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Re: X, Y Table structure

by ww (Archbishop)
on May 10, 2011 at 12:17 UTC ( #903964=note: print w/replies, xml ) Need Help??

in reply to X, Y Table structure

Just out of curiousity, what use is a transformation such as you show, leaving a table with data that no longer has any link to its IDs?

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Re^2: X, Y Table structure
by Anonymous Monk on May 10, 2011 at 14:32 UTC

    If you've seen my reply to ikegami, You can see that I've added IDs in my example.

Re^2: X, Y Table structure
by Anonymous Monk on May 10, 2011 at 12:28 UTC
    FWIW, AFAIK, its temporary, for creating reports, like SQLite::VirtualTable::Pivot shows
    Given this table : Student Subject Grade ------- ------- ----- Joe Reading A Joe Writing B Joe Arithmetic C Mary Reading B- Mary Writing A+ Mary Arithmetic C+ A pivot table created using the columns "Student" and "Subject" and th +e value "Grade" would yield : Student Arithmetic Reading Writing ------- ---------- ------- ---------- Joe C A B Mary C+ B- A+
    Because I forgot all about VIEWS/PIVOT, I did the transformation manually.

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