小编Nat*_*Lee的帖子

我想在我的查询中添加一列，该列将指定一行匹配的一个或多个类别。我想拿这个：

    +--------------+---------------+
Row | Product      | Quantity_Sold |
    +--------------+---------------+
1   | Coca-Cola    | 15            |
2   | Cigarettes   | 4             |
3   | Pretzel      | 6             |
4   | Beer         | 25            |
5   | Popcorn      | 10            |
6   | Candy Bar    | 10            |
    +--------------+---------------+

并返回：

    +--------------+---------------+----------------------+
Row | Product      | Quantity_Sold | Category             |
    +--------------+---------------+----------------------+
1   | Coca-Cola    | 15            | Beverages            |
2   | Cigarettes   | 4             | Controlled Substance |
3   | Pretzel      | 6 …