How to get managers list

Thank you in advance for any feedback you may provide.

On the adventureworks database provided by MS Office they have on the humanresources.employee a field named organizationnode.  Based on this field I would
like to get a list of all managers only.  Please present me with the code I'm not too familiar with sql.
rbordaAsked:
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rhandelsCommented:
Select * from humanresources.employee
where organizationnode like '%managers%'

Were the humanresources.employee is the name of the table, organizationnode the name of the row and '%managers%' the phrase you are looking for in that row. the % are SQL wildcards.
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ste5anSenior DeveloperCommented:
The OrganizationNode column is a hierarchyid. It's a compact data type to store hierarchy information in form of a path. This can be verifyed by using the ToString() method. btw, this data type is a CLR data type, thus ToString() is known method from classes in the .Net framework:

SELECT  E.BusinessEntityID ,
        E.NationalIDNumber ,
        E.OrganizationNode ,
        E.OrganizationLevel ,
        E.JobTitle ,
        E.OrganizationNode.ToString()
FROM    HumanResources.Employee E;

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So now the question is: How do you define "manager" in conjunction to this hierarchy? Any none leaf? The necessary information is already present in the computed column OrganizationLevel which is OrganizationNode.GetLevel():

SELECT  E.BusinessEntityID ,
        E.NationalIDNumber ,
        E.OrganizationNode ,
        E.OrganizationLevel ,
        E.JobTitle
FROM    HumanResources.Employee E
WHERE   E.OrganizationLevel < ( SELECT  MAX(L.OrganizationLevel)
                                FROM    HumanResources.Employee L
                              );

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Scott PletcherSenior DBACommented:
This certainly sounds like some type of classwork or homework.  If so, we can/should only provide general approaches/ideas, not full code.
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rbordaAuthor Commented:
It returned more than the number of supervisors, but it put me on the right track.  Thank you.
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Microsoft SQL Server

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