[ aws . glue ]

get-databases

Description

Retrieves all databases defined in a given Data Catalog.

See also: AWS API Documentation

See ‘aws help’ for descriptions of global parameters.

get-databases is a paginated operation. Multiple API calls may be issued in order to retrieve the entire data set of results. You can disable pagination by providing the --no-paginate argument. When using --output text and the --query argument on a paginated response, the --query argument must extract data from the results of the following query expressions: DatabaseList

Synopsis

  get-databases
[--catalog-id <value>]
[--resource-share-type <value>]
[--cli-input-json | --cli-input-yaml]
[--starting-token <value>]
[--page-size <value>]
[--max-items <value>]
[--generate-cli-skeleton <value>]

Options

--catalog-id (string)

The ID of the Data Catalog from which to retrieve Databases . If none is provided, the Amazon Web Services account ID is used by default.

--resource-share-type (string)

Allows you to specify that you want to list the databases shared with your account. The allowable values are FOREIGN or ALL .

• If set to FOREIGN , will list the databases shared with your account.

• If set to ALL , will list the databases shared with your account, as well as the databases in yor local account.

Possible values:

• FOREIGN

• ALL

--cli-input-json | --cli-input-yaml (string) Reads arguments from the JSON string provided. The JSON string follows the format provided by --generate-cli-skeleton. If other arguments are provided on the command line, those values will override the JSON-provided values. It is not possible to pass arbitrary binary values using a JSON-provided value as the string will be taken literally. This may not be specified along with --cli-input-yaml.

--starting-token (string)

A token to specify where to start paginating. This is the NextToken from a previously truncated response.

For usage examples, see Pagination in the AWS Command Line Interface User Guide .

--page-size (integer)

The size of each page to get in the AWS service call. This does not affect the number of items returned in the command’s output. Setting a smaller page size results in more calls to the AWS service, retrieving fewer items in each call. This can help prevent the AWS service calls from timing out.

For usage examples, see Pagination in the AWS Command Line Interface User Guide .

--max-items (integer)

The total number of items to return in the command’s output. If the total number of items available is more than the value specified, a NextToken is provided in the command’s output. To resume pagination, provide the NextToken value in the starting-token argument of a subsequent command. Do not use the NextToken response element directly outside of the AWS CLI.

For usage examples, see Pagination in the AWS Command Line Interface User Guide .

--generate-cli-skeleton (string) Prints a JSON skeleton to standard output without sending an API request. If provided with no value or the value input, prints a sample input JSON that can be used as an argument for --cli-input-json. Similarly, if provided yaml-input it will print a sample input YAML that can be used with --cli-input-yaml. If provided with the value output, it validates the command inputs and returns a sample output JSON for that command.

See ‘aws help’ for descriptions of global parameters.

Examples

To list the definitions of some or all of the databases in the AWS Glue Data Catalog

The following get-databases example returns information about the databases in the Data Catalog.

aws glue get-databases

Output:

{
    "DatabaseList": [
        {
            "Name": "default",
            "Description": "Default Hive database",
            "LocationUri": "file:/spark-warehouse",
            "CreateTime": 1602084052.0,
            "CreateTableDefaultPermissions": [
                {
                    "Principal": {
                        "DataLakePrincipalIdentifier": "IAM_ALLOWED_PRINCIPALS"
                    },
                    "Permissions": [
                        "ALL"
                    ]
                }
            ],
            "CatalogId": "111122223333"
        },
        {
            "Name": "flights-db",
            "CreateTime": 1587072847.0,
            "CreateTableDefaultPermissions": [
                {
                    "Principal": {
                        "DataLakePrincipalIdentifier": "IAM_ALLOWED_PRINCIPALS"
                    },
                    "Permissions": [
                        "ALL"
                    ]
                }
            ],
            "CatalogId": "111122223333"
        },
        {
            "Name": "legislators",
            "CreateTime": 1601415625.0,
            "CreateTableDefaultPermissions": [
                {
                    "Principal": {
                        "DataLakePrincipalIdentifier": "IAM_ALLOWED_PRINCIPALS"
                    },
                    "Permissions": [
                        "ALL"
                    ]
                }
            ],
            "CatalogId": "111122223333"
        },
        {
            "Name": "tempdb",
            "CreateTime": 1601498566.0,
            "CreateTableDefaultPermissions": [
                {
                    "Principal": {
                        "DataLakePrincipalIdentifier": "IAM_ALLOWED_PRINCIPALS"
                    },
                    "Permissions": [
                        "ALL"
                    ]
                }
            ],
            "CatalogId": "111122223333"
        }
    ]
}

For more information, see Defining a Database in Your Data Catalog in the AWS Glue Developer Guide.

Output

DatabaseList -> (list)

A list of Database objects from the specified catalog.

(structure)

The Database object represents a logical grouping of tables that might reside in a Hive metastore or an RDBMS.

Name -> (string)

The name of the database. For Hive compatibility, this is folded to lowercase when it is stored.

Description -> (string)

A description of the database.

LocationUri -> (string)

The location of the database (for example, an HDFS path).

Parameters -> (map)

These key-value pairs define parameters and properties of the database.

key -> (string)

value -> (string)

CreateTime -> (timestamp)

The time at which the metadata database was created in the catalog.

CreateTableDefaultPermissions -> (list)

Creates a set of default permissions on the table for principals.

(structure)

Permissions granted to a principal.

Principal -> (structure)

The principal who is granted permissions.

DataLakePrincipalIdentifier -> (string)

An identifier for the Lake Formation principal.

Permissions -> (list)

The permissions that are granted to the principal.

(string)

TargetDatabase -> (structure)

A DatabaseIdentifier structure that describes a target database for resource linking.

CatalogId -> (string)

The ID of the Data Catalog in which the database resides.

DatabaseName -> (string)

The name of the catalog database.

CatalogId -> (string)

The ID of the Data Catalog in which the database resides.

NextToken -> (string)

A continuation token for paginating the returned list of tokens, returned if the current segment of the list is not the last.