delete from t_courseware where course_id in #{courseId} AND deleted = 0 select * from t_courseware where course_id = #{courseId} and deleted = 0 select tc.id id,tc.name name,tco.name courseName,tcd.name dirName,tc.file_url from t_courseware tc inner join t_course tco on tc.course_id = tco.id inner join t_course_directory tcd on tco.course_directory_id = tcd.id tc.name LIKE CONCAT( '%',#{params.name}, '%')