ALTER DATABASE()		 SQL Commands		      ALTER DATABASE()



NAME
       ALTER DATABASE - change a database


SYNOPSIS
       ALTER DATABASE name [ [ WITH ] option [ ... ] ]

       where option can be:

	   CONNECTION LIMIT connlimit

       ALTER DATABASE name SET parameter { TO | = } { value | DEFAULT }
       ALTER DATABASE name RESET parameter

       ALTER DATABASE name RENAME TO newname

       ALTER DATABASE name OWNER TO new_owner


DESCRIPTION
       ALTER DATABASE changes the attributes of a database.

       The  first  form	 changes certain per-database settings. (See below for
       details.) Only the database owner or a superuser can change these  set-
       tings.

       The  second  and	 third forms change the session default for a run-time
       configuration variable for a PostgreSQL database. Whenever a  new  ses-
       sion  is	 subsequently  started	in  that database, the specified value
       becomes the session default value.  The database-specific default over-
       rides  whatever	setting	 is  present  in  postgresql.conf  or has been
       received from the postmaster command line. Only the database owner or a
       superuser can change the session defaults for a database. Certain vari-
       ables cannot be set this way, or can only be set by a superuser.

       The fourth form changes the name of the	database.  Only	 the  database
       owner  or  a superuser can rename a database; non-superuser owners must
       also have the  CREATEDB	privilege.  The	 current  database  cannot  be
       renamed. (Connect to a different database if you need to do that.)

       The  fifth form changes the owner of the database.  To alter the owner,
       you must own the database and also be a direct or  indirect  member  of
       the  new	 owning role, and you must have the CREATEDB privilege.	 (Note
       that superusers have all these privileges automatically.)

PARAMETERS
       name   The name of the database whose attributes are to be altered.

       connlimit
	      How many concurrent connections can be made to this database. -1
	      means no limit.

       parameter

       value  Set this database's session default for the specified configura-
	      tion parameter to the given  value.  If  value  is  DEFAULT  or,
	      equivalently,  RESET  is	used, the database-specific setting is
	      removed, so the system-wide default setting will be inherited in
	      new  sessions. Use RESET ALL to clear all database-specific set-
	      tings.

	      See SET [set(7)] and  the	 documentation	for  more  information
	      about allowed parameter names and values.

       newname
	      The new name of the database.

       new_owner
	      The new owner of the database.

NOTES
       It  is also possible to tie a session default to a specific user rather
       than to a database; see ALTER USER [alter_user(7)].  User-specific set-
       tings override database-specific ones if there is a conflict.

EXAMPLES
       To disable index scans by default in the database test:

       ALTER DATABASE test SET enable_indexscan TO off;


COMPATIBILITY
       The ALTER DATABASE statement is a PostgreSQL extension.

SEE ALSO
       CREATE DATABASE [create_database(7)], DROP DATABASE [drop_database(l)],
       SET [set(l)]



SQL - Language Statements	  2010-12-14		      ALTER DATABASE()