创建索引

Question

我正在索引的工作，我还是有点新。我想根据列CategoryName和ProductName在现有的Northwind视图上创建一个名为“Products by Category”的索引。但是我遇到了一个问题，按类别分类的产品不会让我这样做，因为在那里。名字中有一个空格，但是by会突出显示。无论如何，要让它消失，所以我会停止接收错误。

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

Answer 1

编辑：刚才注意到你正在使用Northwind。您需要更改视图定义以使其可以像下面那样进行索引。

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)