Get correlative types by type

set ANSI_NULLS ON
set QUOTED_IDENTIFIER ON
go

create PROCEDURE [dbo].[Oud_FindPlanSonTypesIDS]
(
    @TypeID uniqueidentifier
)
AS
BEGIN
    WITH SUB_TABLE ( FTypeID , FParentID , FName)
    AS
    (
        SELECT
            FTypeID ,
            FParentID ,
            FName
        FROM O_TeachingPlanTypes
        WHERE FTypeID = @TypeID
       
        UNION ALL

        SELECT
            PRIOR_TAB.FTypeID ,
            PRIOR_TAB.FParentID ,
            PRIOR_TAB.FName
        FROM
        (
            SELECT
                FTypeID ,
                FParentID ,
                FName
            FROM O_TeachingPlanTypes
        )
        PRIOR_TAB ,
        SUB_TABLE
        --WHERE SUB_TABLE.FParentID = PRIOR_TAB.FTypeID (Get all parentTypes by current type)
           WHERE SUB_TABLE.FTypeID = PRIOR_TAB.FParentID --(Get all sonTypes by current type)
    )
    SELECT * FROM SUB_TABLE
END