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Sql Server trigger insert values from new row into another table

I have a site using the asp.net membership schema. I'd like to set up a trigger on the aspnet_users table that inserted the user_id and the user_name of the new row into another table.

How do I go about getting the values from the last insert?

I can select by the last date_created but that seems smelly. Is there a better way?

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try this for sql server

CREATE TRIGGER yourNewTrigger ON yourSourcetable
FOR INSERT
AS

INSERT INTO yourDestinationTable
        (col1, col2    , col3, user_id, user_name)
    SELECT
        'a'  , default , null, user_id, user_name
        FROM inserted

go

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