unique records based on one column

  • I have a query that pulls parent login info and insert into another table.

    I want to select unique records based on uique ParentEmail column.

    Because we use ParentEMail as login name they have to be unique.

    So my select query has below columns:

    select familyID, ParentEmail, Parentpassword, Adusername, Adpassword, firstname, lastname, nameID

    from tblParents

    How can I modify the above query, that if there are duplicated Parent email, I will only pull the first record so this way, all the records will be unique based on ParentEmail column?

    Thanks

  • ;with CTE as

    (select familyID, ParentEmail, Parentpassword, Adusername, Adpassword, firstname, lastname, nameID,

    row_number() over (partition by ParentEmail order by familyID) as Row

    from tblParents)

    select *

    from CTE

    where Row = 1;

    Will that give you what you need?

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  • Yeah, that should give the desired result.

  • Thank you, that's exactly what I want.

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