Delete table on join - sas

Question

In T-SQL I used to be able to do the following:
delete t1
from table1 t1
join table2 t2 on t1.rowid = t2.rowid and t1.value <> t2.value
I'd like to be able to do the same in SAS.
taking the code above and wrapping in proc sql; and quit; throws a syntax error.
Is below my only option ?
proc sql;
delete from table1 t1
where t1.value <> (select t2.value from table2 t2 where t1.rowid = t2.rowid)
and t1.rowid in (select t2.rowid from table t2);
quit;
Thank you.

Answer 1

So you have probably figured out, that delete is not very efficient.
If you have the disk space, I would recommend just creating a new table based on the inner join (the records you want), drop table1, and rename the results table1.
%let n=1000000;
data table1;
do rowid=1 to &n;
value = rowid**2;
output;
end;
run;
data table2;
do rowid=1 to &n;
value = (mod(rowid,2)=1)*rowid**2;
output;
end;
run;
proc sql noprint;
create table table1_new as
select a.*
from table1 as a
inner join
table2 as b
on a.rowid=b.rowid
and
a.value = b.value;
drop table table1;
quit;
proc datasets lib=work nolist;
change table1_new = table1;
run;
quit;