I just tested this: you must drop all the objects that use the type, drop and recreate teh type, and then create all the objects that used to use it all over again.
otherwise you get an error referencing the first dependancy that SQL finds:
Msg 3732, Level 16, State 1, Line 1
Cannot drop type 'intVarcharForConCat' because it is being referenced by object 'ConcatStuff'. There may be other objects that reference this type.
here's a very simple example:
/* Create a user-defined table type */
CREATE TYPE intVarcharForConCat AS TABLE
(
ID int,
Descriptor VARCHAR(50)
);
--now a function that would do the FOR XML for concatenation.
GO
CREATE FUNCTION ConcatStuff(@MyTable dbo.intVarcharForConCat READONLY)
RETURNS TABLE WITH SCHEMABINDING
AS
RETURN(
SELECT DISTINCT
t.ID,
sq.Columns As Descriptors
FROM @MyTable t
INNER HASH JOIN (SELECT
ID,
Columns = STUFF(
(SELECT
',' + Descriptor
FROM @MyTable sc
WHERE sc.ID = s.ID
FOR XML PATH('')
)
,1,1,'')
FROM @MyTable s
) sq ON t.ID = sq.ID
)
GO
--test just the table type:
Declare @MyTable dbo.intVarcharForConCat
INSERT INTO @MyTable
SELECT OBJECT_ID,name from sys.columns
SELECT * FROM @MyTable
--test the concat function
SELECT * FROM dbo.ConcatStuff(@MyTable)
--try to drop and recreate just the type:
DROP TYPE intVarcharForConCat AS TABLE
CREATE TYPE intVarcharForConCat AS TABLE
(
ID int,
Descriptor VARCHAR(60)--creasing the size, for example
);
--now cleanup
DROP FUNCTION ConcatStuff
DROP TYPE intVarcharForConCat;
Lowell