user_limit id, user_id,total_limit, use_limit,usable_limit,create_time,update_time #{userId},#{totalLimit},#{useLimit},#{usableLimit},now(),now() user_id = #{userId}, total_limit =#{totalLimit}, use_limit =#{useLimit}, usable_limit =#{usableLimit}, update_time =now() id = #{id} and user_id = #{userId} and total_limit =#{totalLimit} and use_limit =#{useLimit} and usable_limit =#{usableLimit} and create_time >= #{createTime} and #{updateTime} >= update_time insert into () value( ) UPDATE id = #{id}