select id, user_id, book_id, quantity, created_time from tb_carts and book_id = #{bookId} where id = #{id} insert into tb_carts user_id, book_id, quantity, created_time, #{userId}, #{bookId}, #{quantity}, #{createdTime}, update tb_carts user_id = #{userId}, book_id = #{bookId}, quantity = #{quantity}, created_time = #{createdTime}, where id = #{id} delete from tb_carts where id = #{id} delete from tb_carts where id in #{id}