# AWS::Timestream::Database

The AWS::Timestream::Database resource creates a Timestream database.

## Syntax

To declare this entity in your AWS CloudFormation template, use the following syntax:

### JSON

<pre>
{
    "Type" : "AWS::Timestream::Database",
    "Properties" : {
        "<a href="#databasename" title="DatabaseName">DatabaseName</a>" : <i>String</i>,
        "<a href="#kmskeyid" title="KmsKeyId">KmsKeyId</a>" : <i>String</i>,
        "<a href="#tags" title="Tags">Tags</a>" : <i>[ <a href="tag.md">Tag</a>, ... ]</i>
    }
}
</pre>

### YAML

<pre>
Type: AWS::Timestream::Database
Properties:
    <a href="#databasename" title="DatabaseName">DatabaseName</a>: <i>String</i>
    <a href="#kmskeyid" title="KmsKeyId">KmsKeyId</a>: <i>String</i>
    <a href="#tags" title="Tags">Tags</a>: <i>
      - <a href="tag.md">Tag</a></i>
</pre>

## Properties

#### DatabaseName

The name for the database. If you don't specify a name, AWS CloudFormation generates a unique physical ID and uses that ID for the database name.

_Required_: No

_Type_: String

_Pattern_: <code>^[a-zA-Z0-9_.-]{3,256}$</code>

_Update requires_: [Replacement](https://docs.aws.amazon.com/AWSCloudFormation/latest/UserGuide/using-cfn-updating-stacks-update-behaviors.html#update-replacement)

#### KmsKeyId

The KMS key for the database. If the KMS key is not specified, the database will be encrypted with a Timestream managed KMS key located in your account.

_Required_: No

_Type_: String

_Minimum_: <code>1</code>

_Maximum_: <code>2048</code>

_Update requires_: [No interruption](https://docs.aws.amazon.com/AWSCloudFormation/latest/UserGuide/using-cfn-updating-stacks-update-behaviors.html#update-no-interrupt)

#### Tags

An array of key-value pairs to apply to this resource.

_Required_: No

_Type_: List of <a href="tag.md">Tag</a>

_Update requires_: [No interruption](https://docs.aws.amazon.com/AWSCloudFormation/latest/UserGuide/using-cfn-updating-stacks-update-behaviors.html#update-no-interrupt)

## Return Values

### Ref

When you pass the logical ID of this resource to the intrinsic `Ref` function, Ref returns the DatabaseName.

### Fn::GetAtt

The `Fn::GetAtt` intrinsic function returns a value for a specified attribute of this type. The following are the available attributes and sample return values.

For more information about using the `Fn::GetAtt` intrinsic function, see [Fn::GetAtt](https://docs.aws.amazon.com/AWSCloudFormation/latest/UserGuide/intrinsic-function-reference-getatt.html).

#### Arn

Returns the <code>Arn</code> value.