01.
CREATE
FUNCTION
fnGenDocno ()
02.
RETURNS
varchar
(30)
03.
AS
04.
BEGIN
05.
06.
DECLARE
@value
varchar
(30)
07.
DECLARE
@result
varchar
(30)
08.
09.
select
@value =
max
(eid)
from
Employees
10.
11.
select
@result =
substring
(@value,1,5)+
cast
(
substring
(@value,6,11)+1
as
varchar
(30))
12.
RETURN
@result
13.
14.
END