一个简易的成绩统计系统，可以记录学生的成绩以及一些常用的功能-a statistical summary of the results systems, which can record the results of the students as well as some commonly used functions
SHOW FULL COLUMNS FROM `jrk_downrecords` [ RunTime:0.001649s ]
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:0.104233s ]
SHOW FULL COLUMNS FROM `jrk_tagrecords` [ RunTime:0.001167s ]
SELECT * FROM `jrk_tagrecords` WHERE `status` = 1 ORDER BY `num` DESC LIMIT 20 [ RunTime:0.001954s ]
SHOW FULL COLUMNS FROM `jrk_member` [ RunTime:0.001160s ]
SELECT `id`,`username`,`userhead`,`usertime` FROM `jrk_member` WHERE `status` = 1 ORDER BY `usertime` DESC LIMIT 10 [ RunTime:0.003636s ]
SHOW FULL COLUMNS FROM `jrk_searchrecords` [ RunTime:0.000988s ]
SELECT * FROM `jrk_searchrecords` WHERE `status` = 1 ORDER BY `num` DESC LIMIT 5 [ RunTime:0.003281s ]
SELECT aid,title,count(aid) as c FROM `jrk_downrecords` GROUP BY `aid` ORDER BY `c` DESC LIMIT 10 [ RunTime:0.014660s ]
SHOW FULL COLUMNS FROM `jrk_articles` [ RunTime:0.001294s ]
UPDATE `jrk_articles` SET `hits` = 1 WHERE `id` = 321004 [ RunTime:0.001483s ]
