请教一个建表的问题：比如cpu表（字段不确定）＋报价表（每天）

+-------------+---------------+
| id          | CPU 类型编号  |
| type        | CPU 类型名    |
+-------------+---------------+
+-------------+---------------+
| id          | CPU 类型编号  |
| datetime    | 报价时间      |
| area        | 报价地区      |
| price       | 价格          |
+-------------+---------------+