ALTER DATABASESQL - Language Statements (2002-11ALTER DATABASE(l)
NAME
ALTER DATABASE - change a database
SYNOPSIS
ALTER DATABASE name SET variable { TO | = } { value | DEFAULT }
ALTER DATABASE name RESET variable
DESCRIPTION
ALTER DATABASE is used to change the session default of 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 postmaster.
Only a superuser or the database owner can change the
session defaults for a database.
PARAMETERS
name The name of the database whose session defaults are to
be altered.
variable
value
Set the session default for this database of the
specified configuration variable to the given value. If
value is DEFAULT or, equivalently, RESET is used, the
database-specific variable setting is removed and the
system-wide default setting will be inherited in new
sessions. Use RESET ALL to clear all settings.
See SET [set(l)] and the Administrator's Guide for more
information about allowed variable names and values.
DIAGNOSTICS
ALTER DATABASE
Message returned if the alteration was successful.
ERROR: database "dbname" does not exist
Error message returned if the specified database is not
known to the system.
NOTES
Using ALTER USER [alter_user(l)], it is also possible to tie
a session default to a specific user rather than a database.
User-specific settings override database-specific ones if
there is a conflict.
EXAMPLES
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ALTER DATABASESQL - Language Statements (2002-11ALTER DATABASE(l)
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
ALTER USER [alter_user(l)], CREATE DATABASE
[create_database(l)], DROP DATABASE [drop_database(l)], SET
[set(l)]
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