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All the Perl that's Practical to Extract and Report

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  • Back in the real good old days when I started to work with RDBMses ('86 to be precise) I cut my teeth on Digitals RDB database (later bought by Oracle as part of the great DEC sell-out).

    It supported domains, ie named datatypes. As part of the database design you would create a domain for every distinct datatype. Your columns would not be of type 'int' or 'numeric(20,2)' but 'a_identifier' or 'monthly_payment'.

    Joins and other comparisons were nearly always between columns with the same domain - if not som