ListMetaDB-DataWorks(DataWorks)-阿里云帮助中心

Queries a list of databases.

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RAM authorization

The table below describes the authorization required to call this API. You can define it in a Resource Access Management (RAM) policy. The table's columns are detailed below:

Action: The actions can be used in the Action element of RAM permission policy statements to grant permissions to perform the operation.
API: The API that you can call to perform the action.
Access level: The predefined level of access granted for each API. Valid values: create, list, get, update, and delete.
Resource type: The type of the resource that supports authorization to perform the action. It indicates if the action supports resource-level permission. The specified resource must be compatible with the action. Otherwise, the policy will be ineffective.
- For APIs with resource-level permissions, required resource types are marked with an asterisk (*). Specify the corresponding Alibaba Cloud Resource Name (ARN) in the Resource element of the policy.
- For APIs without resource-level permissions, it is shown as All Resources. Use an asterisk (*) in the Resource element of the policy.
Condition key: The condition keys defined by the service. The key allows for granular control, applying to either actions alone or actions associated with specific resources. In addition to service-specific condition keys, Alibaba Cloud provides a set of common condition keys applicable across all RAM-supported services.
Dependent action: The dependent actions required to run the action. To complete the action, the RAM user or the RAM role must have the permissions to perform all dependent actions.

Action

Access level

Resource type

Condition key

Dependent action

dataworks:*

get

*All Resource

*

None

Request parameters

Parameter	Type	Required	Description	Example
ProjectId	integer	Yes	The ID of the DataWorks workspace. You can call ListProjects to obtain the workspace ID.	123
DataSourceType	string	Yes	The data type. Currently, only emr is supported.	emr
PageNum	integer	No	The page number.	1
PageSize	integer	No	The number of entries per page. Default value: 10. Maximum value: 100.	10
ClusterId	string	No	The ID of the EMR cluster. You can log on to the EMR console to obtain the cluster ID.	abc

Response elements

Element	Type	Description	Example
	object	The response struct.
RequestId	string	The request ID.	abc
DatabaseInfo	object	The database information.
TotalCount	integer	The total number of databases.	10
DbList	array<object>	The list of databases.
	object	The response struct.
Type	string	The type of the database.	HIVE
CreateTimeStamp	integer	The time when the database was created. The value is a timestamp. You can convert the timestamp to a date based on your time zone.	1388776825
UUID	string	The unique identifier of the database.	32342
ModifiedTimeStamp	integer	The time when the database was last updated.	1388776837
Name	string	The name of the database.	name
OwnerId	string	The ID of the owner.	1232
Location	string	The storage address of the database.	hdfs://localhost:777/user/hadoop/test.txt

Examples

Success response

JSON format

{
  "RequestId": "abc",
  "DatabaseInfo": {
    "TotalCount": 10,
    "DbList": [
      {
        "Type": "HIVE",
        "CreateTimeStamp": 1388776825,
        "UUID": "32342",
        "ModifiedTimeStamp": 1388776837,
        "Name": "name",
        "OwnerId": "1232",
        "Location": "hdfs://localhost:777/user/hadoop/test.txt"
      }
    ]
  }
}

Error codes

HTTP status code	Error code	Error message	Description
400	Invalid.Meta.AppNotExist	The MaxCompute project does not exist.	The MaxCompute project does not exist.
400	InvalidParameter.Meta.CommonError	The specified parameter is invalid.	The request parameter is invalid.
400	InvalidParameter.Meta.Illegal	The app guid parameter is invalid.	The app guid parameter is invalid.
400	InvalidParameter.Meta.IllegalDate	The date format is invalid.	The date format is invalid.
400	InvalidParameter.Meta.IllegalPageError	The parameter for paging is invalid.	The parameter for paging is invalid.
400	InvalidParameter.Meta.NotExist	The object does not exist.
500	InternalError.System	An internal system error occurred. Try again later.
500	InternalError.UserId.Missing	An internal system error occurred. Try again later.
500	InternalError.Meta.NoCalcEngine	An error occurred while retrieving the compute engine based on the MaxCompute project.
500	InternalError.Meta.TenantTimeOut	Failed to connect to the interface network.	Failed to connect to the interface network.
500	InternalError.Meta.Unknown	An unknown error occurred while processing your request.	An unknown error occurred while processing your request.
403	Forbidden.Meta.NoTenant	The user is not the owner of any tenants.	The user is not the owner of any tenants.
403	Forbidden.Access	Access is forbidden. Please first activate DataWorks Enterprise Edition or Flagship Edition.	No permission, please authorize
429	Throttling.Api	The request for this resource has exceeded your available limit.
429	Throttling.Api.Risk	The request for this resource has exceeded your daily available limit.
429	Throttling.System	The DataWorks system is busy. Try again later.
429	Throttling.User	Your request is too frequent. Try again later.

See Error Codes for a complete list.

Release notes

See Release Notes for a complete list.