Apart from anything else there is one very good reason for not using live
data - personal or otherwise - for testing.
In order to test properly you need to know the values of the inputs to be
able to predict and verify the outputs. I would suggest that it would be a
very small live database where all the values were known. To use a database
of unknown data for testing would be the equivalent of using a number of
large rocks of unknown weight to test the strength of a bridge.
Regards,
Graham
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