postgreSQL9.1忘记postgres用户密码怎么办

在网络上找了一篇文章http://www.linuxidc.com/Linux/2010-04/25232.htm，如下：

Ubuntu 9.10下PostgreSQL 8.4忘记密码的解决方法

Ubuntu 9.10下PostgreSQL 8.4忘记密码的解决方法:

1.

编辑pg_hba.conf中的

83 # IPv4 local connections:

84 host    all         all         127.0.0.1/32          trust
[email protected]:/etc/postgresql/8.4/main$ sudo vim pg_hba.conf

[email protected]:/etc/postgresql/8.4/main$ sudo /etc/init.d/postgresql-8.4 restart

* Restarting PostgreSQL 8.4 database server
2.

[email protected]:~$ psql -h 127.0.0.1 -U postgres

psql (8.4.2)

SSL connection (cipher: DHE-RSA-AES256-SHA, bits: 256)

Type “help” for help.

postgres=# ALTER USER postgres WITH PASSWORD ‘mickey’;

ALTER ROLE

postgres=# \q
3.

将pg_hba.conf中的该回

83 # IPv4 local connections:

84 host    all         all         127.0.0.1/32          md5
[email protected]:/etc/postgresql/8.4/main$ sudo vim pg_hba.conf

[email protected]:/etc/postgresql/8.4/main$ sudo /etc/init.d/postgresql-8.4 restart

* Restarting PostgreSQL 8.4 database server                                              [ OK ]

经过测试，也适用windows版本下9.1。

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