基于隐私保护的数据挖掘是数据库技术重要的一部分，本文是对其发展的概述。-Privacy protection based on data mining is an important part of database technology, this article is an overview of their development.
SHOW FULL COLUMNS FROM `jrk_downrecords` [ RunTime:0.002152s ]
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:0.087037s ]
SHOW FULL COLUMNS FROM `jrk_tagrecords` [ RunTime:0.002584s ]
SELECT * FROM `jrk_tagrecords` WHERE `status` = 1 ORDER BY `num` DESC LIMIT 20 [ RunTime:0.001948s ]
SHOW FULL COLUMNS FROM `jrk_member` [ RunTime:0.002335s ]
SELECT `id`,`username`,`userhead`,`usertime` FROM `jrk_member` WHERE `status` = 1 ORDER BY `usertime` DESC LIMIT 10 [ RunTime:0.003843s ]
SHOW FULL COLUMNS FROM `jrk_searchrecords` [ RunTime:0.002184s ]
SELECT * FROM `jrk_searchrecords` WHERE `status` = 1 ORDER BY `num` DESC LIMIT 5 [ RunTime:0.003331s ]
SELECT aid,title,count(aid) as c FROM `jrk_downrecords` GROUP BY `aid` ORDER BY `c` DESC LIMIT 10 [ RunTime:0.016282s ]
SHOW FULL COLUMNS FROM `jrk_articles` [ RunTime:0.003320s ]
UPDATE `jrk_articles` SET `hits` = 1 WHERE `id` = 163299 [ RunTime:0.001521s ]
