Mysql ERROR 1396 (HY000) 錯誤的解決辦法

標籤：mysql 1396

建立使用者的時候報告這個錯誤：

ERROR 1396 (HY000): Operation CREATE USER failed for ‘abc‘@‘localhost‘

原因是mysql中已經有了這個使用者，從mysql.user中直接刪除delete，然後重新整理許可權FLUSH PRIVILEGES，再建使用者就不會有這個問題了。

如果是drop user 的話，mysql內部會自動重新整理一下，那麼再建也不會有這問題了。

舉例說明1——delete刪除：

mysql> create user ‘abc‘@‘localhost‘;

Query OK, 0 rows affected (0.00 sec)

mysql> select user,host from user;

+------+-----------+

| user | host |

+------+-----------+

| root | 127.0.0.1 |

| abc | localhost |

| root | localhost |

+------+-----------+

3 rows in set (0.00 sec)

mysql> delete from user where user=‘abc‘;

Query OK, 1 row affected (0.00 sec)

mysql> select user,host from user;

+------+-----------+

| user | host |

+------+-----------+

| root | 127.0.0.1 |

| root | localhost |

+------+-----------+

2 rows in set (0.00 sec)

再次建立同名使用者，報錯如下：

mysql> create user ‘abc‘@‘localhost‘;

ERROR 1396 (HY000): Operation CREATE USER failed for ‘abc‘@‘localhost‘

這裡要重新整理許可權，重新整理之後就可以建立了；

mysql> flush privileges;

Query OK, 0 rows affected (0.00 sec)

mysql> create user ‘abc‘@‘localhost‘;

Query OK, 0 rows affected (0.00 sec)

mysql> select user,host from user;

+------+-----------+

| user | host |

+------+-----------+

| root | 127.0.0.1 |

| abc | localhost |

| root | localhost |

+------+-----------+

3 rows in set (0.00 sec)

舉例說明2——drop 刪除，可以直接建立：

mysql> drop user ‘abc‘@‘localhost‘;

Query OK, 0 rows affected (0.00 sec)

mysql> select user,host from user;

+------+-----------+

| user | host |

+------+-----------+

| root | 127.0.0.1 |

| root | localhost |

+------+-----------+

2 rows in set (0.00 sec)

mysql> create user ‘abc‘@‘loaclhost‘;

Query OK, 0 rows affected (0.00 sec)

本文出自 “模範生的學習部落格” 部落格，請務必保留此出處http://mofansheng.blog.51cto.com/8792265/1980514

Mysql ERROR 1396 (HY000) 錯誤的解決辦法