MySQL創建新用戶以及ERROR 1396 (HY000)問題解決

 登 錄mysql

 mysql -u root -p

創建允許本地 IP訪問localhost的Mysql數據庫時出錯

 create user 'lijing'@'localhost' identified by '147258369';

ERROR 1396 (HY000): Operation CREATE USER failed for 'lijing'@'localhost'

 出錯原因：

Assume the user is there, so drop the user
After deleting the user, there is need to flush the mysql privileges
Now create the user.

以下解決辦法：

創建允許本地 IP訪問localhost的Mysql數據庫：

 drop user 'lijing'@'localhost';

 flush privileges;（刷新系統權限表）

 create user 'lijing'@'localhost' identified by '147258369';

創建允許外網IP訪問數據庫lijing，本命令包含上面的命令，是所有的IP都可以訪問該數據庫

create user 'lijing'@'%' identified by '147258369';258369';

 創建成功后查詢創建的用戶是否成功

 select host,user,authentication_string from mysql.user;

創建一個新的數據庫，並使用show databases命令查看數據庫是否創建OK

 create database lijingdb DEFAULT CHARSET utf8 COLLATE utf8_general_ci;

show databases;