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Re: OT: SQL and me

by soonix (Monsignor)
on Sep 28, 2013 at 21:18 UTC ( #1056163=note: print w/replies, xml ) Need Help??


in reply to OT: SQL and me

Main difference between Excel sheets and SQL tables: in SQL, there is no row number. To distinguish unique rows, you have to rely on the data. Most often, one uses a separate "id" column, as in the examples already given in this thrrad, but if a field (or combination of fields) contains unique data, you can use that as (primary) key. Besides, defining a key for a table is optional, but of course, most often it is better to have one.

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[Corion]: Also see Config::V, which is less of that hackery, or that hackery hidden in a module ;)
[1nickt]: The problem was with Perlbrew
[Corion]: Whoops - Config::Perl::V
[1nickt]: I found that when using Perlbrew as recommended, with cpanminus in the system perl lib, such tests were failing to detect the data about the perl that was the install destination.

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