在本例中，您将了解如何通过有选择性地从数据库中删除行把旧项目从产品存货清单中删除。

In this example, you learn how to remove old items from a product inventory by selectively removing rows from your database.

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例如，您可能需要在销售产品后或更新产品的价格后，根据可用性更新存货清单中的项目数量。

For example, you might want to update the number of items in your inventory after you make a sale or update a product's price, depending on availability.

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卖方和买方不会有韦德透过吨多重的项目清单只是为了找到一个他们想要的产品。

Sellers and buyers won't have to wade through tons of multiple item listings just to find the one product they want.

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