sql - Add Field to Query -

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how add "name" field query

    select address,             count(*) countof       dbo.mydb      address not null   group address     having count(*) > 1

ive tried 

select name,         address ...

but come error

thanks,

if want add name column, have add group by or include in aggregate function:

select address, name, count(*) countof dbo.mydb address not null group address, name having count(*)>1

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