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    <p>Here is a generic example. You can copy, paste and run it and it will show you the output. If this works you should be able to modify the table and column values to get it to work for your situation.</p> <pre><code>If Object_ID('dbo.Services') Is Not Null Drop Table [dbo].[Services]; Create Table [dbo].[Services] (ServiceID Int Identity(1,1) NOT NULL, ParenServiceID Int NULL, ServiceDescription Nvarchar(250) NULL); Insert [dbo].[Services] Select null, 'Automobiles' Union All Select 1, 'Germany' Union All Select 2, 'BMW' Union All Select 3, '4 Wheel Drive' Union All Select 1, 'Italy' Union All Select 5, 'FIAT' Union All Select 4, 'X3' Union All Select 6, 'Front Wheel Drive' Union All Select 8, 'Punto'; With recurCTE As ( Select h.ServiceID, h2.ParenServiceID As nextParent, Convert(Varchar(max),Isnull(h2.ServiceDescription + ' &gt; ','') + h.ServiceDescription) As Hierarchy From [dbo].[Services] h Left Join [dbo].[Services] h2 On h.ParenServiceID = h2.ServiceID Union All Select rc.ServiceID, h.ParenServiceID As nextParent, Convert(Varchar(max),Isnull(h.ServiceDescription + ' &gt; ','') + rc.Hierarchy) As Hierarchy From recurCTE rc Join [dbo].[Services] h On rc.nextParent = h.ServiceID ), orderedResults As ( Select ServiceID, Hierarchy From (Select Row_Number() Over (Partition By ServiceID Order By Len(Hierarchy) Desc) As lenPriID, ServiceID, Hierarchy From recurCTE) As n Where lenPriID = 1 ) Select h.*, o.Hierarchy From orderedResults o Join [dbo].[Services] h On o.ServiceID = h.ServiceID Where ServiceDescription In ('X3','Punto'); </code></pre>
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    1. POShow a unary relationship hierarchy in one field in MS SQL
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    1. COThanks. Your example seems to assume that I know what children parents will be entered. Unfortunately I wouldn't know what data will be entered, nor would I know the number of levels.
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    2. CONo, it doesn't, it assumes the relationship between children and parents. I used the naming convention to make it obvious when looking at the results, but you can change them to whatever you want. The query recursively identifies the path structure for all values in the table. There could be 3 levels or 100 levels.
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    3. COOK, sorry for the misunderstanding then. It is clear that I have no idea what you are suggesting and therefore cannot implement it for my application (because I don't know how it works). I'm no SQL expert. Is it possible to have a function and feed it a "ServiceID" value and it returns a "Path" value in the for of an NVARCHAR(500)? I refer to the latest update where I posted the structure of the table.
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