layout: global title: ALTER DATABASE displayTitle: ALTER DATABASE license: | Licensed to the Apache Software Foundation (ASF) under one or more contributor license agreements. See the NOTICE file distributed with this work for additional information regarding copyright ownership. The ASF licenses this file to You under the Apache License, Version 2.0 (the “License”); you may not use this file except in compliance with the License. You may obtain a copy of the License at
http://www.apache.org/licenses/LICENSE-2.0
You can alter metadata associated with a database by setting DBPROPERTIES
. The specified property values override any existing value with the same property name. Please note that the usage of SCHEMA
and DATABASE
are interchangeable and one can be used in place of the other. An error message is issued if the database is not found in the system. This command is mostly used to record the metadata for a database and may be used for auditing purposes.
ALTER { DATABASE | SCHEMA } database_name SET DBPROPERTIES ( property_name = property_value [ , ... ] )
database_name
Specifies the name of the database to be altered.
-- Creates a database named `inventory`. CREATE DATABASE inventory; -- Alters the database to set properties `Edited-by` and `Edit-date`. ALTER DATABASE inventory SET DBPROPERTIES ('Edited-by' = 'John', 'Edit-date' = '01/01/2001'); -- Verify that properties are set. DESCRIBE DATABASE EXTENDED inventory; +-------------------------+------------------------------------------+ |database_description_item| database_description_value| +-------------------------+------------------------------------------+ | Database Name| inventory| | Description| | | Location| file:/temp/spark-warehouse/inventory.db| | Properties|((Edit-date,01/01/2001), (Edited-by,John))| +-------------------------+------------------------------------------+