本压缩文档为《Java大学实用教程》（7-121-00959-5 电子工业出版社 2005.3）
的电子教案。-compressed files to the "Java University Practical Guide" (7-121-00959-5 Electronics Industry Press 2005.3) electronic templates.
SHOW FULL COLUMNS FROM `jrk_downrecords` [ RunTime:0.000985s ]
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:0.085407s ]
SHOW FULL COLUMNS FROM `jrk_tagrecords` [ RunTime:0.001048s ]
SELECT * FROM `jrk_tagrecords` WHERE `status` = 1 ORDER BY `num` DESC LIMIT 20 [ RunTime:0.001256s ]
SHOW FULL COLUMNS FROM `jrk_member` [ RunTime:0.001168s ]
SELECT `id`,`username`,`userhead`,`usertime` FROM `jrk_member` WHERE `status` = 1 ORDER BY `usertime` DESC LIMIT 10 [ RunTime:0.003038s ]
SHOW FULL COLUMNS FROM `jrk_searchrecords` [ RunTime:0.000858s ]
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:0.017891s ]
SHOW FULL COLUMNS FROM `jrk_articles` [ RunTime:0.001291s ]
UPDATE `jrk_articles` SET `hits` = 2 WHERE `id` = 43792 [ RunTime:0.013453s ]
