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GetRoot (Database Engine)

GetRoot (Database Engine)

Returns the root of the hierarchy tree. GetRoot() is a static method.


-- Transact-SQL syntax
hierarchyid::GetRoot () 

-- CLR syntax
static SqlHierarchyId GetRoot () 

SQL Server return type:hierarchyid

CLR return type:SqlHierarchyId

Used to determine the root node in a hierarchy tree.

A. Transact-SQL example

The following example returns the root of the hierarchy tree:

SELECT OrgNode.ToString() AS Text_OrgNode, *
FROM HumanResources.EmployeeDemo
WHERE OrgNode = hierarchyid::GetRoot()

B. CLR example

The following code snippet calls the GetRoot() method:

SqlHierarchyId.GetRoot()

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