Query Data Comparison Subtask Details

Query the execution details of a specified data comparison subtask.

Request URL: /openapi/v1/comparedata/queryTaskExecInfo

Request Method: GET

Before You Call

You can obtain execId in either of the following ways:

• Call Start Data Comparison Task and use data in the successful response.
• Call Query Data Comparison Main Task Details and use data.lastExecId in the response.

Request Parameters

Parameter	Type	Required	Description	Example
execId	String	Yes	Data comparison subtask ID. In most cases, use lastExecId from the main task response or data from the start task response.	315337

How to Use the Returned Value

data.taskId is the main task ID that this subtask belongs to. If you need to view the main task configuration again, pass this value to Query Data Comparison Main Task Details.

Request Example

{
  "execId": 315337
}

Response Parameters

Parameter	Type	Description	Example
success	Boolean	Whether the request is successful.	true
requestId	String	Request ID, which can be used for troubleshooting and tracing.	Hg4d2OLN-DJJKnOZnEELv6ZUdFHc8LBG
data	Object	Subtask execution details object.	See the field descriptions below

Subtask Fields

Parameter	Type	Description	Example
id	String	Data comparison subtask ID.	315337
taskId	String	Main task ID that this subtask belongs to.	cd-tepmjmnj6o
status	String	Task status. success means completed, failed means failed, starting means starting, and running means running.	starting
onlySourceRows	Integer	Number of rows that exist only in the source.	0
onlyTargetRows	Integer	Number of rows that exist only in the target.	0
errorMessage	String	Error message. It contains details when the subtask fails or encounters an exception.	""
differenceRows	Integer	Number of rows that are different between source and target.	0
skipTableCount	Integer	Number of tables skipped during comparison.	0

Successful Invocation Example

{
  "success": true,
  "requestId": "Hg4d2OLN-DJJKnOZnEELv6ZUdFHc8LBG",
  "data": {
    "id": 315337,
    "createTime": "2026-05-08 08:35:40Z",
    "updateTime": "2026-05-08 08:35:40Z",
    "taskId": "cd-tepmjmnj6o",
    "status": "starting",
    "accountId": "1708516390626159",
    "errorMessage": "",
    "execType": "manual",
    "tableCount": 0,
    "sourceTotalRows": 0,
    "targetTotalRows": 0,
    "sourceCompletedRows": 0,
    "targetCompletedRows": 0,
    "onlySourceRows": 0,
    "onlyTargetRows": 0,
    "differenceRows": 0,
    "sameRows": 0,
    "skipTableCount": 0
  }
}