Nie można usunąć bazy danych

Jestem nowym użytkownikiem PostgreSQL i mam problem z tym, co uważam za proste polecenieDROP DATABASE iDROPDB. Dlaczego poniższe polecenia nie usuwają mojej bazy danych?

postgres=# drop database clientms
postgres-# \l
                                    List of databases
   Name    |    Owner     | Encoding |   Collate   |    Ctype    |   Access privileges   
-----------+--------------+----------+-------------+-------------+-----------------------
 clientms  | clientmsuser | UTF8     | en_GB.UTF-8 | en_GB.UTF-8 | 
 postgres  | postgres     | UTF8     | en_GB.UTF-8 | en_GB.UTF-8 | 
 template0 | postgres     | UTF8     | en_GB.UTF-8 | en_GB.UTF-8 | =c/postgres          +
           |              |          |             |             | postgres=CTc/postgres
 template1 | postgres     | UTF8     | en_GB.UTF-8 | en_GB.UTF-8 | =c/postgres          +
           |              |          |             |             | postgres=CTc/postgres
(4 rows)

postgres-# dropdb clientms
postgres-# \l
                                    List of databases
   Name    |    Owner     | Encoding |   Collate   |    Ctype    |   Access privileges   
-----------+--------------+----------+-------------+-------------+-----------------------
 clientms  | clientmsuser | UTF8     | en_GB.UTF-8 | en_GB.UTF-8 | 
 postgres  | postgres     | UTF8     | en_GB.UTF-8 | en_GB.UTF-8 | 
 template0 | postgres     | UTF8     | en_GB.UTF-8 | en_GB.UTF-8 | =c/postgres          +
           |              |          |             |             | postgres=CTc/postgres
 template1 | postgres     | UTF8     | en_GB.UTF-8 | en_GB.UTF-8 | =c/postgres          +
           |              |          |             |             | postgres=CTc/postgres
(4 rows)

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