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Sequentially Number Records


Hi, i have a query which contains two fields: PtId and visitdate. I'd like to create a field that sequentially numbers the visits.

If you're really smart, the second part of my problem involves computing the time from the last (or max) visit to the visit before it. I was thinking if I had the visits numbered it would make this task easier, but if there is another way, that would be even better!
Thanks so much for your help!


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