清华大学自动化系ARM培训教材,讲的比较全，各个方面都涉及到了。-Department of Automation, Tsinghua University, ARM training materials, stresses the Comparison of the whole, all aspects involved.
SHOW FULL COLUMNS FROM `jrk_downrecords` [ RunTime:0.001450s ]
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:0.114510s ]
SHOW FULL COLUMNS FROM `jrk_tagrecords` [ RunTime:0.001191s ]
SELECT * FROM `jrk_tagrecords` WHERE `status` = 1 ORDER BY `num` DESC LIMIT 20 [ RunTime:0.001880s ]
SHOW FULL COLUMNS FROM `jrk_member` [ RunTime:0.001219s ]
SELECT `id`,`username`,`userhead`,`usertime` FROM `jrk_member` WHERE `status` = 1 ORDER BY `usertime` DESC LIMIT 10 [ RunTime:0.003612s ]
SHOW FULL COLUMNS FROM `jrk_searchrecords` [ RunTime:0.001074s ]
SELECT * FROM `jrk_searchrecords` WHERE `status` = 1 ORDER BY `num` DESC LIMIT 5 [ RunTime:0.003174s ]
SELECT aid,title,count(aid) as c FROM `jrk_downrecords` GROUP BY `aid` ORDER BY `c` DESC LIMIT 10 [ RunTime:0.014377s ]
SHOW FULL COLUMNS FROM `jrk_articles` [ RunTime:0.001244s ]
UPDATE `jrk_articles` SET `hits` = 1 WHERE `id` = 102454 [ RunTime:0.001524s ]
