We can switch a user in PostgreSQL by simply executing the SET ROLE command. But the point to be noted is that we can only switch the user if it already exists. Otherwise, switching the user to a user that does not already exist causes an error.

Aug 25, 2020 · CREATE user <username>; username is the name you wish to use, eg. doe, Now use the set command above to switch to the username. To return to the default user postgres, use command \c. follow this Docs for more.

use OWASP's ESAPI to encode the username to avoid SQL Injection. Can't use parameters with SET ROLE. Need to write PG codec. Or use a whitelist-map approach. */ String username = ESAPI.encoder().encodeForSQL(MY_CODEC, authentication.getName()); Statement statement = pooledConnection.getConnection().createStatement();

May 18, 2017 · Connection \c[onnect] {[DBNAME|- USER|- HOST|- PORT|-] | conninfo} connect to new database (currently "postgres") So you need to use: \c shorturl shorturl

Dec 27, 2023 · To switch users, simply use the \c meta-command: You will be prompted for the password of newuser before changing roles. Let‘s look at some examples of switching users with psql: current_user .

Oct 7, 2016 · In the Properties dialog change to the Connection tab and then change the Username that you will connect to the server with. You may need to change the maintenance database to something the user has access to. After doing this, when you open the Query Tool it will connect with your desired user.

Feb 20, 2025 · ALTER USER is now an alias for ALTER ROLE. The ALTER USER statement is a PostgreSQL extension. The SQL standard leaves the definition of users to the implementation.

Feb 16, 2024 · Changing a user to a superuser in PostgreSQL is a straightforward process that involves using commands to alter the user's role. PostgreSQL, as a robust open-source relational database management system, allows administrators to manage user roles efficiently.

Mar 14, 2024 · The su command allows you to switch to another user in PostgreSQL. The psql command allows you to access the PostgreSQL shell. The SET ROLE command allows you to temporarily change your privileges and access level. The CREATE USER, ALTER USER, and DROP USER commands allow you to manage users …

Sep 30, 2020 · Change user, enter with the postgres users and then execute the following command in the console changing the data for those of your interest. I am logged in by console inside a Postgresql database with the postgres user. I have another user in which I want to st - …