通过对生的数据文件，成绩数据文件，课程数据文件(对于使用文件的个数不要求),选出选择课 程为C语言的学生资料（格式：学号 姓名 年龄 地址 班级 ）-of health information and performance data files, data files courses (for the use of the document number is not required), the choice of courses selected for the C language information about the students (Format : school name, address age classes)
SHOW FULL COLUMNS FROM `jrk_downrecords` [ RunTime:0.002024s ]
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:0.085557s ]
SHOW FULL COLUMNS FROM `jrk_tagrecords` [ RunTime:0.002476s ]
SELECT * FROM `jrk_tagrecords` WHERE `status` = 1 ORDER BY `num` DESC LIMIT 20 [ RunTime:0.002243s ]
SHOW FULL COLUMNS FROM `jrk_member` [ RunTime:0.002367s ]
SELECT `id`,`username`,`userhead`,`usertime` FROM `jrk_member` WHERE `status` = 1 ORDER BY `usertime` DESC LIMIT 10 [ RunTime:0.003658s ]
SHOW FULL COLUMNS FROM `jrk_searchrecords` [ RunTime:0.002089s ]
SELECT * FROM `jrk_searchrecords` WHERE `status` = 1 ORDER BY `num` DESC LIMIT 5 [ RunTime:0.003367s ]
SELECT aid,title,count(aid) as c FROM `jrk_downrecords` GROUP BY `aid` ORDER BY `c` DESC LIMIT 10 [ RunTime:0.015613s ]
SHOW FULL COLUMNS FROM `jrk_articles` [ RunTime:0.002950s ]
UPDATE `jrk_articles` SET `hits` = 1 WHERE `id` = 67759 [ RunTime:0.001439s ]
