create table #T
(
id int,
phone varchar(10),
tblName varchar(10)
);
insert into #T
select *, 'tbl1' as tblName
from t1
union
select *, 'tbl2' as tblName
from t2
select * from #T
where phone in (select phone from #T group by phone having COUNT(*) > 1)
order by phone
drop table #T
go
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