MySQL को तालिका से लापता आईडी मिलती है

SELECT a.id+1 AS start, MIN(b.id) - 1 AS end
    FROM testtable AS a, testtable AS b
    WHERE a.id < b.id
    GROUP BY a.id
    HAVING start < MIN(b.id)

आशा है कि यह लिंक http://www.codediesel.com/mysql में भी मदद करता है /अनुक्रम-अंतराल-में-mysql/