use this(assume that your table name is emails): select * from emails as a inner join
( select EmailAddress, min(Id) as id from emails group by EmailAddress ) as b on a.EmailAddress = b.EmailAddress and a.Id = b.id hope
select * from emails as a inner join (select EmailAddress, min(Id) as id from emails group by EmailAddress ) as b on a.EmailAddress = b.EmailAddress and a.Id = b.id hope this help..