Return Unique set with “DISTINCT” and multiple other Selected columns

Question

I am creating a view from multiple tables. Each table being included has a column named Contact_ID. I am using MS SQL 2005. I see that I can use DISTINCT to return a unique set

Answer 1

Initially misread the question, you will need to group all the data but if you want to show all the data and there are uniques, you need to use min or max in some cases, if someone has 2 phones...what do you want to show?

Answer 2

WITH    q AS
        (
        SELECT  *,
                ROW_NUMBER() OVER (PARTITION BY dbo.[1_MAIN - Contacts].Contact_ID ORDER BY dbo.[1_MAIN - Contacts].Contact_ID) AS rn
        FROM    dbo.[1_MAIN - Contacts]
        INNER JOIN
                dbo.Referral
        ON      dbo.[1_MAIN - Contacts].Contact_ID = dbo.Referral.Referral_ID
        INNER JOIN
                dbo.prov_training_records
        ON      dbo.[1_MAIN - Contacts].Contact_ID = dbo.prov_training_records.Contact_ID
        LEFT OUTER JOIN
                dbo.Resource_Center
        ON      dbo.[1_MAIN - Contacts].Contact_ID = dbo.Resource_Center.Contact_ID
        FULL OUTER JOIN
                dbo.Providers
        ON      dbo.[1_MAIN - Contacts].Contact_ID = dbo.Providers.Contact_ID
        )
SELECT  *
FROM    q
WHERE   rn = 1