SELECT *,(SELECT COUNT(*) AS think_count FROM `lesson` `count_table` WHERE `status` = 1 AND ( `count_table`.`course_id` =course.id ) ORDER BY `sort`,`id`) AS `lesson_count` FROM `course` WHERE `id` = 833 LIMIT 1 [ RunTime:0.002057s ]
SELECT * FROM `level` WHERE `id` = 5 [ RunTime:0.002109s ]
SELECT `id`,`name`,`type`,`course_id`,`free` FROM `lesson` WHERE `status` = 1 AND `course_id` = 833 ORDER BY `sort`,`id` [ RunTime:0.002081s ]
SELECT * FROM `course` WHERE `cate_id` = 28 LIMIT 6 [ RunTime:0.004709s ]
