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编辑当前文件:/home/pulsehostuk9/public_html/portal.pulsehost.co.uk/resources/sql/upgrade740alpha1.sql
set @query = if ((select count(*) from information_schema.columns where table_schema=database() and table_name='tbldeviceauth' and column_name='role_ids') = 0, 'ALTER TABLE `tbldeviceauth` ADD `role_ids` TEXT COLLATE utf8_unicode_ci NOT NULL AFTER `is_admin`', 'DO 0;'); prepare statement from @query; execute statement; deallocate prepare statement; CREATE TABLE IF NOT EXISTS `tblapi_roles` ( `id` int(10) unsigned NOT NULL AUTO_INCREMENT, `role` varchar(255) COLLATE utf8_unicode_ci NOT NULL DEFAULT '', `description` varchar(255) COLLATE utf8_unicode_ci NOT NULL DEFAULT '', `permissions` text COLLATE utf8_unicode_ci NOT NULL, `created_at` timestamp NOT NULL DEFAULT '0000-00-00 00:00:00', `updated_at` timestamp NOT NULL DEFAULT '0000-00-00 00:00:00', PRIMARY KEY (`id`) ) ENGINE=InnoDB DEFAULT CHARSET=utf8 COLLATE=utf8_unicode_ci;