alter_database man page on Mandriva

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ALTER DATABASE(7)		 SQL Commands		     ALTER DATABASE(7)

NAME
       ALTER DATABASE - change a database

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

       where option can be:

	   CONNECTION LIMIT connlimit

       ALTER DATABASE name RENAME TO newname

       ALTER DATABASE name OWNER TO new_owner

       ALTER DATABASE name SET TABLESPACE new_tablespace

       ALTER DATABASE name SET configuration_parameter { TO | = } { value | DEFAULT }
       ALTER DATABASE name SET configuration_parameter FROM CURRENT
       ALTER DATABASE name RESET configuration_parameter
       ALTER DATABASE name RESET ALL

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  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 third 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.)

       The  fourth  form changes the default tablespace of the database.  Only
       the database owner or a superuser can do this; you must also have  cre‐
       ate  privilege  for  the new tablespace.	 This command physically moves
       any tables or indexes in the database's old default tablespace  to  the
       new tablespace. Note that tables and indexes in non-default tablespaces
       are not affected.

       The remaining forms change the session default for a run-time  configu‐
       ration  variable	 for  a PostgreSQL database. Whenever a new session is
       subsequently started in that database, the specified value becomes  the
       session	default	 value.	 The database-specific default overrides what‐
       ever setting is present in postgresql.conf or has  been	received  from
       the  postgres  command line. Only the database owner or a superuser can
       change the session defaults for a database. Certain variables cannot be
       set this way, or can only be set by a superuser.

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.

       newname
	      The new name of the database.

       new_owner
	      The new owner of the database.

       new_tablespace
	      The new default tablespace of the database.

       configuration_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.   SET  FROM  CURRENT saves the session's current value of
	      the parameter as the database-specific value.

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

NOTES
       It  is also possible to tie a session default to a specific role rather
       than to a database; see ALTER ROLE [alter_role(7)].  Role-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(7)],
       SET [set(7)], CREATE TABLESPACE [create_tablespace(7)]

SQL - Language Statements	  2010-10-01		     ALTER DATABASE(7)
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