proc sql;
create table master_table as select a.*, b.*
from dataseta a left join datasetb b
on a.permno = b.permno
where intnx('month',a.date,12,'E')>= b.date
group by a.permno, a.date;
quit;
Hi,
My dataset b contains r_size, size_min, size_max, permno date. This dataset has rows of observation for the month of June. The dataset a dates that ranges for all month. I want to merge the dataset b with dataset a matching permno of both dataset and giving the same row from dataset b to every month of year in dataset a that follows the month of June in dataset b .
For example, as an end output, for permno 92719, r_size should be 0, size_min should be 0 etc. for 31DEC1990 in the merged dataset.
:
I guess you may need to do:
proc sql;
create table master_table as
select
a.*,
b.r_size,
b.size_min,
b.size_max,
b.date as date_b
from
dataseta a left join
datasetb b
on a.permno=b.permno and
year(a.date) = year(b.date);
quit;
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