Sql server 2008 r2 我怎么能这样选择呢

此查询是有效的，但我无法基于此查询创建视图。请帮忙

正如murtaza所说，您可以为此创建一个存储过程，或者如果您想将其用作视图，您可以创建一个表值函数，您可以使用其他视图和联接

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然后创建一个存储过程并在需要时使用。可能是u声明了一个变量，因此它不起作用。我对此不确定。是的，我正在使用MS SQL Server 2008 R2

    Declare @Result as varchar(max)='';
SELECT DISTINCT @Result =  dbo.MaterialTypes.Title + ', '+ @Result
FROM         dbo.TempId LEFT OUTER JOIN
                      dbo.ProductMaterials ON dbo.ProductMaterials.Product = dbo.TempId.Id LEFT OUTER JOIN
                      dbo.MaterialTypes ON dbo.ProductMaterials.MaterialType = dbo.MaterialTypes.Id LEFT OUTER JOIN
                      dbo.Products ON dbo.Products.Id = dbo.TempId.Id
WHERE     (dbo.Products.IsCollection = 1)



SELECT DISTINCT dbo.TempId.Id AS MaterialCollection_id, @Result
FROM         dbo.TempId LEFT OUTER JOIN
                      dbo.ProductMaterials ON dbo.ProductMaterials.Product = dbo.TempId.Id LEFT OUTER JOIN
                      dbo.MaterialTypes ON dbo.ProductMaterials.MaterialType = dbo.MaterialTypes.Id LEFT OUTER JOIN
                      dbo.Products ON dbo.Products.Id = dbo.TempId.Id
WHERE     (dbo.Products.IsCollection = 1)