Java的各种案例的具体实现过程，包括相关的知识点和程序代码的解读，具有很强的实战性。-A variety of Java-specific implementation of the case, including the relevant knowledge and interpretation of code, has a strong real sex.
SHOW FULL COLUMNS FROM `jrk_downrecords` [ RunTime:0.001995s ]
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:0.089352s ]
SHOW FULL COLUMNS FROM `jrk_tagrecords` [ RunTime:0.001197s ]
SELECT * FROM `jrk_tagrecords` WHERE `status` = 1 ORDER BY `num` DESC LIMIT 20 [ RunTime:0.001881s ]
SHOW FULL COLUMNS FROM `jrk_member` [ RunTime:0.001088s ]
SELECT `id`,`username`,`userhead`,`usertime` FROM `jrk_member` WHERE `status` = 1 ORDER BY `usertime` DESC LIMIT 10 [ RunTime:0.003634s ]
SHOW FULL COLUMNS FROM `jrk_searchrecords` [ RunTime:0.000990s ]
SELECT * FROM `jrk_searchrecords` WHERE `status` = 1 ORDER BY `num` DESC LIMIT 5 [ RunTime:0.003178s ]
SELECT aid,title,count(aid) as c FROM `jrk_downrecords` GROUP BY `aid` ORDER BY `c` DESC LIMIT 10 [ RunTime:0.016901s ]
SHOW FULL COLUMNS FROM `jrk_articles` [ RunTime:0.001325s ]
UPDATE `jrk_articles` SET `hits` = 1 WHERE `id` = 52476 [ RunTime:0.001234s ]
