运行在JDK下的学生成绩管理系统源码.可以查询数据，添加数据，删除数据，和排序等-running on JDK of student performance management system source code. Data can find, add, delete data, and sequencing, etc.
SHOW FULL COLUMNS FROM `jrk_downrecords` [ RunTime:0.001383s ]
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:0.087072s ]
SHOW FULL COLUMNS FROM `jrk_tagrecords` [ RunTime:0.001019s ]
SELECT * FROM `jrk_tagrecords` WHERE `status` = 1 ORDER BY `num` DESC LIMIT 20 [ RunTime:0.001281s ]
SHOW FULL COLUMNS FROM `jrk_member` [ RunTime:0.001246s ]
SELECT `id`,`username`,`userhead`,`usertime` FROM `jrk_member` WHERE `status` = 1 ORDER BY `usertime` DESC LIMIT 10 [ RunTime:0.003691s ]
SHOW FULL COLUMNS FROM `jrk_searchrecords` [ RunTime:0.000924s ]
SELECT * FROM `jrk_searchrecords` WHERE `status` = 1 ORDER BY `num` DESC LIMIT 5 [ RunTime:0.004776s ]
SELECT aid,title,count(aid) as c FROM `jrk_downrecords` GROUP BY `aid` ORDER BY `c` DESC LIMIT 10 [ RunTime:0.015295s ]
SHOW FULL COLUMNS FROM `jrk_articles` [ RunTime:0.001268s ]
UPDATE `jrk_articles` SET `hits` = 2 WHERE `id` = 282772 [ RunTime:0.015070s ]
