select id, videoid, lecturerid, content, createuserid, createtime from by_train_video_feedback and videoid = #{videoid} and lecturerid = #{lecturerid} and content = #{content} and createuserid = #{createuserid} and createtime = #{createtime} where id = #{id} insert into by_train_video_feedback id, videoid, lecturerid, content, createuserid, createtime, #{id}, #{videoid}, #{lecturerid}, #{content}, #{createuserid}, #{createtime}, update by_train_video_feedback videoid = #{videoid}, lecturerid = #{lecturerid}, content = #{content}, createuserid = #{createuserid}, createtime = #{createtime}, where id = #{id} delete from by_train_video_feedback where id = #{id} delete from by_train_video_feedback where id in #{id}