通过面向对象的对象-关系映射持久化技术，将一对多以及多对多的数据保存到数据库中并提供查询修改等功能。-Through Object-Oriented Object- Relational Mapping Persistence technology, one-to-many and many-to-many data is saved to the database and to provide features such as query modification.
SHOW FULL COLUMNS FROM `jrk_downrecords` [ RunTime:0.002942s ]
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:0.100092s ]
SHOW FULL COLUMNS FROM `jrk_tagrecords` [ RunTime:0.001526s ]
SELECT * FROM `jrk_tagrecords` WHERE `status` = 1 ORDER BY `num` DESC LIMIT 20 [ RunTime:0.001955s ]
SHOW FULL COLUMNS FROM `jrk_member` [ RunTime:0.001499s ]
SELECT `id`,`username`,`userhead`,`usertime` FROM `jrk_member` WHERE `status` = 1 ORDER BY `usertime` DESC LIMIT 10 [ RunTime:0.003461s ]
SHOW FULL COLUMNS FROM `jrk_searchrecords` [ RunTime:0.000912s ]
SELECT * FROM `jrk_searchrecords` WHERE `status` = 1 ORDER BY `num` DESC LIMIT 5 [ RunTime:0.003927s ]
SELECT aid,title,count(aid) as c FROM `jrk_downrecords` GROUP BY `aid` ORDER BY `c` DESC LIMIT 10 [ RunTime:0.016545s ]
SHOW FULL COLUMNS FROM `jrk_articles` [ RunTime:0.001097s ]
UPDATE `jrk_articles` SET `hits` = 2 WHERE `id` = 309650 [ RunTime:0.015821s ]
