I have a merge statement which needs to be converted to a proc sql join,
data a.main;
merge main
a.proxy;
by id;
run;
which i wrote it as,
proc sql;
create table a.main as
select * from main a join a.proxy b
on a.id=b.id;
run;
Now the tough part for me is, the data step has gone bit complex with parameters how do i replicate the same in proc sql ?
data a.main;
merge main a.proxy
(drop=name address city pin_code
%if %eval(&ht2. IN XX YY ZZ) %then
%str(orig_name);
);
by id; run;
run;
1- Your merge and join steps are not equivalent. See below:
data T1;
X=1;
data T2;
X=2;
data J1;
merge T1 T2;
by X;
proc sql;
create table J2 as
select *
from T1 join T2
on T1.X=T2.X;
quit;
The SQL step only keeps common keys.
The steps are only equivalent if all key values are common to both tables, and unique
2- Just add the same option in your SQL.
proc sql;
create table a.main as
select * from main a join a.proxy(drop=name address city pin_code %if %eval(&ht2. IN XX YY ZZ) %then %str(orig_name) ) b
on a.id=b.id;
run;
1- Your merge and join steps are not equivalent. See below:
data T1;
X=1;
data T2;
X=2;
data J1;
merge T1 T2;
by X;
proc sql;
create table J2 as
select *
from T1 join T2
on T1.X=T2.X;
quit;
The SQL step only keeps common keys.
The steps are only equivalent if all key values are common to both tables, and unique
2- Just add the same option in your SQL.
proc sql;
create table a.main as
select * from main a join a.proxy(drop=name address city pin_code %if %eval(&ht2. IN XX YY ZZ) %then %str(orig_name) ) b
on a.id=b.id;
run;
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