i have a dataset that looks like
customer_id cellphone
deeee 0897777
deesss 65788
reeesss 7866
(not real values)
I want to check which of the customer_id has the same cellphone value
or
proc sql;
select *
from have
group by cellphone
having count(*) > 1
;
quit;
From the hip:
proc sql;
select
a.customer_id as cust1,
b.customer_id as cust2,
a.cellphone as cell
from have as a, have as b
where a.cellphone = b.cellphone and a.customer_id ne b.customer_id
;
quit;
or
proc sql;
select *
from have
group by cellphone
having count(*) > 1
;
quit;
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