I have a primary key (column name is emp_id) in employee table. Also,
I would like to make a combination of other two columns is unique.
(combination of officecode field and claimno field must be unique).
how can I implement this uniquess in ms sql 2000? thank you.

On 17 Oct 2007 13:41:28 -0700, TGEAR wrote:

Hi TGEAR,

CREATE TABLE Demo
(PrimaryKeyColumn int NOT NULL
,HalfOfOtherKeyColumn int NOT NULL
,OtherHalfOfOtherKey int NOT NULL
,SomeOhterKeyForFun int NOT NULL
,CONSTRAINT pk_Demo PRIMARY KEY (PrimaryKeyColumn)
,CONSTRAINT uq_Demo UNIQUE (HalfOfOtherKeyColumn, OtherHalfOfOtherKey)
);

--
Hugo Kornelis, SQL Server MVP
My SQL Server blog: http://sqlblog.com/blogs/hugo_kornelis

TGEAR wrote:

alter table employee
add constraint officecode_claimno
unique (officecode, claimno)