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---
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layout: global
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title: ALTER DATABASE
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displayTitle: ALTER DATABASE
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license: |
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Licensed to the Apache Software Foundation (ASF) under one or more
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contributor license agreements. See the NOTICE file distributed with
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this work for additional information regarding copyright ownership.
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The ASF licenses this file to You under the Apache License, Version 2.0
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(the "License"); you may not use this file except in compliance with
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the License. You may obtain a copy of the License at
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http://www.apache.org/licenses/LICENSE-2.0
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Unless required by applicable law or agreed to in writing, software
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distributed under the License is distributed on an "AS IS" BASIS,
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WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
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See the License for the specific language governing permissions and
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limitations under the License.
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---
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2019-08-28 18:30:38 -04:00
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### Description
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You can alter metadata associated with a database by setting `DBPROPERTIES`. The specified property
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values override any existing value with the same property name. Please note that the usage of
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`SCHEMA` and `DATABASE` are interchangeable and one can be used in place of the other. An error message
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is issued if the database is not found in the system. This command is mostly used to record the metadata
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for a database and may be used for auditing purposes.
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2019-08-28 18:30:38 -04:00
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### Syntax
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{% highlight sql %}
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ALTER {DATABASE | SCHEMA} database_name SET DBPROPERTIES (property_name=property_value, ...);
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{% endhighlight %}
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### Parameters
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<dl>
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<dt><code><em>database_name</em></code></dt>
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<dd>Specifies the name of the database to be altered.</dd>
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</dl>
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### Examples
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{% highlight sql %}
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-- Creates a database named `inventory`.
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CREATE DATABASE inventory;
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-- Alters the database to set properties `Edited-by` and `Edit-date`.
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ALTER DATABASE inventory SET DBPROPERTIES ('Edited-by' = 'John', 'Edit-date' = '01/01/2001');
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-- Verify that properties are set.
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DESCRIBE DATABASE EXTENDED inventory;
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+-------------------------+--------------------------------------------+
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|database_description_item|database_description_value |
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+-------------------------+--------------------------------------------+
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|Database Name |inventory |
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|Description | |
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|Location |file:/temp/spark-warehouse/inventory.db |
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|Properties |((Edit-date,01/01/2001), (Edited-by,John)) |
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+-------------------------+--------------------------------------------+
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{% endhighlight %}
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### Related Statements
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- [DESCRIBE DATABASE](sql-ref-syntax-aux-describe-database.html)
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