Bare in mind that making structural changes to the database
do require you to Backup and Restore after ( I think ) 256
changes. This is a 'problem' that could cause your method to
become a pain.

I have a 'blank' table into which I pump the data, and then
just change the SQL to give me the view I want for the
report and Tee chart. It works well without the structural
change.

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Lester Caine
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L.S.Caine Electronic Services