PostgreSQL will search for the staff table in the postgres schema. The PostgreSQL server must be properly installed, configured and running. Answer: In PostgreSQL, there is a system view called pg_stat_activity which shows the current processes being run in the database. To know the login name of the currently logged in user we can run the below command. So just by printing the value in these environment variables we can get to know the login name. Test 2: log_statement = 'all' #in postgresql.conf This time, all the user's statements were logged, regardless of what the user's log_statement was set to. This article discusses connections to PostgreSQL database servers. A role can be thought of as either a database user, or a group of database users, depending on how the role is set up. The logged in user information is stored in environment variables. Super user account in postgres is : postgres which is the database user and also OS user having all the access like :Superuser, Create role, Create DB, Replication, Bypass RLS etc.. You need to login as database super user under postgresql server. In Windows OS, we can find the current logged in username from windows command line. Below is the process of logging in to PostgreSQL Database Server : [root@hostname ~]# psql -Upostgres Password for user postgres psql (9.4.5) Type "help" for help. Install pg-top (in Debian, the package is called "ptop"). On Wed, Jun 9, 2010 at 2:52 AM, Schwaighofer Clemens <[hidden email]> wrote: > Hi, > > I am trying to figure out how I can show the current search_path, or > better the first search_path entry (the active schema) in the PROMPT > variable for psql. I deliberately skip function and language privileges here, found in psql manual as barely manipulated (and if you do use those privileges you wont come here for an advise). Step #3: Now connect to database server. Same results setting user's log_statement to none and all. > > Is there any way to do that? IOW, same results as before. Introduction to PostgreSQL GRANT. Download PostgreSQL For Linux and Windows systems here; Common PostgreSQL User Commands. I … However, the user's ddl and mod statements were logged; I expected only the ddl statement. Query select usesysid as user_id, usename as username, usesuper as is_superuser, passwd as password_md5, valuntil as password_expiration from pg_shadow order by usename; Prerequisites for Listing users in PostgreSQL. ROLES: PostgreSQL manages database access permissions using the concept of roles. GRANT query also provides us with one more facility to grant membership to a particular role. PostgreSQL: Find Users logged into PostgreSQL Question: Is there a query to run that will return all Users that are currently logged into PostgreSQL? Query below returns list of users in current database. For example, if you use the postgres user to login and access the staff table. See also pg-top, which acts like top except it shows postgres activity. In PostgreSQL, whenever you want to assign privileges for certain database object then you can use the GRANT query statement. States of a connection Identifying the connection states and duration Identifying the connections that are not required Terminating a connection when necessary postgres=# So, after successfully logged in to PostgreSQL Command Console, to be able to show the current database being accessed, just execute the following command : It first reviews the possible states for a connection and then shows how to identify and terminate connections that are lying idle and consuming resources. 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