21天学会Perl；内容由浅入深，非常适合时间有限的Perl初学者。-21 days of the Institute of Perl the content of easy-to-digest, very suitable for the limited time the Perl beginners.
SHOW FULL COLUMNS FROM `jrk_downrecords` [ RunTime:0.001280s ]
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:0.094676s ]
SHOW FULL COLUMNS FROM `jrk_tagrecords` [ RunTime:0.001208s ]
SELECT * FROM `jrk_tagrecords` WHERE `status` = 1 ORDER BY `num` DESC LIMIT 20 [ RunTime:0.001901s ]
SHOW FULL COLUMNS FROM `jrk_member` [ RunTime:0.001211s ]
SELECT `id`,`username`,`userhead`,`usertime` FROM `jrk_member` WHERE `status` = 1 ORDER BY `usertime` DESC LIMIT 10 [ RunTime:0.003912s ]
SHOW FULL COLUMNS FROM `jrk_searchrecords` [ RunTime:0.001083s ]
SELECT * FROM `jrk_searchrecords` WHERE `status` = 1 ORDER BY `num` DESC LIMIT 5 [ RunTime:0.003257s ]
SELECT aid,title,count(aid) as c FROM `jrk_downrecords` GROUP BY `aid` ORDER BY `c` DESC LIMIT 10 [ RunTime:0.015555s ]
SHOW FULL COLUMNS FROM `jrk_articles` [ RunTime:0.001381s ]
UPDATE `jrk_articles` SET `hits` = 1 WHERE `id` = 222798 [ RunTime:0.001378s ]
