cats/database/update1.sql

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-- create new table to record the database version
CREATE TABLE IF NOT EXISTS `schema_version` (
`id` int(11) PRIMARY KEY auto_increment,
`version` int(11) NOT NULL UNIQUE,
`when` datetime NOT NULL
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) ENGINE=MyISAM DEFAULT CHARSET=latin1 COLLATE=latin1_general_ci;
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-- alter learnprogress by one column
ALTER TABLE `learnprogress` ADD `passed` int(11) NOT NULL DEFAULT '0';
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-- update new column passed with -1
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UPDATE `learnprogress` SET `passed`=-1;
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-- update schema version number
INSERT INTO `schema_version`
(`version`, `when`) VALUES
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('1' , NOW() );