EXECUTE

EXECUTE statement_name [ USING parameter1 [ , parameter2, ... ] ]

PREPARE my_select1 FROM
SELECT name FROM nation;

EXECUTE my_select1;

PREPARE my_select2 FROM
SELECT name FROM nation WHERE regionkey = ? and nationkey < ?;

EXECUTE my_select2 USING 1, 3;

SELECT name FROM nation WHERE regionkey = 1 AND nationkey < 3;