if i thought myself able to pick up on similar but new-to-me technology, i'd say, for example, i've done reporting on db2 and access databases for x nr of years, and so reporting for this other sql db technology would be a logical extension of that... etc.

let them know where your strength(s) are and how you learned new technology in another position.

but to simply say you can do something you've never seen before is a stretch and leads to a short stay at a job, if hired...