在邮箱中, 我如何改变现有用户为超级用户? 我不想删除现有用户, 原因不尽相同 。
# alter user myuser ...?
在邮箱中, 我如何改变现有用户为超级用户? 我不想删除现有用户, 原因不尽相同 。
# alter user myuser ...?
ALTER USER myuser WITH SUPERUSER;
您可以在"http://www.postagresql.org/docs/scurrent/static/sql-alteruser.html" rel=“noreferr”>ALTER USER的文档 上阅读更多信息。
为了扩大上述内容,并快速参考:
ALTER USER username WITH SUPERUSER;
ALTER USER username WITH NOSUPERUSER;
ALTER USER username CREATEDB;
您也可以使用 CREATEROLE
和 CREATEUSER
来允许用户使用权限,而不使其成为超级用户。
"http://www.postagresql.org/docs/text/static/sql-alteruser.html" rel="noreferrer" > Documentation
$ su - postgres
$ psql
$ du;
for see the user on db
select the user that do you want be superuser and:
$ ALTER USER "user" with superuser;
May be sometimes upgrading to a superuser might not be a good option. So apart from super user there are lot of other options which you can use. Open your terminal and type the following:
$ sudo su - postgres
[sudo] password for user: (type your password here)
$ psql
postgres@user:~$ psql
psql (10.5 (Ubuntu 10.5-1.pgdg18.04+1))
Type "help" for help.
postgres=# ALTER USER my_user WITH option
并列出备选办法清单
SUPERUSER | NOSUPERUSER | CREATEDB | NOCREATEDB | CREATEROLE | NOCREATEROLE |
CREATEUSER | NOCREATEUSER | INHERIT | NOINHERIT | LOGIN | NOLOGIN | REPLICATION|
NOREPLICATION | BYPASSRLS | NOBYPASSRLS | CONNECTION LIMIT connlimit |
[ ENCRYPTED | UNENCRYPTED ] PASSWORD password | VALID UNTIL timestamp
所以在命令行中 它会看起来像
postgres=# ALTER USER my_user WITH LOGIN
或使用加密密码。
postgres=# ALTER USER my_user WITH ENCRYPTED PASSWORD 5d41402abc4b2a76b9719d911017c592 ;
或在特定时间后撤销许可。
postgres=# ALTER USER my_user WITH VALID UNTIL 2019-12-29 19:09:00 ;
运行此命令
alter user myuser with superuser;
如果要查看用户按照命令运行的权限,请查看
du
您可以创建 SUPERUSER
或促进 >USER
, 因此您可以创建一个 SUPERUSER
, 或促进 < USER
, 用于您的情况
$ sudo -u postgres psql -c "ALTER USER myuser WITH SUPERUSER;"
或回滚
$ sudo -u postgres psql -c "ALTER USER myuser WITH NOSUPERUSER;"
以防止在设置密码时出现命令记录, 在密码前面插入空白, 但检查系统是否支持此选项 。 em>
$ sudo -u postgres psql -c "CREATE USER my_user WITH PASSWORD my_pass ;"
$ sudo -u postgres psql -c "CREATE USER my_user WITH SUPERUSER PASSWORD my_pass ;"
alter user username superuser;
如果您因为使用亚马逊红流而达到此目标, 您无法指定 SUPERUSER
。
ALTER USER <username> SUPERUSER;
代之以指定 CREATEUSER
:
ALTER USER <username> CREATEUSER;
显然, SUPERUSER
并不是亚马逊红流集群的可用用户任务。 我对此感到非常困惑。
显示这一点的截图:
登录到后gres 用户的后gres 数据库 。
c postgres postgres
发布 du 命令以检查当前给用户的角色 。
Issue the command to grant superuser: alter user username with superuser;
It is quite easy to switch between making user a superuser or a regular user. First do check the permissions of all the users by using following command.
du
然后通过执行命令使用户用户超级用户
ALTER USER user_name WITH SUPERUSER;
使用跟随命令后反转
ALTER USER user_name WITH NOSUPERUSER;
for further understanding, explore the following tutorial: How to Change a User to Superuser in PostgreSQL
找到更好的命令来改变用户的状态 。
ALTER USER myuser WITH SUPERUSER PASSWORD pgpassword VALID UNTIL 2034-12-2 ;
Ig 到 之前有效 。 您可以使用此选项进行密码旋转和临时访问 。
例如,您可以按照postergres
)登入,而您可以省略可选择的WITH
:
ALTER ROLE john WITH SUPERUSER;
或者:
ALTER USER john WITH SUPERUSER;
此外,您还可以使用户john
成为非用户,具体如下:
ALTER ROLE john WITH NOSUPERUSER;
或者:
ALTER USER john WITH NOSUPERUSER;
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