某数据库中有表Table_Good((GoodsID,GoodsName,SaleUnitPrice)和表Table_GoodsClass(GoodsClassID,GoodsClassName,Sum),对家用电器类商品进行分类显示,如果商品的单价高于3000,则显示‘高档商品’;如果单价在1000-3000,则显示‘中档商品’;如果单价低于1000的显示‘低档商品’。完成下列的SQL语句。
SELECT GoodsName,SaleUnitPrice,Type=CASE
_______
______
______
END
FROM ______
ON _______
WHERE GoodsClassName=‘家用电器’
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答 案:WHEN SaleUnitPrice>3000 THEN‘高档商品’WHEN SaleUnitPrice BETWEEN 1000 AND 3000 THEN‘中档商品’WHEN SaleUnitPrice1000 THEN‘低档商品’Table_Goods a JOIN Table_GoodsClass ba.GoodsID=b.GoodsClassID
WHEN SaleUnitPrice>3000 THEN‘高档商品’WHEN SaleUnitPrice BETWEEN 1000 AND 3000 THEN‘中档商品’WHEN SaleUnitPrice1000 THEN‘低档商品’Table_Goods a JOIN Table_GoodsClass ba.GoodsID=b.GoodsClassID