I can't connect on postgresql.
when i go on pgadmin>server>postgresql, it asked me "please enter the password for the user 'postgres' to connect the server?
I have windows 10 and postgresql 14.
But I don't have this password.
What can I do?
The following worked for me.
Change METHOD of all rows in your pg_hba.conf file from scram-sha-256 to trust (C:\Program Files\PostgreSQL\14\data\pg_hba.conf). This will disable password for your DB.
Click on any database in postgresql to use Query Tool.
In Query Tool type ALTER USER postgres WITH PASSWORD 'User_password';
postgres is default username, execute it.
This way you can set up a password for your DB, after that go back to the first step and change it back from trust to scram-sha-256.
I just installed PostgreSQL 13 on Windows 11. When I run the command psql by default it uses the user aaron, the name of my Windows user account. However, it asks me for a password. I have tried all passwords associated with my Windows account as well as the default password I set for the user postgres, none of which worked. I was able to log in with psql -U postgres, and I ran the command \du, and there was only one role in the list, postgres. Later I created the role aaron without specifying a password, but it still asks for a password.
So, did the user aaron exist initially or not? If not, then how was it the default user when I ran the psql command? What is the password for this user?
So, did the user aaron exist initially or not
No, it did not. The only user that is created when installing Postgres (or more precisely: when running initdb) is postgres.
If not, then how was it the default user when I ran the psql command
Quote from the manual
The default user name is your operating-system user name, as is the default database name
psql simply uses the operating system user as the default username to connect to the server. It knows nothing about the database user(s) until it tries to connect with a specific username and potentially password.
You can set a different default through the (Windows) environment variable PGUSER
Later I created the role aaron without specifying a password, but it still asks for a password.
Whether or not a password is required is controlled through pg_hba.conf
When you run psql command and don't provide a username it considers (that the current system user which in your case is aaron) is the user you want to use to login and hence you see a user which really don't exists.
Now regarding the password you might want to check a file generally named as pg_hba.conf which hold the essentials of who can connect (IPs) what username can he have and should that user be asked for password.
Now generally you will find answers saying that find this file and write down trust everywhere (which basically means if some specific user from a specific IP access this database of replication then don't ask for a password and let him enter), which you should not do until and unless you are utterly sure the postgresql server is just just local and has no real-time purpose.
So concluding you want to create a user with some encrypted password and then provide necessary privilege.
P.S: I have tried all these on a linux machine, but the server configurations are more or less same.
It's worth pointing out that PostgreSQL has it's own users and permissions independent of the OS. Some installers will automatically create a postgres OS user. I'm not sure what Windows does.
It seems that PostgreSQL can do Windows authentication. See this question for details on how to configure that.
As #a_horse_with_no_name has said, connection configuration is controlled by pg_hba.conf
PostgreSQL tries not to leak information about its users, so the failed-authentication attempt is not given much information about why it failed.
If you look in the server's log file, rather than the clients, you should first see messages about 'aaron' failing to authenticate because the user does not existing, and then (after you create it) about it failing to authenticate because it has no password assigned.
When you created the user, you should have assigned it a password if you wanted to use a password. Or as a superuser in psql, create it without a password and then assign one with \password aaron That way the password won't be visible on the screen, or in the log files.
To give a concise, direct answer:
right click on Windows icon and click “System”.
scroll down to “Advanced System Settings”.
click Environment Variables.
in “System variables”, click “New”.
Set Variable Name to PGUSER and Variable Value to postgres.
Or, in cmd: set PGUSER=postgres, which also sets it globally.
go to "Services" (in Task Manager), and restart the "postgresql-X64" service.
When I have create a DB using PGAdmin it creates the db under administrator as the user. then again I created a DB using Openerp frontend it creates the db under openerp as the user.
I only need one user wich both parties can access. How to do so ? when ever I tried to connect as openerp it asks for password which I didn't have. Please help me with this
You can check the configuration file of your Odoo, and inside it you will see a parameter named db_user (it will have openerp as its value). Its password will be set in db_password parameter. There you can know the password of the user openerp or even you will be able to modify both user and password to whatever you want.
I am using Oracle 11g client 32bit on all my servers and i have proceeded with all the dump imports the very same way I am doing here.
Firstly I create the user with default tablespace
Secondly I alter the user quota unlimited on tablespace
Thirdly I grant connect resource dba to the user.
Then I exit from Oracle and this is my import command
C:\Users\romit.poladiya>imp fajbdummy/fa#dmate file='E:\dump\fajblatest.dmp' full=Y;
I have always been doing this and I do not know why I have not been able to import this time. Please assist. Let me know if you require any more information
Thanking the team in advance,
Romit
ORA-01017: invalid username/password; logon denied
Cause: An invalid username or password was entered in an attempt to log on to Oracle. The username and password must be the same as was specified in a GRANT CONNECT statement. If the username and password are entered together, the format is: username/password.
Cure: Use the correct username & password. Check the system to make sure that the username exists, and set the password if necessary.
The following issue can be closed as I was able to do the tnsping but unfortunately my oracle went into an Idle Instance while I was connecting. Earlier it was not an issue and I have no idea whatever happened and the the oracle just went into Shutdown
Starting pgAdmin III on kubuntu with stored password asks for password every time connecting to database giving error "Error connecting to the server: fe_sendauth: no password supplied". It ignores checkbox in store password field.
I found reason for this in Postgresql mailing lists. Problem is when file /home/user/.pgpass has permisions more than u=rw 0600 pgAdmin ignores the file. Changing permisions for file resolves problem.