Return And Assigning Values In Functions

Hi ,

I will need some examples in assigning and getting values using SQLServer 2005. For eg. How can I store the value that I retrieved in a variable and return that value ? How can I use a function inside a stored procedure ? Do we have any examples or some simple sample code just to take a look ?

For eg I have written the following function which I called from a stored procedure.
BEGIN
--Declare the return variable here
DECLARE @Rows NUMERIC(10)
DECLARE @RETURN_ENABLED VARCHAR(1)
-- Add the T-SQL statements to compute the return value here

SELECT @Rows = MAX(PROFILE_INDEX) FROM PROFILE_PERMISSION PP
INNER JOIN sys_menu_item ON PP.MENU_ITEM=sys_menu_item.menu_item
WHERE PP.PROFILE_INDEX in (select up.profile_index from user_profile up where up.user_id= @is_user) and
not exists (select up.profile_index from user_profile up where up.user_id= @is_user and up.profile_index=1) and
PP.APPLICATION_CODE = @is_appl AND
PP.MENU_NAME=@menu_name
Group By Profile_INdex

IF @Rows > 0
SELECT @RETURN_ENABLED = 'N'
ELSE
SELECT @RETURN_ENABLED = 'Y';


-- Return the result of the function
RETURN @RETURN_ENABLED;

END

Is it correct ? The variable @ROWS will be assigned with the values that the sql statement will return ?

From the stored procedure I'm calling the function inside a CTE.

;WITH GetHierarchy (item_text ,orden , read_order, item_parent , menu_item , enabled)
AS
(--Anchor.
select tb1.item_text, tb1.orden, tb1.read_order, tb1.item_parent , tb1.menu_item ,
dbo.f_sty_print_menu_per_role_per_app2(@menu_name , @is_user , @is_appl) as enabled
From sys_menu_item as tb1
where tb1.MENU_ITEM not in ('m_window','m_help','m_toolbar') and tb1.item_parent not in ('m_toolbar','m_window','m_help')
And tb1.item_parent= @menu_name
--Members
UNION ALL
select tb2.item_text, tb2.orden, tb2.read_order, tb2.item_parent , tb2.menu_item ,
dbo.f_sty_print_menu_per_role_per_app2(@menu_name , @is_user , @is_appl) as enabled
from sys_menu_item as tb2 , GetHierarchy
where tb2.MENU_ITEM not in ('m_window','m_help','m_toolbar') and tb2.item_parent not in ('m_toolbar','m_window','m_help')
And tb2.item_parent = GetHierarchy.menu_item and tb2.menu_name = @menu_name
)
select Space(5*(orden)) + item_text as menui, orden, read_order, item_parent , menu_item ,enabled
From GetHierarchy

Am I doing it correctly ?

I would appreciated any help you could give me.

Thank you