:: (Scope Resolution) (Transact-SQL)

Applies to: SQL Server Azure SQL Managed Instance

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).

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();  

Here's the result set.

/

Operators (Transact-SQL)