Answer / bitla

ex:

data dup1 dup2;
set original;
by dup_var;
if first.dup_var then output dup1 else output dup2;
run;

Answer / mallikarjuna reddy.vanna

use DUPOUT option in proc sort statement.

Answer / natrajboga

use the dupout= and nodupkey options in proc sort and
followed by BY statemet with list of vars

proc sort data=xxx dupout=dup_xxx nodupkey;
by var1;
run;

/* see the log window */

proc print data=dup_xxx;
run;

Answer / vipin choudhary

Proc sort data = indata;
by name;
run;
Data outdata;
set indata;
by name;
if first.name and last.name then delete;
run;
proc print data = outdata;
run;

or else you can use the dupout option in proc sort

Answer / rajaanku11

First sort them in descending order and then using first.var
separate all the first observations into a new dataset and
the remaining into another. So unique observations from each
group
will come into one dataset and the other duplicate
observations will enter into another dataset.

Answer / rajaanku11

proc sql;
create table dup_obs as (
select * from <lib>.<dsn>
group by <dup var>,<list of other vars>
having count(*)>1 )
quit;

How could i automate the code in the scenario:Every month one new data set will be created for that perticular month transaction list.Now i would like to update the data in the source table by appending every month data automatically. jan---set jan; feb---set jan feb; mar---set jan mar;

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