×ܽá
17cÊÇÒ»¿î¹¦Ð§Ç¿Ê¢µÄ¹¤¾ß£¬ÕÆÎÕÆä×°Öúͳ£¼û¹ÊÕÏÅŲéÒªÁ죬¿ÉÒÔ×ÊÖúÄú¸ü¸ßЧµØÊ¹ÓÃËü¡£ÎÞÂÛÊǰ²?×°Àú³ÌÖеÄÎÊÌ⣬ÕÕ¾ÉʹÓÃÀú³ÌÖÐÓöµ½µÄÖÖÖÖ¹ÊÕÏ£¬±¾ÎÄÌṩµÄÒªÁìºÍ½¨Òé¶¼¿ÉÒÔΪÄúÌṩ°ï?Öú¡£ÈôÊÇÎÊÌâÈÔÈ»ÎÞ·¨½â¾ö£¬½¨ÒéÁªÏµ17cµÄÊÖÒÕÖ§³ÖÍŶӣ¬»ñµÃרҵµÄÊÖÒÕÖ§³ÖºÍ×ÊÖú¡£
Ï£Íû±¾ÎĶÔÄúÓÐËù×ÊÖú£¬×£ÄúÔÚʹÓÃ17cµÄÀú³ÌÖÐ˳ËìÓä¿ì£¡
°¸ÀýÆÊÎö£ºÏÖʵӦÓÃÖеÄÀÖ³É
ΪÁ˸üÖ±¹ÛµØÕ¹Ê¾17cÔÚÏÖʵӦÓÃÖеÄÀֳɣ¬ÎÒÃÇ¿ÉÒÔÆÊÎöһЩÏêϸµÄÀֳɰ¸Àý¡£ÀýÈ磬һ¼Ò×ÅÃûÆû³µÖÆÔ칫˾ÔÚʹÓÃ17cºó£¬Äܹ»¸ü¸ßЧµØÍê³ÉÖØ´óµÄÆû³µÁ㲿¼þÉè¼Æ£¬Ìá¸ßÁËÉè¼Æ¾«¶ÈºÍÉú²úЧÂÊ¡£ÕâÖÖÀֳɰ¸Àý²»µ«Õ¹Ê¾ÁË17cÔÚÌØ¶¨ÐÐÒµÖеÄ׿Խ±í?ÏÖ£¬Ò²ÎªÆäËûÓû§ÌṩÁËÃû¹óµÄ²Î¿¼¡£
Ïà±È֮ϣ¬µÍ¶ËCAD¹¤¾ßÔÚÕâЩ¸ßÒªÇóµÄÏîÄ¿Öо³£ÌåÏÖ³ö¹¦Ð§È±·¦ºÍÐÔÄܲ»Îȹ̣¬µ¼ÖÂÏîÄ¿½ø¶ÈºÍÖÊÁ¿Êܵ½Ó°Ï죬ÎÞ·¨µÖ´ïÔ¤ÆÚµÄЧ¹û¡£
4Êý¾Ý¿âÐÔÄÜÎÊÌâ
ÈôÊÇ17cϵͳÓëÊý¾Ý¿â¼¯³É£¬Êý¾Ý¿âÐÔÄÜÎÊÌâ¿ÉÄÜ»áÓ°ÏìϵͳÔËÐС£¿ÉÒÔͨ¹ýÒÔϰ취¾ÙÐÐÅŲ飺
Éó²éÊý¾Ý¿âÈÕÖ¾£º¼ì²éÊý¾Ý¿âÈÕÖ¾Îļþ£¬Ñ°ÕÒ¹ýʧºÍÖÒÑÔÐÅÏ¢¡£Ê¹ÓÃÐÔÄÜÆÊÎö¹¤¾ß£ºÈçMySQLµÄEXPLAIN¡¢PostgreSQLµÄEXPLAINANALYZEµÈ£¬ÆÊÎöSQLÅÌÎʵÄÖ´ÐÐÍýÏëºÍÐÔÄÜ¡£ÓÅ»¯Êý¾Ý¿âÉèÖãºÆ¾Ö¤ÆÊÎöЧ¹û£¬µ÷½âÊý¾Ý¿âÉèÖòÎÊý£¬È绺´æ¾Þϸ¡¢ÅþÁ¬ÊýµÈ£¬ÒÔÌá¸ßÐÔÄÜ¡£
ͨ¹ýÒÔÉÏÉîÈëÅŲéÒªÁ죬ÄãÓ¦¸ÃÄܹ»¸üÖÜÈ«µØ½â¾ö17cϵͳÖеIJ»³£?¼ûÎÊÌâ¡£ÈôÊÇÔÚʹÓÃÀú³ÌÖÐÓöµ½¸üÖØ´óµÄÎÊÌ⣬½¨ÒéÁªÏµ×¨ÒµÊÖÒÕÖ§³ÖÍŶӣ¬ÒÔ»ñµÃ½øÒ»²½µÄ×ÊÖú¡£Ï£ÍûÕâÆªÎÄÕÂÄܹ»ÎªÄãÌṩ¸üÖÜÈ«µÄÖ¸µ¼£¬×£ÄãÔÚʹÓÃ17cϵͳʱһÇÐ˳Ë죡
17c.5c-Æð²ÝµÄÒªº¦°ì·¨ÓëÒªµãÆÊÎö¸ßЧ¹¹½¨µÄ½¹µãÂß¼
ÔÚÏÖ´úÉç»á£¬ÎÞÂÛÊÇѧÊõÑо¿¡¢ÆóÒµÔËÓª£¬ÕÕ¾ÉСÎÒ˽¼ÒÉúÑÄ£¬Îı¾Ð´×÷¶¼ÊDz»¿É»òȱµÄÊÖÒÕ¡£¶øÔÚÎı¾Ð´×÷µÄ?Àú³ÌÖУ¬Æð²ÝÊÇÒ»¸öÖÁ¹ØÖ÷ÒªµÄ»·½Ú¡£17c.5c-Æð²ÝÒªÁìͨ¹ýÆäÆæÒìµÄÂß¼ºÍ°ì·¨£¬ÌṩÁËÒ»ÖÖ¸ßЧ¹¹½¨Îı¾µÄÒªÁì¡£±¾ÎĽ«ÏêϸÆÊÎöÕâÒ»ÒªÁìµÄÒªº¦°ì·¨ÓëÒªµã£¬ÒÔÖúÄãÔÚÆð²ÝÀú³ÌÖÐÌá¸ßЧÂÊ£¬È·±£Îı¾?µÄ׼ȷÐÔºÍÍêÕûÐÔ¡£
1ÍøÂçÅþÁ¬ÎÊÌâ
ÈôÊÇϵͳÎÞ·¨Õý³£ÅþÁ¬µ½ÍøÂ磬¿ÉÒÔͨ¹ýÒÔϰ취¾ÙÐÐÅŲ飺
¼ì²éÍøÂçÅþÁ¬£ºÈ·±£?ÅÌËã»úÒÑÅþÁ¬µ½ÍøÂ磬¿ÉÒÔʵÑé»á¼ûÆäËûÍøÕ¾»ò·þÎñ¡£¼ì²é·À»ðǽÉèÖãºÈ·±£·À»ðǽûÓÐ×èÖ¹17cϵͳµÄÍøÂçÅþÁ¬¡£Ê¹ÓÃpingÏÂÁÔÚÖÕ¶Ë»òÏÂÁîÌáÐÑ·ûÖÐÊäÈëping<·þÎñÆ÷IP>¼ì²éÍøÂçÅþÁ¬ÊÇ·ñÕý³£¡£
2¶àÑù»¯ÑµÁ·
²î±ðÀàÐ͵Äд×÷£¨ÈçѧÊõÂÛÎÄ¡¢±¨¸æ¡¢ÎÄÕµȣ©ÐèÒª²î±ðµÄ¼¼ÇɺÍÒªÁ졣ͨ¹ý¶àÑù»¯µÄд×÷ѵÁ·£¬¿ÉÒÔÌá¸ßÄãÔÚ²î±ðд×÷³¡¾°ÖеÄ˳ӦÄÜÁ¦ºÍ±í´ï?ÄÜÁ¦¡£
17c.5c-Æð²ÝÒªÁìÌṩÁËÒ»¸öϵͳ»¯¡¢¸ßЧµÄÎı¾¹¹½¨Â·¾¶¡£Í¨¹ýÃ÷È·Ä¿µÄ?ÓëÊÜÖÚ¡¢ÍøÂçÓëÕûÀí×ÊÁÏ¡¢¹¹½¨µ×¸å¿ò¼Ü¡¢Ñ¡ÔñºÏÊʵÄÓïÑÔÆø¸Å¡¢Öظ´ÐÞ¸ÄÓëУ¶Ô£¬Äã¿ÉÒÔÔÚд×÷Àú³ÌÖÐÌá¸ßЧÂÊ£¬È·±£Îı¾µÄ׼ȷÐÔºÍÍêÕûÐÔ¡£Í¨¹ýʱ¼ä¹ÜÀí¡¢ÒýÓÃÓë²Î¿¼ÎÄÏ×¹ÜÀí¡¢·´ÏìÓëˢС¢ÊÖÒÕ¹¤¾ßÓ븨ÖúÒÔ¼°Ò»Á¬Ñ§Ï°Óëǰ½ø£¬Ä㽫Äܹ»ÔÚд×÷ÖÐһֱǰ½ø?£¬³ÉΪһÃûÔ½·¢¾«²ÊµÄд×÷Õß¡£
ÎÞÂÛÄãÊdzõѧÕßÕÕ¾É×ÊÉîר¼Ò£¬ÕâЩҪÁìºÍ¼¼Çɶ¼½«ÎªÄãÌṩÃû¹óµÄÖ¸µ¼£¬ÖúÄãÔÚÆð²ÝÀú³Ì?ÖÐÈ¡µÃÀֳɡ£
1ÒýÓùæÔò
ÔÚ17c.5c-Æð²ÝÒªÁìÖУ¬ÒýÓúͲο¼ÎÄÏ×ÊÇÖ§³ÖÄã¿´·¨µÄÖ÷ÒªÊֶΡ£ÐèÒª×ñÕÕÌØ¶¨µÄÒýÓùæÔò£¬ÒÔÈ·±£ÒýÓõÄ׼ȷÐԺ͹淶ÐÔ¡£³£¼ûµÄÒýÓÃÃûÌðüÀ¨APA¡¢MLAºÍChicagoµÈ£¬²î±ðµÄѧÊõÁìÓò¿ÉÄÜÓвî±ðµÄÒªÇó¡£È·±£ÒýÓõÄȪԴ¿É¿¿£¬²¢ÇÒÒýÓÃÃûÌÃ׼ȷ£¬¿ÉÒÔÔöÌíÎı¾µÄ¿ÉÐŶȺÍѧÊõ¼ÛÖµ¡£
ÈôÊÇÓû§ÔÚ²Ù×÷ϵͳʱÓöµ½È¨ÏÞÎÊÌ⣬¿ÉÄÜÔµ¹ÊÔÓÉÈçÏ£º
Óû§×éȨÏÞÉèÖùýʧ£º¼ì²é²¢µ÷½âÓû§×éȨÏÞÉèÖã¬È·±£Óû§ÓµÓÐÐëÒªµÄ»á¼ûȨÏÞ¡£ÎļþȨÏÞÉèÖùýʧ£º¼ì²é²¢µ÷½âÎļþºÍĿ¼µÄȨÏÞÉèÖã¬È·±£ÏµÍ³Äܹ»Õý³£»á¼ûËùÐèµÄ×ÊÔ´¡£
ͨ¹ýÒÔÉϰ취ºÍÒªÁ죬ÄãÓ¦¸ÃÄܹ»Ë³Ëì°²?×°17cϵͳ²¢½â¾ö³£¼ûÎÊÌâ¡£ÈôÊÇÔÚʹÓÃÀú³ÌÖÐÓöµ½¸üÖØ´óµÄÎÊÌ⣬½¨ÒéÁªÏµ×¨ÒµÊÖÒÕÖ§³ÖÍŶӣ¬ÒÔ»ñµÃ½øÒ»²½µÄ°ï?Öú¡£Ï£ÍûÕâÆªÎÄÕÂÄܹ»ÎªÄãÌṩÓмÛÖµµÄÖ¸µ¼£¬×£ÄãÔÚʹÓÃ17cϵͳʱһÇÐ˳Ë죡
ÔÚÏÖʵʹÓÃÀú³ÌÖУ¬17cϵͳ¿ÉÄÜ»áÓöµ½Ò»Ð©²»³£¼ûµÄÎÊÌ⣬ÕâʱÐèҪͨ¹ý¸üÉîÈëµÄÅŲéÒªÁìÀ´½â¾ö¡£±¾ÎĽ«½øÒ»²½Ì½ÌÖһЩ²»?³£?¼ûµÄ¹ÊÕϼ°Æä½â¾öÒªÁ죬×ÊÖúÄã¸üÖÜÈ«µØÕÆÎÕ17cϵͳµÄʹÓúÍά»¤¡£
У¶Ô£ºÖ£»ÝÃô(f3J1ePQDlzHhwh44q38w4Ima2E3XrDq)



