## 20170223 mac mysql 密碼過時處理 一、好久不在本 mac 上使用 mysql,想起使用的時候 ** 在瀏覽器打開 phpAdmin http://127.0.0.1/phpMyAdmin464/index.php?token=bbd69d2ce46a4ca92e96d066d2a08794 ** 見到一下錯誤提示  #1862 - Your password has expired. To log in you must change it using a client that supports expired passwords. 原來是密碼過時 二、使用 系統偏好設置 裏面的 mysql 啓動 mysql ,無從修改密碼,他只是負責啓動 mysql 服務 三、只好使用 shell 命令行來操做 四、mysql 安裝時都是缺省的,因此,路徑應該在 /usr/local/mysql/bin/mysql 五、找到 mysql 是否存在於該目錄下,完整路徑試試 /usr/local/mysql/bin/mysql -u root - p 應該會出現要求輸入密碼的提示 password: 這就表示正確,exit 先退出 mysql 六、使用別名簡化如下操做,以便之後再次使用 ** 打開終端,編輯一個 vim ./bash_profile ** 加入如下 2 條 alias,保存,退出! alias mysql=/usr/local/mysql/bin/mysql alias mysqladmin=/usr/local/mysql/bin/mysqladmin 七、使剛剛編輯的 ./bash_profile 生效,須要執行如下命令 source ./bash_profile 八、使用簡化命令,打開 mysql 服務 mysql -u root -p 九、試試查詢一下 mysql> show databases; 也是以下錯誤提示! ERROR 1820 (HY000): You must SET PASSWORD before executing this statement 十、修改密碼 mysql> SET PASSWORD = PASSWORD('123456'); Query OK, 0 rows affected (0.00 sec) 十一、再次查詢一下數據庫、狀態、版本號等等 ** 查詢數據庫 mysql> show databases; 返回結果吐下 +--------------------+ | Database | +--------------------+ | information_schema | | bjadmin | | mysql | | performance_schema | | think | | think_blog | | think_blog1111 | | wzh0113 | | wzh011301 | | wzh1111 | +--------------------+ 10 rows in set (0.00 sec) ** 查詢數據庫狀態 mysql> status -------------- /usr/local/mysql/bin/mysql Ver 14.14 Distrib 5.7.5-m15, for osx10.8 (x86_64) using EditLine wrapper Connection id: 90 Current database: Current user: root@localhost SSL: Not in use Current pager: stdout Using outfile: '' Using delimiter: ; Server version: 5.7.5-m15 Protocol version: 10 Connection: Localhost via UNIX socket Server characterset: latin1 Db characterset: latin1 Client characterset: utf8 Conn. characterset: utf8 UNIX socket: /tmp/mysql.sock Uptime: 24 min 37 sec Threads: 1 Questions: 156 Slow queries: 0 Opens: 93 Flush tables: 1 Open tables: 86 Queries per second avg: 0.105 -------------- ** 查詢版本號 mysql> select version(); +-----------+ | version() | +-----------+ | 5.7.5-m15 | +-----------+ 1 row in set (0.06 sec)