創建索引

Question

我正在索引的工作，我還是有點新。我想根據列CategoryName和ProductName在現有的Northwind視圖上創建一個名爲「Products by Category」的索引。但是我遇到了一個問題，按類別分類的產品不會讓我這樣做，因爲在那裏。名字中有一個空格，但是by會突出顯示。無論如何，要讓它消失，所以我會停止接收錯誤。

CREATE INDEX IDX_categoryproducts 
ON dbo.Products by catergory (CategoryName,ProductName) 

Answer 1

編輯：剛纔注意到你正在使用Northwind。您需要更改視圖定義以使其可以像下面那樣進行索引。

ALTER VIEW [dbo].[Products by Category] 
WITH SCHEMABINDING 
AS 
SELECT Categories.CategoryID, 
     Categories.CategoryName, 
     Products.ProductID, 
     Products.ProductName, 
     Products.QuantityPerUnit, 
     Products.UnitsInStock, 
     Products.Discontinued 
FROM dbo.Categories INNER JOIN dbo.Products ON Categories.CategoryID = Products.CategoryID 
WHERE Products.Discontinued <> 1 

GO 

CREATE UNIQUE CLUSTERED INDEX ix ON [dbo].[Products by Category] (CategoryID, ProductID) 

CREATE NONCLUSTERED INDEX IDX_categoryproducts ON dbo.[Products by Category] (CategoryName,ProductName)