
USEDB dbp_10:postgres:ps LIKE POSTGRES.

USE qyjourn(att1, att2) FROM  dbp_10:postgres:ps MAPTO qyjourn (varchar(80), varchar(80)).
USE qybook(att1, att2) FROM  dbp_10:postgres:ps MAPTO qybook (varchar(80), varchar(80)).

CREATE result (att1, att2) MAPTO result (varchar(80), varchar(80)) KEEP_AFTER_EXECUTION.

