更多"某数据库中有商品表Table_Goods(GoodsName,Good"的相关试题:
[填空题]某数据库中有商品表Table_Goods(GoodsName,GoodsClassID,SaleUnitPrice)和商品分类表Table_GoodsClass(GoodsClassID,GoodsClassName,City),查询单价高于家用电器类的商品平均价格的家用电器类商品:
SELECT GoodsName,SaleUnltPrice FROM
______
ON a.GoodsClassID=b.GoodsClassID
WHERE SaleUnitPrice>(
SELECT______FROM Table_Goods c
JOIN Table_GoodClass d ON ______
WHERE GoodsClassName=‘家用电器’)
AND ______。