Hmmm there is a little confusion of nomenclature (my fault). Properly speaking we have one XR (eXperience Replication) session a week. People pair up as a teacher and learner. If there is an odd number of people one "pair" will have one teacher and two learners.

The current Sessions table identifies sessions by DrawDate and contains a "SessionId" which I should rename to PairId. There will be multiple pairs per weekly session.

PairId is unique in the Sessions table but there will be multiple entries (generally two) in the SessPeople table (which I should rename to the Pairs table) for each PairId.

Perl is the programming world's equivalent of English

In reply to Re^6: Avoiding SQL double jeopardy by GrandFather
in thread Avoiding SQL double jeopardy by GrandFather

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