更新时间:2025-08-01 GMT+08:00
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表数据预览

功能介绍

表数据预览

调用方法

请参见如何调用API

URI

GET /v3/{project_id}/asset/entities/guid/{guid}/preview

表1 路径参数

参数

是否必选

参数类型

描述

project_id

String

项目ID,获取方法请参见项目ID和账号ID

guid

String

资产guid,获取方法请参见数据资产guid

表2 Query参数

参数

是否必选

参数类型

描述

data_connection_id

String

连接id

data_type

String

数据源表类型,取值范围:hive_table、dws_table、dli_table、dli_table_managed、dli_table_external、dli_table_view、mysql_table、gbase_table、postgre_table、hbase_table、dm_table、doris_table、sqlserver_table。

database

String

database名称

schema

String

schema名称

table

String

table名称

datasource_workspace_id

String

数据源空间id

partitions_condition

String

分区名称,hive类型数据源可使用预览分区中数据

请求参数

表3 请求Header参数

参数

是否必选

参数类型

描述

X-Auth-Token

String

用户Token,使用Token认证时必选。通过调用IAM服务的“获取用户Token”接口获取响应消息头中X-Subject-Token的值。

workspace

String

工作空间ID,获取方法请参见实例ID和工作空间ID

响应参数

状态码:200

表4 响应Body参数

参数

参数类型

描述

rows

Array<Array<Object>>

表中数据信息列表

schema

Array of objects

字段信息列表

状态码:400

表5 响应Body参数

参数

参数类型

描述

error_code

String

错误码。

error_msg

String

错误描述。

状态码:401

表6 响应Body参数

参数

参数类型

描述

error_code

String

错误码。

error_msg

String

错误描述。

状态码:403

表7 响应Body参数

参数

参数类型

描述

error_code

String

错误码。

error_msg

String

错误描述。

状态码:404

表8 响应Body参数

参数

参数类型

描述

error_code

String

错误码。

error_msg

String

错误描述。

请求示例

响应示例

状态码:200

OK

{
  "rows" : null,
  "schema" : [ {
    "name" : "string"
  }, {
    "school" : "string"
  }, {
    "id" : "int"
  }, {
    "address" : "string"
  } ]
}

SDK代码示例

SDK代码示例如下。

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package com.huaweicloud.sdk.test;

import com.huaweicloud.sdk.core.auth.ICredential;
import com.huaweicloud.sdk.core.auth.BasicCredentials;
import com.huaweicloud.sdk.core.exception.ConnectionException;
import com.huaweicloud.sdk.core.exception.RequestTimeoutException;
import com.huaweicloud.sdk.core.exception.ServiceResponseException;
import com.huaweicloud.sdk.dataartsstudio.v1.region.DataArtsStudioRegion;
import com.huaweicloud.sdk.dataartsstudio.v1.*;
import com.huaweicloud.sdk.dataartsstudio.v1.model.*;


public class ShowDataPreviewSolution {

    public static void main(String[] args) {
        // The AK and SK used for authentication are hard-coded or stored in plaintext, which has great security risks. It is recommended that the AK and SK be stored in ciphertext in configuration files or environment variables and decrypted during use to ensure security.
        // In this example, AK and SK are stored in environment variables for authentication. Before running this example, set environment variables CLOUD_SDK_AK and CLOUD_SDK_SK in the local environment
        String ak = System.getenv("CLOUD_SDK_AK");
        String sk = System.getenv("CLOUD_SDK_SK");
        String projectId = "{project_id}";

        ICredential auth = new BasicCredentials()
                .withProjectId(projectId)
                .withAk(ak)
                .withSk(sk);

        DataArtsStudioClient client = DataArtsStudioClient.newBuilder()
                .withCredential(auth)
                .withRegion(DataArtsStudioRegion.valueOf("<YOUR REGION>"))
                .build();
        ShowDataPreviewRequest request = new ShowDataPreviewRequest();
        request.withGuid("{guid}");
        try {
            ShowDataPreviewResponse response = client.showDataPreview(request);
            System.out.println(response.toString());
        } catch (ConnectionException e) {
            e.printStackTrace();
        } catch (RequestTimeoutException e) {
            e.printStackTrace();
        } catch (ServiceResponseException e) {
            e.printStackTrace();
            System.out.println(e.getHttpStatusCode());
            System.out.println(e.getRequestId());
            System.out.println(e.getErrorCode());
            System.out.println(e.getErrorMsg());
        }
    }
}
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# coding: utf-8

import os
from huaweicloudsdkcore.auth.credentials import BasicCredentials
from huaweicloudsdkdataartsstudio.v1.region.dataartsstudio_region import DataArtsStudioRegion
from huaweicloudsdkcore.exceptions import exceptions
from huaweicloudsdkdataartsstudio.v1 import *

if __name__ == "__main__":
    # The AK and SK used for authentication are hard-coded or stored in plaintext, which has great security risks. It is recommended that the AK and SK be stored in ciphertext in configuration files or environment variables and decrypted during use to ensure security.
    # In this example, AK and SK are stored in environment variables for authentication. Before running this example, set environment variables CLOUD_SDK_AK and CLOUD_SDK_SK in the local environment
    ak = os.environ["CLOUD_SDK_AK"]
    sk = os.environ["CLOUD_SDK_SK"]
    projectId = "{project_id}"

    credentials = BasicCredentials(ak, sk, projectId)

    client = DataArtsStudioClient.new_builder() \
        .with_credentials(credentials) \
        .with_region(DataArtsStudioRegion.value_of("<YOUR REGION>")) \
        .build()

    try:
        request = ShowDataPreviewRequest()
        request.guid = "{guid}"
        response = client.show_data_preview(request)
        print(response)
    except exceptions.ClientRequestException as e:
        print(e.status_code)
        print(e.request_id)
        print(e.error_code)
        print(e.error_msg)
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package main

import (
	"fmt"
	"github.com/huaweicloud/huaweicloud-sdk-go-v3/core/auth/basic"
    dataartsstudio "github.com/huaweicloud/huaweicloud-sdk-go-v3/services/dataartsstudio/v1"
	"github.com/huaweicloud/huaweicloud-sdk-go-v3/services/dataartsstudio/v1/model"
    region "github.com/huaweicloud/huaweicloud-sdk-go-v3/services/dataartsstudio/v1/region"
)

func main() {
    // The AK and SK used for authentication are hard-coded or stored in plaintext, which has great security risks. It is recommended that the AK and SK be stored in ciphertext in configuration files or environment variables and decrypted during use to ensure security.
    // In this example, AK and SK are stored in environment variables for authentication. Before running this example, set environment variables CLOUD_SDK_AK and CLOUD_SDK_SK in the local environment
    ak := os.Getenv("CLOUD_SDK_AK")
    sk := os.Getenv("CLOUD_SDK_SK")
    projectId := "{project_id}"

    auth := basic.NewCredentialsBuilder().
        WithAk(ak).
        WithSk(sk).
        WithProjectId(projectId).
        Build()

    client := dataartsstudio.NewDataArtsStudioClient(
        dataartsstudio.DataArtsStudioClientBuilder().
            WithRegion(region.ValueOf("<YOUR REGION>")).
            WithCredential(auth).
            Build())

    request := &model.ShowDataPreviewRequest{}
	request.Guid = "{guid}"
	response, err := client.ShowDataPreview(request)
	if err == nil {
        fmt.Printf("%+v\n", response)
    } else {
        fmt.Println(err)
    }
}

更多编程语言的SDK代码示例,请参见API Explorer的代码示例页签,可生成自动对应的SDK代码示例。

状态码

状态码

描述

200

OK

400

BadRequest

401

Unauthorized

403

Forbidden

404

Not Found

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