\connect

\c name_of_db or \connect name_of_db

tsdb=> \c tsdb
psql (14.7 (Ubuntu 14.7-1.pgdg22.04+1), server 15.2 (Ubuntu 15.2-1.pgdg22.04+1))
WARNING: psql major version 14, server major version 15.
         Some psql features might not work.
SSL connection (protocol: TLSv1.3, cipher: TLS_AES_256_GCM_SHA384, bits: 256, compression: off)
You are now connected to database "tsdb" as user "tsdbadmin".

Related

• List databases: \list

See also

• PostgreSQL: psql, .psqlrc, $HOME/.pg service.conf, -U, -W, -d, meta-commands: \du, \dg, \ddp, \dp, \list, \dn, \dt, \c, \l, \di, \q, show users, show, su - postgres, psql --help, psql -c, \?, \connect, --version