Checks whether a table exists.

Debugging

OpenAPI Explorer automatically calculates the signature value. For your convenience, we recommend that you call this operation in OpenAPI Explorer. OpenAPI Explorer dynamically generates the sample code of the operation for different SDKs.

Request parameters

Parameter Type Required Example Description
Action String Yes CheckMetaTable

The operation that you want to perform. Set the value to CheckMetaTable.

TableGuid String Yes odps.engine_name.table_name

The GUID of the table.

RegionId String Yes cn-shanghai

The ID of the region.

ClusterId String No abc

The ID of the E-MapReduce (EMR) cluster.

DatabaseName String No abc

The name of the EMR database.

TableName String No abc

The name of the EMR table.

DataSourceType String No emr

The type of the data source. Valid values: odps and emr.

Response parameters

Parameter Type Example Description
Data Boolean true

Indicates whether the table exists.

RequestId String 0bc1ec92159376

The ID of the request.

Examples

Sample requests

http(s)://[Endpoint]/?Action=CheckMetaTable
&TableGuid=odps.engine_name.table_name
&ClusterId=abc
&DatabaseName=abc
&TableName=abc
&DataSourceType=emr
&<Common request parameters>

Sample success responses

XML format 

HTTP/1.1 200 OK
Content-Type:application/xml

<CheckMetaTableResponse>
    <Data>true</Data>
    <RequestId>0bc1ec92159376</RequestId>
</CheckMetaTableResponse>

JSON format 

HTTP/1.1 200 OK
Content-Type:application/json

{
  "Data" : true,
  "RequestId" : "0bc1ec92159376"
}

Error codes

HttpCode Error code Error message Description
400 Invalid.Meta.TableNotExist The table does not exist. The error message returned because the table does not exist.
400 InvalidParameter.Meta.Illegal The app guid parameter is invalid. The error message returned because the AppGuid parameter is invalid.
400 InvalidParameter.Meta.NotExist The object does not exist. The error message returned because the object you query does not exist.
400 InternalError.UserId.Missing An internal system error occurred. Try again later. The error message returned because an internal error has occurred. Try again later.
400 InternalError.Meta.NoCalcEngine An error occurred while retrieving the compute engine based on the MaxCompute project. The error message returned because the system has failed to obtain the compute engine instance based on the specified MaxCompute project.
403 Forbidden.Meta.NoTenant The user is not the owner of any tenants. The error message returned because the current user is not a tenant owner.
403 Forbidden.Access Access is forbidden. Please first activate DataWorks Enterprise Edition or Flagship Edition. The error message returned because you are not allowed to perform this operation. Activate DataWorks Enterprise Edition or DataWorks Ultimate Edition.
429 Throttling.Api The request for this resource has exceeded your available limit. The error message returned because the number of requests for the resource has exceeded the upper limit.
429 Throttling.Api.Risk The request for this resource has exceeded your daily available limit. The error message returned because the number of requests per day for the resource has exceeded the upper limit.
429 Throttling.System The DataWorks system is busy. Try again later. The error message returned because the DataWorks system is busy. Try again later.
429 Throttling.User Your request is too frequent. Try again later. The error message returned because excessive requests have been submitted within a short period of time. Try again later.
500 InternalError.System An internal system error occurred. Try again later. The error message returned because an internal error has occurred. Try again later.
500 InternalError.Meta.TenantTimeOut Failed to connect to the interface network. The error message returned because the network cannot be connected.
500 InternalError.Meta.Unknown An unknown error occurred while processing your request. The error message returned because an unknown error has occurred.

For a list of error codes, visit the API Error Center.

For more information about the example on how to use the CheckMetaTable operation, see Examples of DataWorks API operations.