select id, title, information, lecturer,(select name from by_lecturer where lecturer=by_lecturer.id) as lecturername, videourl,filetype, type, classtype, createuserid, createtime, (select avg(score) from by_train_video_score where by_train_video_score.videoid=by_train_video.id) avgscore from by_train_video and title like concat('%', #{title}, '%') and information = #{information} and lecturer = #{lecturer} and videourl = #{videourl} and filetype = #{filetype} and type like concat('', #{type}, '%') and classtype = #{classtype} and createuserid = #{createuserid} and createtime = #{createtime} where id = #{id} insert into by_train_video title, information, lecturer, videourl, filetype, type, classtype, createuserid, createtime, #{title}, #{information}, #{lecturer}, #{videourl}, #{filetype}, #{type}, #{classtype}, #{createuserid}, #{createtime}, update by_train_video title = #{title}, information = #{information}, lecturer = #{lecturer}, videourl = #{videourl}, filetype = #{filetype}, type = #{type}, classtype = #{classtype}, createuserid = #{createuserid}, createtime = #{createtime}, where id = #{id} delete from by_train_video where id = #{id} delete from by_train_video where id in #{id}