> Does Firebird have the ability to process multiple statements per query?
> Is there any other technique where the entire data can be sent in
> large batches?

e.g.

EXECUTE BLOCK AS BEGIN
INSERT INTO TABLE1(col1,col2) VALUES(1,2);
INSERT INTO TABLE1(col1,col2) VALUES(3,4);
...
END


or using prepared statement

EXECUTE BLOCK (c11 INTEGER=?, c12 INTEGER=?, c21 INTEGER=?, c22 INTEGER=? ...) AS BEGIN
INSERT INTO TABLE1(col1,col2) VALUES(:c11,:c12);
INSERT INTO TABLE1(col1,col2) VALUES(:c21,:c22);
...
END


Ivan
http://www.volny.cz/iprenosil/interbase/