Checks whether a metatable exists.
Debugging
Authorization information
The following table shows the authorization information corresponding to the API. The authorization information can be used in the Action policy element to grant a RAM user or RAM role the permissions to call this API operation. Description:
- Operation: the value that you can use in the Action element to specify the operation on a resource.
- Access level: the access level of each operation. The levels are read, write, and list.
- Resource type: the type of the resource on which you can authorize the RAM user or the RAM role to perform the operation. Take note of the following items:
- The required resource types are displayed in bold characters.
- If the permissions cannot be granted at the resource level,
All Resourcesis used in the Resource type column of the operation.
- Condition Key: the condition key that is defined by the cloud service.
- Associated operation: other operations that the RAM user or the RAM role must have permissions to perform to complete the operation. To complete the operation, the RAM user or the RAM role must have the permissions to perform the associated operations.
| Operation | Access level | Resource type | Condition key | Associated operation |
|---|---|---|---|---|
| dataworks:* | get | *All Resources * |
| none |
Request parameters
| Parameter | Type | Required | Description | Example |
|---|---|---|---|---|
| TableGuid | string | Yes | The GUID of the metatable. | odps.engine_name.table_name |
| ClusterId | string | No | The E-MapReduce (EMR) cluster ID. | abc |
| DatabaseName | string | No | The name of the metadatabase of the EMR cluster. | abc |
| TableName | string | No | The name of the EMR metatable. | abc |
| DataSourceType | string | No | The type of the data source. Valid values: odps and emr. | emr |
Response parameters
Examples
Sample success responses
JSONformat
{
"Data": true,
"RequestId": "0bc1ec92159376"
}Error codes
| HTTP status code | Error code | Error message | Description |
|---|---|---|---|
| 400 | Invalid.Meta.TableNotExist | The table does not exist. | The table does not exist. |
| 400 | InvalidParameter.Meta.Illegal | The app guid parameter is invalid. | The app guid parameter is invalid. |
| 400 | InvalidParameter.Meta.NotExist | The object does not exist. | - |
| 400 | InternalError.UserId.Missing | An internal system error occurred. Try again later. | - |
| 400 | InternalError.Meta.NoCalcEngine | An error occurred while retrieving the compute engine based on the MaxCompute project. | Incorrect project entered by user |
| 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. | - |
| 500 | InternalError.System | An internal system error occurred. Try again later. | - |
| 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. |
For a list of error codes, visit the Service error codes.
Change history
| Change time | Summary of changes | Operation |
|---|
No change history