CODE EXAMPLE FOR SQL

oracle difference between two dates in seconds

SELECT (END_DT - START_DT) * 60 * 60 * 24 FROM MY_TABLE;   	-- Seconds
SELECT (END_DT - START_DT) * 60 * 24 FROM MY_TABLE;   		-- Minutes
SELECT (END_DT - START_DT) * 24 FROM MY_TABLE;   			-- Hours