Thus it was written in the epistle of Mike Church,
> Depending on the design of the master data set, watch out for migrating
> secondary keys...

:-).  I am, thanks.

Ted
--
Ted Ashton ([log in to unmask]), Info Sys, Southern Adventist University
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Another advantage of a mathematical statement is that it is so definite that
it might be definitely wrong; and if it is found to be wrong, there is a
plenteous choice of amendments ready in the mathematicians' stock of
formulae. Some verbal statements have not this merit; they are so vague that
they could hardly be wrong, and are correspondingly useless.
                        -- Richardson, Lewis Fry (1881 - 1953)
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         Deep thoughts to be found at http://www.southern.edu/~ashted