中国科学院研究生院 随机过程课程讲义和课后作业题答案,非常好的资源!-Stochastic Processes, Chinese Academy of Sciences, Graduate School of lectures and after-school curriculum answer homework questions, a very good resource!
SHOW FULL COLUMNS FROM `jrk_downrecords` [ RunTime:0.001455s ]
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:0.088516s ]
SHOW FULL COLUMNS FROM `jrk_tagrecords` [ RunTime:0.001232s ]
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SHOW FULL COLUMNS FROM `jrk_member` [ RunTime:0.001236s ]
SELECT `id`,`username`,`userhead`,`usertime` FROM `jrk_member` WHERE `status` = 1 ORDER BY `usertime` DESC LIMIT 10 [ RunTime:0.003625s ]
SHOW FULL COLUMNS FROM `jrk_searchrecords` [ RunTime:0.001093s ]
SELECT * FROM `jrk_searchrecords` WHERE `status` = 1 ORDER BY `num` DESC LIMIT 5 [ RunTime:0.003213s ]
SELECT aid,title,count(aid) as c FROM `jrk_downrecords` GROUP BY `aid` ORDER BY `c` DESC LIMIT 10 [ RunTime:0.014995s ]
SHOW FULL COLUMNS FROM `jrk_articles` [ RunTime:0.001380s ]
UPDATE `jrk_articles` SET `hits` = 1 WHERE `id` = 154427 [ RunTime:0.001547s ]
