sql-server-2012 - How can I provide an Index Hint to a MS-SQL Server Indexed View?

Question

I have an indexed view FooView.

I've created the following indexes against it:

• CREATE UNIQUE CLUSTERED INDEX IX_Foo1 ON [FooView](SomeId, AnotherId)
• CREATE NONCLUSTERED INDEX IX_Foo2 ON [FooView](SomeId)

Is it possible to use a HINT against IX_Foo2 ? It keeps using IX_Foo1 when I use the WITH (NOEXPAND) hint.

Answer 1

是的，这非常简单

CREATE TABLE dbo.FooTable
  (
     SomeId    INT,
     AnotherId INT,
     Filler    CHAR(8000)
  );

go

CREATE VIEW dbo.FooView
WITH SCHEMABINDING
AS
  SELECT SomeId,
         AnotherId,
         Filler
  FROM   dbo.FooTable

GO

CREATE UNIQUE CLUSTERED INDEX IX_Foo1
  ON dbo.FooView(SomeId, AnotherId)

CREATE NONCLUSTERED INDEX IX_Foo2
  ON dbo.FooView(SomeId)

GO

SELECT SomeId
FROM   dbo.FooView WITH (noexpand) --No hint non clustered index chosen automatically

SELECT *
FROM   dbo.FooView WITH (noexpand) --No hint clustered index chosen automatically

SELECT *
FROM   dbo.FooView WITH (noexpand, INDEX = IX_Foo2) --With hint nonclustered index forced

执行计划

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