Bind a column default value to a function in SQL 2005

Question

I have a column containing items that can be sorted by the user:

DOC_ID  DOC_Order DOC_Name
   1       1        aaa
   2       3        bbb
   3       2              


        

Answer 1

The syntax to add a default like that would be

alter table DOC_Order 
add constraint 
df_DOC_Order 
default([dbo].[NEWDOC_Order]())
for DOC_Order

Also, you might want to alter your function to handle when DOC_Order is null

Create FUNCTION [dbo].[NEWDOC_Order] 
(
)
RETURNS int
AS
BEGIN

RETURN (SELECT ISNULL(MAX(DOC_ORDER),0) + 1 FROM DOC_Documents)

END