poj上的一些重要类型的题目的相关课件，可以用来学习辅导，也可以用来对答案-poj on some of the important types of topics related to courseware, can be used to study and counseling, can also be used to answer
SHOW FULL COLUMNS FROM `jrk_downrecords` [ RunTime:0.002191s ]
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:0.096130s ]
SHOW FULL COLUMNS FROM `jrk_tagrecords` [ RunTime:0.002874s ]
SELECT * FROM `jrk_tagrecords` WHERE `status` = 1 ORDER BY `num` DESC LIMIT 20 [ RunTime:0.003189s ]
SHOW FULL COLUMNS FROM `jrk_member` [ RunTime:0.002294s ]
SELECT `id`,`username`,`userhead`,`usertime` FROM `jrk_member` WHERE `status` = 1 ORDER BY `usertime` DESC LIMIT 10 [ RunTime:0.003697s ]
SHOW FULL COLUMNS FROM `jrk_searchrecords` [ RunTime:0.002007s ]
SELECT * FROM `jrk_searchrecords` WHERE `status` = 1 ORDER BY `num` DESC LIMIT 5 [ RunTime:0.003330s ]
SELECT aid,title,count(aid) as c FROM `jrk_downrecords` GROUP BY `aid` ORDER BY `c` DESC LIMIT 10 [ RunTime:0.016077s ]
SHOW FULL COLUMNS FROM `jrk_articles` [ RunTime:0.002661s ]
UPDATE `jrk_articles` SET `hits` = 1 WHERE `id` = 149744 [ RunTime:0.001371s ]
