---
title: ":: (Scope Resolution) (Transact-SQL) | Microsoft Docs"
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ms.date: "03/06/2017"
ms.prod: sql
ms.prod_service: "sql-database"
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ms.technology: t-sql
ms.topic: "language-reference"
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  - "TSQL"
ms.assetid: 764d8f91-957b-4037-997b-a9b6b533c504
author: rothja
ms.author: jroth
---

# :: (Scope Resolution) (Transact-SQL)
[!INCLUDE[tsql-appliesto-ss2012-xxxx-xxxx-xxx_md](../../includes/tsql-appliesto-ss2012-xxxx-xxxx-xxx-md.md)]

  The scope resolution operator **::** provides access to static members of a compound data type. A compound data type is one that contains multiple simple data types and methods. Compound data types include the built-in CLR types and custom SQLCLR User-Defined Types (UDTs).  
  
## Examples  
 The following example shows how to use the scope resolution operator to access the `GetRoot()` member of the `hierarchyid` type.  
  
```  
DECLARE @hid hierarchyid;  
SELECT @hid = hierarchyid::GetRoot();  
PRINT @hid.ToString();  
```  
  
 [!INCLUDE[ssResult](../../includes/ssresult-md.md)]  
  
 `/`  
  
## See Also  
 [Operators (Transact-SQL)](../../t-sql/language-elements/operators-transact-sql.md)