If you want to compare the query results try the following:
(select * from query1 MINUS select * from query2)
UNION ALL
(select * from query2 MINUS select * from query1)
This will result in all rows that are returned by only one of the queries.
If you want to compare the query results try the following:
(select * from query1 MINUS select * from query2)
UNION ALL
(select * from query2 MINUS select * from query1)
This will result in all rows that are returned by only one of the queries.