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+-- This script updates the databases structure before migrating the data from
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+-- version 1.8.3 to version 1.8.4
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+-- it is intended as a standalone script, however, because of the multiple
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+-- databases related difficulties, it should be parsed by a PHP script in
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+-- order to connect to and update the right databases.
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+-- There is one line per query, allowing the PHP function file() to read
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+-- all lines separately into an array. The xxMAINxx-type markers are there
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+-- to tell the PHP script which database we're talking about.
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+-- By always using the keyword "TABLE" in the queries, we should be able
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+-- to retrieve and modify the table name from the PHP script if needed, which
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+-- will allow us to deal with the unique-database-type installations
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+--
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+-- This first part is for the main database
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+-- xxMAINxx
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+
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+-- xxSTATSxx
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+
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+-- xxUSERxx
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+
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+-- xxCOURSExx
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