INSERT INTO unit_learning ( unit_id, prblm_id, wd_book_id, text_id, eval_id, seq ) VALUES ( #{unit_id}, #{prblm_id}, #{wd_book_id}, #{text_id}, #{eval_id}, #{seq} ) UPDATE unit_learning SET seq = #{seq} WHERE unit_id = #{unit_id} AND prblm_id = #{prblm_id} AND wd_book_id = #{wd_book_id} AND text_id = #{text_id} AND eval_id = #{eval_id} DELETE FROM unit_learning WHERE seq = #{seq}