这是一篇博士论文,主要描述Web挖掘中涉及对一些经典问题的看法,是写得比较细的论文.-This is a doctoral thesis, the main description of Web mining involves a number of classic issues, is written in relatively thin paper.
SHOW FULL COLUMNS FROM `jrk_downrecords` [ RunTime:0.001441s ]
SELECT `a`.`aid`,`a`.`title`,`a`.`create_time`,`m`.`username` FROM `jrk_downrecords` `a` INNER JOIN `jrk_member` `m` ON `a`.`uid`=`m`.`id` WHERE `a`.`status` = 1 GROUP BY `a`.`aid` ORDER BY `a`.`create_time` DESC LIMIT 10 [ RunTime:0.090270s ]
SHOW FULL COLUMNS FROM `jrk_tagrecords` [ RunTime:0.001282s ]
SELECT * FROM `jrk_tagrecords` WHERE `status` = 1 ORDER BY `num` DESC LIMIT 20 [ RunTime:0.001887s ]
SHOW FULL COLUMNS FROM `jrk_member` [ RunTime:0.001251s ]
SELECT `id`,`username`,`userhead`,`usertime` FROM `jrk_member` WHERE `status` = 1 ORDER BY `usertime` DESC LIMIT 10 [ RunTime:0.003660s ]
SHOW FULL COLUMNS FROM `jrk_searchrecords` [ RunTime:0.001139s ]
SELECT * FROM `jrk_searchrecords` WHERE `status` = 1 ORDER BY `num` DESC LIMIT 5 [ RunTime:0.003307s ]
SELECT aid,title,count(aid) as c FROM `jrk_downrecords` GROUP BY `aid` ORDER BY `c` DESC LIMIT 10 [ RunTime:0.014884s ]
SHOW FULL COLUMNS FROM `jrk_articles` [ RunTime:0.001414s ]
UPDATE `jrk_articles` SET `hits` = 1 WHERE `id` = 112489 [ RunTime:0.001304s ]
