解决mysql - 1577 问题

背景：通过navicat连接mysql使用events时报如下错误

登录mysql查询event

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mysql> use zhk4; Database changed mysql> show events; ERROR 1577 (HY000): Cannot proceed because system tables used by Event Scheduler were found damaged at server start mysql> select  *from information_schema.events; ERROR 1577 (HY000): Cannot proceed because system tables used by Event Scheduler were found damaged at server start mysql> show variables like 'event_scheduler'; +-----------------+----------+ | Variable_name   | Value    | +-----------------+----------+ | event_scheduler | DISABLED | +-----------------+----------+ 1 row in set (0.00 sec)   mysql> select * from mysql.event; Empty set (0.00 sec)

百度了一下看大部份解决方式为执行upgrade命令，执行过后重启并没有效果

采取如下解决方式成功解决：

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use mysql; DROP TABLE IF EXISTS `event`; CREATE TABLE `event` (   `db` char(64) CHARACTER SET utf8 COLLATE utf8_bin NOT NULL DEFAULT '',   `name` char(64) NOT NULL DEFAULT '',   `body` longblob NOT NULL,   `definer` char(77) CHARACTER SET utf8 COLLATE utf8_bin NOT NULL DEFAULT '',   `execute_at` datetime DEFAULT NULL,   `interval_value` int(11) DEFAULT NULL,   `interval_field` enum('YEAR','QUARTER','MONTH','DAY','HOUR','MINUTE','WEEK','SECOND','MICROSECOND','YEAR_MONTH','DAY_HOUR','DAY_MINUTE','DAY_SECOND','HOUR_MINUTE','HOUR_SECOND','MINUTE_SECOND','DAY_MICROSECOND','HOUR_MICROSECOND','MINUTE_MICROSECOND','SECOND_MICROSECOND') DEFAULT NULL,   `created` timestamp NOT NULL DEFAULT CURRENT_TIMESTAMP ON UPDATE CURRENT_TIMESTAMP,   `modified` timestamp NOT NULL DEFAULT '0000-00-00 00:00:00',   `last_executed` datetime DEFAULT NULL,   `starts` datetime DEFAULT NULL,   `ends` datetime DEFAULT NULL,   `status` enum('ENABLED','DISABLED','SLAVESIDE_DISABLED') NOT NULL DEFAULT 'ENABLED',   `on_completion` enum('DROP','PRESERVE') NOT NULL DEFAULT 'DROP',   `sql_mode` set('REAL_AS_FLOAT','PIPES_AS_CONCAT','ANSI_QUOTES','IGNORE_SPACE','NOT_USED','ONLY_FULL_GROUP_BY','NO_UNSIGNED_SUBTRACTION','NO_DIR_IN_CREATE','POSTGRESQL','ORACLE','MSSQL','DB2','MAXDB','NO_KEY_OPTIONS','NO_TABLE_OPTIONS','NO_FIELD_OPTIONS','MYSQL323','MYSQL40','ANSI','NO_AUTO_VALUE_ON_ZERO','NO_BACKSLASH_ESCAPES','STRICT_TRANS_TABLES','STRICT_ALL_TABLES','NO_ZERO_IN_DATE','NO_ZERO_DATE','INVALID_DATES','ERROR_FOR_DIVISION_BY_ZERO','TRADITIONAL','NO_AUTO_CREATE_USER','HIGH_NOT_PRECEDENCE','NO_ENGINE_SUBSTITUTION','PAD_CHAR_TO_FULL_LENGTH') NOT NULL DEFAULT '',   `comment` char(64) CHARACTER SET utf8 COLLATE utf8_bin NOT NULL DEFAULT '',   `originator` int(10) unsigned NOT NULL,   `time_zone` char(64) CHARACTER SET latin1 NOT NULL DEFAULT 'SYSTEM',   `character_set_client` char(32) CHARACTER SET utf8 COLLATE utf8_bin DEFAULT NULL,   `collation_connection` char(32) CHARACTER SET utf8 COLLATE utf8_bin DEFAULT NULL,   `db_collation` char(32) CHARACTER SET utf8 COLLATE utf8_bin DEFAULT NULL,   `body_utf8` longblob,   PRIMARY KEY (`db`,`name`) ) ENGINE=MyISAM DEFAULT CHARSET=utf8 COMMENT='Events';

　　执行过后重启解决问题。