.com All Rights Reserved. ¹ØÓÚE½¡ÍøÁªÏµÎÒÃÇ | Õ¾µãµØÍ¼ | ¸ÓICP±¸09004571ºÅ