create_schema man page on aLinux

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CREATE SCHEMA()			 SQL Commands		       CREATE SCHEMA()

NAME
       CREATE SCHEMA - define a new schema

SYNOPSIS
       CREATE SCHEMA schemaname [ AUTHORIZATION username ] [ schema_element [ ... ] ]
       CREATE SCHEMA AUTHORIZATION username [ schema_element [ ... ] ]

DESCRIPTION
       CREATE  SCHEMA  enters  a  new  schema  into the current database.  The
       schema name must be distinct from the name of any  existing  schema  in
       the current database.

       A schema is essentially a namespace: it contains named objects (tables,
       data types, functions, and operators) whose names may  duplicate	 those
       of  other objects existing in other schemas. Named objects are accessed
       either by ``qualifying'' their names with the schema name as a  prefix,
       or by setting a search path that includes the desired schema(s). A CRE‐
       ATE command specifying an unqualified object name creates the object in
       the  current schema (the one at the front of the search path, which can
       be determined with the function current_schema).

       Optionally, CREATE SCHEMA can include  subcommands  to  create  objects
       within the new schema. The subcommands are treated essentially the same
       as separate commands issued after creating the schema, except  that  if
       the AUTHORIZATION clause is used, all the created objects will be owned
       by that user.

PARAMETERS
       schemaname
	      The name of a schema to be created. If this is omitted, the user
	      name is used as the schema name. The name cannot begin with pg_,
	      as such names are reserved for system schemas.

       username
	      The name of the user  who	 will  own  the	 schema.  If  omitted,
	      defaults	to the user executing the command. Only superusers may
	      create schemas owned by users other than themselves.

       schema_element
	      An SQL statement defining an object to  be  created  within  the
	      schema. Currently, only CREATE TABLE, CREATE VIEW, CREATE INDEX,
	      CREATE SEQUENCE,	CREATE	TRIGGER	 and  GRANT  are  accepted  as
	      clauses within CREATE SCHEMA. Other kinds of objects may be cre‐
	      ated in separate commands after the schema is created.

NOTES
       To create a schema, the invoking user must have	the  CREATE  privilege
       for the current database.  (Of course, superusers bypass this check.)

EXAMPLES
       Create a schema:

       CREATE SCHEMA myschema;

       Create a schema for user joe; the schema will also be named joe:

       CREATE SCHEMA AUTHORIZATION joe;

       Create a schema and create a table and view within it:

       CREATE SCHEMA hollywood
	   CREATE TABLE films (title text, release date, awards text[])
	   CREATE VIEW winners AS
	       SELECT title, release FROM films WHERE awards IS NOT NULL;

       Notice that the individual subcommands do not end with semicolons.

       The following is an equivalent way of accomplishing the same result:

       CREATE SCHEMA hollywood;
       CREATE TABLE hollywood.films (title text, release date, awards text[]);
       CREATE VIEW hollywood.winners AS
	   SELECT title, release FROM hollywood.films WHERE awards IS NOT NULL;

COMPATIBILITY
       The  SQL	 standard  allows  a  DEFAULT  CHARACTER  SET clause in CREATE
       SCHEMA, as well as more subcommand types than are presently accepted by
       PostgreSQL.

       The  SQL	 standard  specifies that the subcommands in CREATE SCHEMA may
       appear in any order. The present	 PostgreSQL  implementation  does  not
       handle all cases of forward references in subcommands; it may sometimes
       be necessary to reorder the subcommands in order to avoid forward  ref‐
       erences.

       According  to  the  SQL standard, the owner of a schema always owns all
       objects within it. PostgreSQL allows schemas to contain	objects	 owned
       by  users  other	 than  the  schema  owner. This can happen only if the
       schema owner grants the CREATE privilege on his schema to someone else.

SEE ALSO
       ALTER SCHEMA [alter_schema(7)], DROP SCHEMA [drop_schema(l)]

SQL - Language Statements	  2005-11-05		       CREATE SCHEMA()
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