Sqr vs application engine

Question

hi all,
I have a question. i knew that application engine and sqr has it's own advantages.
i want to know which is faster. let us say we have to write a program which will have large number of database trips.
please suggest me which one i choose to get the faster results.
Thank you.

Answer 1

@user629988, generally speaking, PL/SQL runs faster than SQR or AE. If you have to create an output file, however, then you are probably better off using an SQR or AppEngine over PL/SQL. Yes, you can create output files with PL/SQL, but it will be easier if you use SQR or AE.
Row by row processing doesn't optimize well. Set based processing has potential to be much more efficient. Perhaps you can collect some of the data for the 20 different SQL's into stage tables, and then run the SQL statements against sets rather than per row?
As far as PL/SQL constructs, etc, it could be as simple as straight SQL that selects from your run control record. I would put the PL/SQL in a package. From AE, you launch PL/SQL using
%Execute(/)
begin;
--call PL/SQL routine
end;
In SQR, you just end statements with two semi-colons ;;
begin;;
--call PL/SQL routine
end;;