SQL2005 ＋.net实现的网上选课系统，能够查询每门课的已选人数，可选人数，有学生，老师，管理员-SQL2005+. Net realized online course system, to query each of the selected number of classes, optional number of students, teachers, administrators
SHOW FULL COLUMNS FROM `jrk_downrecords` [ RunTime:0.001184s ]
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:0.080942s ]
SHOW FULL COLUMNS FROM `jrk_tagrecords` [ RunTime:0.005037s ]
SELECT * FROM `jrk_tagrecords` WHERE `status` = 1 ORDER BY `num` DESC LIMIT 20 [ RunTime:0.002120s ]
SHOW FULL COLUMNS FROM `jrk_member` [ RunTime:0.001082s ]
SELECT `id`,`username`,`userhead`,`usertime` FROM `jrk_member` WHERE `status` = 1 ORDER BY `usertime` DESC LIMIT 10 [ RunTime:0.003488s ]
SHOW FULL COLUMNS FROM `jrk_searchrecords` [ RunTime:0.001087s ]
SELECT * FROM `jrk_searchrecords` WHERE `status` = 1 ORDER BY `num` DESC LIMIT 5 [ RunTime:0.005248s ]
SELECT aid,title,count(aid) as c FROM `jrk_downrecords` GROUP BY `aid` ORDER BY `c` DESC LIMIT 10 [ RunTime:0.023678s ]
SHOW FULL COLUMNS FROM `jrk_articles` [ RunTime:0.001168s ]
UPDATE `jrk_articles` SET `hits` = 2 WHERE `id` = 170457 [ RunTime:0.028319s ]
