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AWS for Query.Farm

aws.qldb.describe_ledger

Example SQL Queries

SELECT * FROM
aws.qldb.describe_ledger
WHERE
"name" = 'VALUE';

Description

Returns information about a ledger, including its state, permissions mode, encryption at rest settings, and when it was created.

Table Definition

Column NameColumn Data Type
name Required Input Column

The name of the ledger.

VARCHAR
_aws_profile Input Column

The AWS profile defines the AWS identity used. It can be defined via credentials or by assuming a IAM role.

STRUCT(
    "type" VARCHAR,
    "name" VARCHAR,
    "account_id" VARCHAR,
    "via_profile_name" VARCHAR,
    "assumed_role_arn" VARCHAR,
    "organization" STRUCT(
        "account_name" VARCHAR,
        "id" VARCHAR,
        "tags" STRUCT(
            "key" VARCHAR,
            "value" VARCHAR
        )[],
        "master_account" STRUCT(
            "id" VARCHAR,
            "email" VARCHAR
        ),
        "parents" STRUCT(
            "type" VARCHAR,
            "id" VARCHAR,
            "name" VARCHAR,
            "tags" STRUCT(
                "key" VARCHAR,
                "value" VARCHAR
            )[]
        )[]
    )
)
Show child fields
_aws_profile.account_id

The AWS account id

_aws_profile.assumed_role_arn

The ARN of the assumed role

_aws_profile.name

The unique name of the profile.

_aws_profile.organization

Information about this profile's membership in the AWS organization.

Show child fields
_aws_profile.organization.account_name

The name of account speciifed by the organization

_aws_profile.organization.id

The organization id

_aws_profile.organization.master_account
Show child fields
_aws_profile.organization.master_account.email

The organization master account email address

_aws_profile.organization.master_account.id

The organization master account id

_aws_profile.organization.parents[]
Show child fields
_aws_profile.organization.parents[].id

The id of the parent

_aws_profile.organization.parents[].name

The name of the parent

_aws_profile.organization.parents[].tags[]
Show child fields
_aws_profile.organization.parents[].tags[].key
_aws_profile.organization.parents[].tags[].value
_aws_profile.organization.parents[].type

The type of parent can be an organization unit or a root

_aws_profile.organization.tags[]
Show child fields
_aws_profile.organization.tags[].key
_aws_profile.organization.tags[].value
_aws_profile.type

The type of profile, either 'credentials' or 'assumed_role'

_aws_profile.via_profile_name

This IAM role for this profile is assumed by first utilizing another profile with this name to obtain credentials.

_aws_region Input Column

The AWS region to use.

VARCHAR
arn

The Amazon Resource Name (ARN) for the ledger.

VARCHAR
creation_date_time

The date and time, in epoch time format, when the ledger was created. (Epoch time format is the number of seconds elapsed since 12:00:00 AM January 1, 1970 UTC.)

TIMESTAMP_S
deletion_protection

Specifies whether the ledger is protected from being deleted by any user. If not defined during ledger creation, this feature is enabled (true) by default.

If deletion protection is enabled, you must first disable it before you can delete the ledger. You can disable it by calling the UpdateLedger operation to set this parameter to false.

BOOLEAN
encryption_description

Information about the encryption of data at rest in the ledger. This includes the current status, the KMS key, and when the key became inaccessible (in the case of an error). If this parameter is undefined, the ledger uses an Amazon Web Services owned KMS key for encryption.

STRUCT(
    "kms_key_arn" VARCHAR,
    "encryption_status" VARCHAR,
    "inaccessible_kms_key_date_time" TIMESTAMP_S
)
Show child fields
encryption_description.encryption_status

The current state of encryption at rest for the ledger. This can be one of the following values:

  • ENABLED: Encryption is fully enabled using the specified key.

  • UPDATING: The ledger is actively processing the specified key change.

    Key changes in QLDB are asynchronous. The ledger is fully accessible without any performance impact while the key change is being processed. The amount of time it takes to update a key varies depending on the ledger size.

  • KMS_KEY_INACCESSIBLE: The specified customer managed KMS key is not accessible, and the ledger is impaired. Either the key was disabled or deleted, or the grants on the key were revoked. When a ledger is impaired, it is not accessible and does not accept any read or write requests.

    An impaired ledger automatically returns to an active state after you restore the grants on the key, or re-enable the key that was disabled. However, deleting a customer managed KMS key is irreversible. After a key is deleted, you can no longer access the ledgers that are protected with that key, and the data becomes unrecoverable permanently.

encryption_description.inaccessible_kms_key_date_time

The date and time, in epoch time format, when the KMS key first became inaccessible, in the case of an error. (Epoch time format is the number of seconds that have elapsed since 12:00:00 AM January 1, 1970 UTC.)

This parameter is undefined if the KMS key is accessible.

encryption_description.kms_key_arn

The Amazon Resource Name (ARN) of the customer managed KMS key that the ledger uses for encryption at rest. If this parameter is undefined, the ledger uses an Amazon Web Services owned KMS key for encryption. It will display AWS_OWNED_KMS_KEY when updating the ledger's encryption configuration to the Amazon Web Services owned KMS key.

permissions_mode

The permissions mode of the ledger.

VARCHAR
state

The current status of the ledger.

VARCHAR