• A schema is a named collection of tables. A schema can also contain views, indexes, sequences, data types, operators, and functions.

--- Create schema:

postgres=# create schema dba_schema;
CREATE SCHEMA

-- Create schema with authorize particular user:

postgres=# create schema dba_schema authorization raj2;
CREATE SCHEMA

-- Drop schema

postgres=# drop schema dba_schema;
DROP SCHEMA

-- List down schemas present

postgres=# \dn+
List of schemas
Name        | Owner.   | Access privileges    | Description
------------+----------+----------------------+------------------------
dba_schema | raj2      |                      |
public     | postgres  | postgres=UC/postgres+| standard public schema| | =UC/postgres |
raj.       | postgres | |
(3 rows)