>>>CREATE UNIQUE INDEX IX_deptfile_cost_cent_site_no ON deptfile (cost_cent, site_no ) >>>>>>
>>>ALTER TABLE [dbo].[deptfile] ADD CONSTRAINT [IX_deptfile_cost_cent_site_no] UNIQUE NONCLUSTERED >>>( >>> [cost_cent] ASC, >>> [site_no] ASC >>>)WITH (PAD_INDEX = OFF, STATISTICS_NORECOMPUTE = OFF, SORT_IN_TEMPDB = OFF, IGNORE_DUP_KEY = OFF, ONLINE = OFF, ALLOW_ROW_LOCKS = ON, ALLOW_PAGE_LOCKS = ON) ON [PRIMARY] >>>>>>
>CREATE CONSTRAINT IX_deptfile_cost_cent_site_no ON deptfile (cost_cent, site_no ) >This doesn't seem correct. Your second syntax was correct.