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ALTER
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 settings.
The second and third forms change the session default for a run-time
configuration 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 whatever
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.
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 configuration
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 settings.
See SET [set(5)] and in 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(5)]. User-specific settings
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(5)], DROP DATABASE [drop_database(l)], SET
[set(l)]
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Index for Section DATABASE |
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 |
Alphabetical listing for A |
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Top of page |
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