INSERT INTO LessonPart ( lessonPartId, lessonId, title, description, background, orderId, status ,isPage ) Values ( #{lessonPartId}, #{lessonId}, #{title}, #{description}, #{background}, #{orderId}, #{status} ,#{isPage} ) UPDATE LessonPart SET lessonPartId = #{lessonPartId}, lessonId = #{lessonId}, title = #{title}, description = #{description}, background = #{background}, orderId = #{orderId}, status = #{status},isPage = #{isPage} where lessonPartId=#{lessonPartId} SELECT lessonPartId , lessonId , title , description , background , orderId , status ,isPage FROM LessonPart WHERE lessonPartId=#{lessonPartId} SELECT nextval('seq_lessonPartId') ; INSERT INTO LessonPart ( lessonPartId, lessonId, title, description, background, orderId, status ,isPage ) Values ( #{item.lessonPartId}, #{item.lessonId}, #{item.title}, #{item.description}, #{item.background}, #{item.orderId}, #{item.status} ,#{item.isPage} ) SELECT lessonPartId , lessonId , title , description , background , orderId , status ,isPage FROM LessonPart WHERE lessonId=#{lessonId} and status = 1 ORDER BY orderId delete from LessonPart where lessonPartId in #{item}