数据库老师布置的一个很有趣的作业，自拟命题SQL语句，同学相互抽做，互相评分-database teacher decorated a very interesting process, since the proposed Proposition SQL classmates mutual pumping so, mutual score
SHOW FULL COLUMNS FROM `jrk_downrecords` [ RunTime:0.001366s ]
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:0.092173s ]
SHOW FULL COLUMNS FROM `jrk_tagrecords` [ RunTime:0.001253s ]
SELECT * FROM `jrk_tagrecords` WHERE `status` = 1 ORDER BY `num` DESC LIMIT 20 [ RunTime:0.001932s ]
SHOW FULL COLUMNS FROM `jrk_member` [ RunTime:0.001248s ]
SELECT `id`,`username`,`userhead`,`usertime` FROM `jrk_member` WHERE `status` = 1 ORDER BY `usertime` DESC LIMIT 10 [ RunTime:0.003703s ]
SHOW FULL COLUMNS FROM `jrk_searchrecords` [ RunTime:0.001080s ]
SELECT * FROM `jrk_searchrecords` WHERE `status` = 1 ORDER BY `num` DESC LIMIT 5 [ RunTime:0.003427s ]
SELECT aid,title,count(aid) as c FROM `jrk_downrecords` GROUP BY `aid` ORDER BY `c` DESC LIMIT 10 [ RunTime:0.015016s ]
SHOW FULL COLUMNS FROM `jrk_articles` [ RunTime:0.001360s ]
UPDATE `jrk_articles` SET `hits` = 1 WHERE `id` = 155156 [ RunTime:0.001195s ]
