| フィールド名 | データ型 | 制約 | 主キー | 外部キー | 説明文 |
|---|---|---|---|---|---|
| banners_history_date | timestamp | not null | - | - | banners_history_date |
| banners_clicked | integer | not null default 0 | - | - | banners_clicked |
| banners_shown | integer | not null default 0 | - | - | banners_shown |
| banners_id | integer | not null | - | - | banners_id |
| banners_history_id | serial | ○ | - | banners_history_id |