在 Knowledge Catalog 搜尋資料資產

本文說明如何在 Knowledge Catalog 搜尋資料資產。

事前準備

執行搜尋前，請確認您已取得必要角色，並啟用必要 API。

注意： 如果這是您第一次使用 Knowledge Catalog 探索資料，建議您按照快速入門導覽課程「建立及使用組織詞彙」操作。

必要的角色

如要取得在 Knowledge Catalog 搜尋項目及存取搜尋結果所需的權限，請要求管理員授予您下列 IAM 角色：

• 搜尋項目：
  • 用於搜尋的專案具備 Dataplex Catalog 管理員 (roles/dataplex.catalogAdmin) 角色
  • 用於搜尋的專案具備 Dataplex Catalog 編輯者 (roles/dataplex.catalogEditor) 角色
  • 在用於搜尋的專案中，具備 Dataplex Catalog 檢視者 (roles/dataplex.catalogViewer) 角色
• 搜尋 BigQuery 資料集和資料表的中繼資料：資料集或資料表的 BigQuery 中繼資料檢視者 (roles/bigquery.metadataViewer)
• 搜尋自訂項目：在用於搜尋的專案中，具備 Dataplex Catalog 檢視者 (roles/dataplex.catalogViewer) 角色

如要進一步瞭解如何授予角色，請參閱「管理專案、資料夾和組織的存取權」。

您或許也能透過自訂角色或其他預先定義的角色，取得必要權限。

資料資產層級權限

搜尋結果會依據您的存取層級限定範圍，不受所選專案影響。如要在 Knowledge Catalog 尋找資料資產，您必須在基礎來源系統中具備該資料資產的適當讀取的權限。

舉例來說，如要尋找 BigQuery 資料表，需要 BigQuery 中繼資料檢視者 (roles/bigquery.metadataViewer) 角色，而尋找 Cloud SQL 執行個體則需要對等的 Cloud SQL 權限。詳情請參閱「搜尋範圍」。

啟用 API

啟用 Dataplex API (如果尚未啟用)。

啟用 API 所需的角色

您必須具備 serviceusage.services.enable 權限，才能啟用 API。如果您建立了專案，可能已透過「擁有者」角色 (roles/owner) 取得這項權限。否則，您可以透過「Service Usage 管理員」角色 (roles/serviceusage.serviceUsageAdmin) 取得這項權限。瞭解如何授予角色。

啟用 API

搜尋資料資產

注意： Knowledge Catalog 會將日期分區資料表的每個 shard 建立索引，視為搜尋結果會傳回所有個別 shard (例如 my_table20240312 和 my_table20240311)。

控制台

如要搜尋資料資產，請按照下列步驟操作：

1. 在 Google Cloud 控制台，前往 Knowledge Catalog 的「Search」(搜尋) 頁面。

   前往「Search」(搜尋) 頁面

2. 如果看到「試用自然語言搜尋」按鈕提示，請點選該按鈕。系統預設會選取自然語言搜尋。

3. 在「以自然語言尋找各項專案的資源」欄位中輸入查詢，然後按下 Enter 鍵。

4. 如要修正搜尋範圍，請按一下「篩選器」。

   • 系統會使用 AND 邏輯運算子評估多個部分的篩選器。
   • 系統會使用 OR 邏輯運算子，評估單一區段中的多個篩選器。

   可用的篩選器如下：

   • 「Scope」(範圍)：搜尋整個組織 (預設)、目前專案，或僅搜尋已加星號的資料資產。詳情請參閱「搜尋範圍」。
   • 系統：資產所屬的 Google Cloud 服務，例如 BigQuery。Knowledge Catalog 系統包含項目群組。
   • 專案：要搜尋的專案。
   • 類型：資料資產類型，例如 BigQuery 連線、Cloud Storage bucket 或資料庫。您也可以依據資料資產類型，篩選子類型，例如連線類型或 SQL 方言。
   • 選取位置：要搜尋的位置。
   • 選取資料集：搜尋結果僅限於屬於所選 BigQuery 資料集的 BigQuery 資產。在「Type to filter」(輸入篩選條件) 欄位中，輸入資料集名稱。
   • 切面類型：與您搜尋的資料資產相關聯的 Knowledge Catalog 切面類型。如要依切面值篩選，請按一下「Filter on aspect type values」(篩選切面類型值)，然後選取值。

5. 如要查看搜尋到的資料資產詳細資訊，請在搜尋結果中點選資料資產名稱，開啟項目詳細資料頁面。

Google Cloud CLI

如要搜尋資料資產，請使用 gcloud dataplex entries search 指令：

gcloud dataplex entries search 'foo' \
  --project=PROJECT_ID \
  --semantic-search

將 PROJECT_ID 替換為 Google Cloud 專案 ID。

C#

C#

在試用這個範例之前，請先按照「使用用戶端程式庫的 Knowledge Catalog 快速入門導覽課程」中的 C# 設定說明操作。詳情請參閱 Knowledge Catalog C# API 參考文件。

如要向 Knowledge Catalog 進行驗證，請設定應用程式預設憑證。詳情請參閱「為本機開發環境設定驗證機制」。

using Google.Api.Gax;
using Google.Api.Gax.ResourceNames;
using Google.Cloud.Dataplex.V1;
using System;

public sealed partial class GeneratedCatalogServiceClientSnippets
{
    /// <summary>Snippet for SearchEntries</summary>
    /// <remarks>
    /// This snippet has been automatically generated and should be regarded as a code template only.
    /// It will require modifications to work:
    /// - It may require correct/in-range values for request initialization.
    /// - It may require specifying regional endpoints when creating the service client as shown in
    ///   https://cloud.google.com/dotnet/docs/reference/help/client-configuration#endpoint.
    /// </remarks>
    public void SearchEntriesRequestObject()
    {
        // Create client
        CatalogServiceClient catalogServiceClient = CatalogServiceClient.Create();
        // Initialize request argument(s)
        SearchEntriesRequest request = new SearchEntriesRequest
        {
            LocationName = LocationName.FromProjectLocation("[PROJECT]", "[LOCATION]"),
            Query = "",
            OrderBy = "",
            Scope = "",
            SemanticSearch = false,
        };
        // Make the request
        PagedEnumerable<SearchEntriesResponse, SearchEntriesResult> response = catalogServiceClient.SearchEntries(request);

        // Iterate over all response items, lazily performing RPCs as required
        foreach (SearchEntriesResult item in response)
        {
            // Do something with each item
            Console.WriteLine(item);
        }

        // Or iterate over pages (of server-defined size), performing one RPC per page
        foreach (SearchEntriesResponse page in response.AsRawResponses())
        {
            // Do something with each page of items
            Console.WriteLine("A page of results:");
            foreach (SearchEntriesResult item in page)
            {
                // Do something with each item
                Console.WriteLine(item);
            }
        }

        // Or retrieve a single page of known size (unless it's the final page), performing as many RPCs as required
        int pageSize = 10;
        Page<SearchEntriesResult> singlePage = response.ReadPage(pageSize);
        // Do something with the page of items
        Console.WriteLine($"A page of {pageSize} results (unless it's the final page):");
        foreach (SearchEntriesResult item in singlePage)
        {
            // Do something with each item
            Console.WriteLine(item);
        }
        // Store the pageToken, for when the next page is required.
        string nextPageToken = singlePage.NextPageToken;
    }
}

Go

Go

在試用這個範例之前，請先按照「使用用戶端程式庫的 Knowledge Catalog 快速入門導覽課程」中的 Go 設定說明操作。詳情請參閱 Knowledge Catalog Go API 參考文件。

如要向 Knowledge Catalog 進行驗證，請設定應用程式預設憑證。詳情請參閱「為本機開發環境設定驗證機制」。

//go:build examples

package main

import (
	"context"

	dataplex "cloud.google.com/go/dataplex/apiv1"
	dataplexpb "cloud.google.com/go/dataplex/apiv1/dataplexpb"
	"google.golang.org/api/iterator"
)

func main() {
	ctx := context.Background()
	// This snippet has been automatically generated and should be regarded as a code template only.
	// It will require modifications to work:
	// - It may require correct/in-range values for request initialization.
	// - It may require specifying regional endpoints when creating the service client as shown in:
	//   https://pkg.go.dev/cloud.google.com/go#hdr-Client_Options
	c, err := dataplex.NewCatalogClient(ctx)
	if err != nil {
		// TODO: Handle error.
	}
	defer c.Close()

	req := &dataplexpb.SearchEntriesRequest{
		// TODO: Fill request struct fields.
		// See https://pkg.go.dev/cloud.google.com/go/dataplex/apiv1/dataplexpb#SearchEntriesRequest.
	}
	it := c.SearchEntries(ctx, req)
	for {
		resp, err := it.Next()
		if err == iterator.Done {
			break
		}
		if err != nil {
			// TODO: Handle error.
		}
		// TODO: Use resp.
		_ = resp

		// If you need to access the underlying RPC response,
		// you can do so by casting the `Response` as below.
		// Otherwise, remove this line. Only populated after
		// first call to Next(). Not safe for concurrent access.
		_ = it.Response.(*dataplexpb.SearchEntriesResponse)
	}
}

Java

Java

在試用這個範例之前，請先按照「使用用戶端程式庫的 Knowledge Catalog 快速入門導覽課程」中的 Java 設定說明操作。詳情請參閱 Knowledge Catalog Java API 參考文件。

如要向 Knowledge Catalog 進行驗證，請設定應用程式預設憑證。詳情請參閱「為本機開發環境設定驗證機制」。

import com.google.cloud.dataplex.v1.CatalogServiceClient;
import com.google.cloud.dataplex.v1.LocationName;
import com.google.cloud.dataplex.v1.SearchEntriesRequest;
import com.google.cloud.dataplex.v1.SearchEntriesResult;

public class SyncSearchEntries {

  public static void main(String[] args) throws Exception {
    syncSearchEntries();
  }

  public static void syncSearchEntries() throws Exception {
    // This snippet has been automatically generated and should be regarded as a code template only.
    // It will require modifications to work:
    // - It may require correct/in-range values for request initialization.
    // - It may require specifying regional endpoints when creating the service client as shown in
    // https://cloud.google.com/java/docs/setup#configure_endpoints_for_the_client_library
    try (CatalogServiceClient catalogServiceClient = CatalogServiceClient.create()) {
      SearchEntriesRequest request =
          SearchEntriesRequest.newBuilder()
              .setName(LocationName.of("[PROJECT]", "[LOCATION]").toString())
              .setQuery("query107944136")
              .setPageSize(883849137)
              .setPageToken("pageToken873572522")
              .setOrderBy("orderBy-1207110587")
              .setScope("scope109264468")
              .setSemanticSearch(true)
              .build();
      for (SearchEntriesResult element : catalogServiceClient.searchEntries(request).iterateAll()) {
        // doThingsWith(element);
      }
    }
  }
}

Node.js

Node.js

在試用這個範例之前，請先按照「使用用戶端程式庫的 Knowledge Catalog 快速入門導覽課程」中的 Node.js 設定說明操作。詳情請參閱 Knowledge Catalog Node.js API 參考文件。

如要向 Knowledge Catalog 進行驗證，請設定應用程式預設憑證。詳情請參閱「為本機開發環境設定驗證機制」。

/**
 * This snippet has been automatically generated and should be regarded as a code template only.
 * It will require modifications to work.
 * It may require correct/in-range values for request initialization.
 * TODO(developer): Uncomment these variables before running the sample.
 */
/**
 *  Required. The project to which the request should be attributed in the
 *  following form: `projects/{project}/locations/global`.
 */
// const name = 'abc123'
/**
 *  Required. The query against which entries in scope should be matched.
 *  The query syntax is defined in Search syntax for Dataplex Universal
 *  Catalog (https://cloud.google.com/dataplex/docs/search-syntax).
 */
// const query = 'abc123'
/**
 *  Optional. Number of results in the search page. If <=0, then defaults
 *  to 10. Max limit for page_size is 1000. Throws an invalid argument for
 *  page_size > 1000.
 */
// const pageSize = 1234
/**
 *  Optional. Page token received from a previous `SearchEntries` call. Provide
 *  this to retrieve the subsequent page.
 */
// const pageToken = 'abc123'
/**
 *  Optional. Specifies the ordering of results.
 *  Supported values are:
 *  * `relevance`
 *  * `last_modified_timestamp`
 *  * `last_modified_timestamp asc`
 */
// const orderBy = 'abc123'
/**
 *  Optional. The scope under which the search should be operating. It must
 *  either be `organizations/<org_id>` or `projects/<project_ref>`. If it is
 *  unspecified, it defaults to the organization where the project provided in
 *  `name` is located.
 */
// const scope = 'abc123'
/**
 *  Optional. Specifies whether the search should understand the meaning and
 *  intent behind the query, rather than just matching keywords.
 */
// const semanticSearch = true

// Imports the Dataplex library
const {CatalogServiceClient} = require('@google-cloud/dataplex').v1;

// Instantiates a client
const dataplexClient = new CatalogServiceClient();

async function callSearchEntries() {
  // Construct request
  const request = {
    name,
    query,
  };

  // Run request
  const iterable = dataplexClient.searchEntriesAsync(request);
  for await (const response of iterable) {
      console.log(response);
  }
}

callSearchEntries();

PHP

PHP

在試用這個範例之前，請先按照「使用用戶端程式庫的 Knowledge Catalog 快速入門導覽課程」中的 PHP 設定說明操作。詳情請參閱 Knowledge Catalog PHP API 參考文件。

如要向 Knowledge Catalog 進行驗證，請設定應用程式預設憑證。詳情請參閱「為本機開發環境設定驗證機制」。

use Google\ApiCore\ApiException;
use Google\ApiCore\PagedListResponse;
use Google\Cloud\Dataplex\V1\Client\CatalogServiceClient;
use Google\Cloud\Dataplex\V1\SearchEntriesRequest;
use Google\Cloud\Dataplex\V1\SearchEntriesResult;

/**
 * Searches for Entries matching the given query and scope.
 *
 * @param string $formattedName The project to which the request should be attributed in the
 *                              following form: `projects/{project}/locations/global`. Please see
 *                              {@see CatalogServiceClient::locationName()} for help formatting this field.
 * @param string $query         The query against which entries in scope should be matched.
 *                              The query syntax is defined in [Search syntax for Dataplex Universal
 *                              Catalog](https://cloud.google.com/dataplex/docs/search-syntax).
 */
function search_entries_sample(string $formattedName, string $query): void
{
    // Create a client.
    $catalogServiceClient = new CatalogServiceClient();

    // Prepare the request message.
    $request = (new SearchEntriesRequest())
        ->setName($formattedName)
        ->setQuery($query);

    // Call the API and handle any network failures.
    try {
        /** @var PagedListResponse $response */
        $response = $catalogServiceClient->searchEntries($request);

        /** @var SearchEntriesResult $element */
        foreach ($response as $element) {
            printf('Element data: %s' . PHP_EOL, $element->serializeToJsonString());
        }
    } catch (ApiException $ex) {
        printf('Call failed with message: %s' . PHP_EOL, $ex->getMessage());
    }
}

/**
 * Helper to execute the sample.
 *
 * This sample has been automatically generated and should be regarded as a code
 * template only. It will require modifications to work:
 *  - It may require correct/in-range values for request initialization.
 *  - It may require specifying regional endpoints when creating the service client,
 *    please see the apiEndpoint client configuration option for more details.
 */
function callSample(): void
{
    $formattedName = CatalogServiceClient::locationName('[PROJECT]', '[LOCATION]');
    $query = '[QUERY]';

    search_entries_sample($formattedName, $query);
}

Python

Python

在試用這個範例之前，請先按照「使用用戶端程式庫的 Knowledge Catalog 快速入門導覽課程」中的 Python 設定說明操作。詳情請參閱 Knowledge Catalog Python API 參考文件。

如要向 Knowledge Catalog 進行驗證，請設定應用程式預設憑證。詳情請參閱「為本機開發環境設定驗證機制」。

# This snippet has been automatically generated and should be regarded as a
# code template only.
# It will require modifications to work:
# - It may require correct/in-range values for request initialization.
# - It may require specifying regional endpoints when creating the service
#   client as shown in:
#   https://googleapis.dev/python/google-api-core/latest/client_options.html
from google.cloud import dataplex_v1


def sample_search_entries():
    # Create a client
    client = dataplex_v1.CatalogServiceClient()

    # Initialize request argument(s)
    request = dataplex_v1.SearchEntriesRequest(
        name="name_value",
        query="query_value",
    )

    # Make the request
    page_result = client.search_entries(request=request)

    # Handle the response
    for response in page_result:
        print(response)

小茹

Ruby

在試用這個範例之前，請先按照「使用用戶端程式庫的 Knowledge Catalog 快速入門導覽課程」中的 Ruby 設定說明操作。詳情請參閱 Knowledge Catalog Ruby API 參考文件。

如要向 Knowledge Catalog 進行驗證，請設定應用程式預設憑證。詳情請參閱「為本機開發環境設定驗證機制」。

require "google/cloud/dataplex/v1"

##
# Snippet for the search_entries call in the CatalogService service
#
# This snippet has been automatically generated and should be regarded as a code
# template only. It will require modifications to work:
# - It may require correct/in-range values for request initialization.
# - It may require specifying regional endpoints when creating the service
# client as shown in https://cloud.google.com/ruby/docs/reference.
#
# This is an auto-generated example demonstrating basic usage of
# Google::Cloud::Dataplex::V1::CatalogService::Client#search_entries.
#
def search_entries
  # Create a client object. The client can be reused for multiple calls.
  client = Google::Cloud::Dataplex::V1::CatalogService::Client.new

  # Create a request. To set request fields, pass in keyword arguments.
  request = Google::Cloud::Dataplex::V1::SearchEntriesRequest.new

  # Call the search_entries method.
  result = client.search_entries request

  # The returned object is of type Gapic::PagedEnumerable. You can iterate
  # over elements, and API calls will be issued to fetch pages as needed.
  result.each do |item|
    # Each element is of type ::Google::Cloud::Dataplex::V1::SearchEntriesResult.
    p item
  end
end

REST

如要搜尋資料資產，請使用 searchEntries 方法，並將 semanticSearch 參數設為 true。

POST https://dataplex.googleapis.com/v1/projects/PROJECT_ID/locations/LOCATION:searchEntries?query=foo&semanticSearch=true

更改下列內容：

• PROJECT_ID： Google Cloud 專案的 ID
• LOCATION：專案所在的區域 (例如 us-central1)

查看搜尋傳回的資料資產詳細資料

控制台

使用 Knowledge Catalog 搜尋功能查看資料資產的詳細資料。

1. 在 Knowledge Catalog 搜尋資料資產。

2. 在搜尋結果中，按一下要查看詳細資料的資料資產。

   項目詳細資料頁面隨即開啟。這個頁面包含下列部分：

   • 項目詳細資料：包括項目類型、系統、平台、完整名稱、建立時間、上次修改時間、說明和管理員等資訊。
   • 總覽：項目的總覽 (如有)。
   • 切面：為項目定義的必要和選用切面。詳情請參閱「面向類別」。

gcloud

如要查看資料資產的詳細資料，請使用 gcloud dataplex entries lookup 指令：

gcloud dataplex entries lookup ENTRY_ID \
  --entry-group=ENTRY_GROUP_ID \
  --location=LOCATION \
  --project=PROJECT_ID

更改下列內容：

• ENTRY_ID：項目的 ID
• ENTRY_GROUP_ID：項目群組的 ID
• LOCATION：專案所在的區域
• PROJECT_ID： Google Cloud 專案的 ID

C#

C#

在試用這個範例之前，請先按照「使用用戶端程式庫的 Knowledge Catalog 快速入門導覽課程」中的 C# 設定說明操作。詳情請參閱 Knowledge Catalog C# API 參考文件。

如要向 Knowledge Catalog 進行驗證，請設定應用程式預設憑證。詳情請參閱「為本機開發環境設定驗證機制」。

using Google.Cloud.Dataplex.V1;

public sealed partial class GeneratedCatalogServiceClientSnippets
{
    /// <summary>Snippet for LookupEntry</summary>
    /// <remarks>
    /// This snippet has been automatically generated and should be regarded as a code template only.
    /// It will require modifications to work:
    /// - It may require correct/in-range values for request initialization.
    /// - It may require specifying regional endpoints when creating the service client as shown in
    ///   https://cloud.google.com/dotnet/docs/reference/help/client-configuration#endpoint.
    /// </remarks>
    public void LookupEntryRequestObject()
    {
        // Create client
        CatalogServiceClient catalogServiceClient = CatalogServiceClient.Create();
        // Initialize request argument(s)
        LookupEntryRequest request = new LookupEntryRequest
        {
            Name = "",
            View = EntryView.Unspecified,
            AspectTypes = { "", },
            Paths = { "", },
            EntryAsEntryName = EntryName.FromProjectLocationEntryGroupEntry("[PROJECT]", "[LOCATION]", "[ENTRY_GROUP]", "[ENTRY]"),
        };
        // Make the request
        Entry response = catalogServiceClient.LookupEntry(request);
    }
}

Go

Go

在試用這個範例之前，請先按照「使用用戶端程式庫的 Knowledge Catalog 快速入門導覽課程」中的 Go 設定說明操作。詳情請參閱 Knowledge Catalog Go API 參考文件。

如要向 Knowledge Catalog 進行驗證，請設定應用程式預設憑證。詳情請參閱「為本機開發環境設定驗證機制」。

//go:build examples

package main

import (
	"context"

	dataplex "cloud.google.com/go/dataplex/apiv1"
	dataplexpb "cloud.google.com/go/dataplex/apiv1/dataplexpb"
)

func main() {
	ctx := context.Background()
	// This snippet has been automatically generated and should be regarded as a code template only.
	// It will require modifications to work:
	// - It may require correct/in-range values for request initialization.
	// - It may require specifying regional endpoints when creating the service client as shown in:
	//   https://pkg.go.dev/cloud.google.com/go#hdr-Client_Options
	c, err := dataplex.NewCatalogClient(ctx)
	if err != nil {
		// TODO: Handle error.
	}
	defer c.Close()

	req := &dataplexpb.LookupEntryRequest{
		// TODO: Fill request struct fields.
		// See https://pkg.go.dev/cloud.google.com/go/dataplex/apiv1/dataplexpb#LookupEntryRequest.
	}
	resp, err := c.LookupEntry(ctx, req)
	if err != nil {
		// TODO: Handle error.
	}
	// TODO: Use resp.
	_ = resp
}

Java

Java

在試用這個範例之前，請先按照「使用用戶端程式庫的 Knowledge Catalog 快速入門導覽課程」中的 Java 設定說明操作。詳情請參閱 Knowledge Catalog Java API 參考文件。

如要向 Knowledge Catalog 進行驗證，請設定應用程式預設憑證。詳情請參閱「為本機開發環境設定驗證機制」。

import com.google.cloud.dataplex.v1.CatalogServiceClient;
import com.google.cloud.dataplex.v1.Entry;
import com.google.cloud.dataplex.v1.EntryName;
import com.google.cloud.dataplex.v1.EntryView;
import com.google.cloud.dataplex.v1.LookupEntryRequest;
import java.util.ArrayList;

public class SyncLookupEntry {

  public static void main(String[] args) throws Exception {
    syncLookupEntry();
  }

  public static void syncLookupEntry() throws Exception {
    // This snippet has been automatically generated and should be regarded as a code template only.
    // It will require modifications to work:
    // - It may require correct/in-range values for request initialization.
    // - It may require specifying regional endpoints when creating the service client as shown in
    // https://cloud.google.com/java/docs/setup#configure_endpoints_for_the_client_library
    try (CatalogServiceClient catalogServiceClient = CatalogServiceClient.create()) {
      LookupEntryRequest request =
          LookupEntryRequest.newBuilder()
              .setName("name3373707")
              .setView(EntryView.forNumber(0))
              .addAllAspectTypes(new ArrayList<String>())
              .addAllPaths(new ArrayList<String>())
              .setEntry(
                  EntryName.of("[PROJECT]", "[LOCATION]", "[ENTRY_GROUP]", "[ENTRY]").toString())
              .build();
      Entry response = catalogServiceClient.lookupEntry(request);
    }
  }
}

Node.js

Node.js

在試用這個範例之前，請先按照「使用用戶端程式庫的 Knowledge Catalog 快速入門導覽課程」中的 Node.js 設定說明操作。詳情請參閱 Knowledge Catalog Node.js API 參考文件。

如要向 Knowledge Catalog 進行驗證，請設定應用程式預設憑證。詳情請參閱「為本機開發環境設定驗證機制」。

/**
 * This snippet has been automatically generated and should be regarded as a code template only.
 * It will require modifications to work.
 * It may require correct/in-range values for request initialization.
 * TODO(developer): Uncomment these variables before running the sample.
 */
/**
 *  Required. The project to which the request should be attributed in the
 *  following form: `projects/{project}/locations/{location}`.
 */
// const name = 'abc123'
/**
 *  Optional. View to control which parts of an entry the service should
 *  return.
 *  **Please check the limitations on returned aspects in the Entry view
 *  documentation. Amount of returned aspects depends on the selected Entry
 *  View.**
 */
// const view = {}
/**
 *  Optional. Limits the aspects returned to the provided aspect types.
 *  It only works for CUSTOM view.
 */
// const aspectTypes = ['abc','def']
/**
 *  Optional. Limits the aspects returned to those associated with the provided
 *  paths within the Entry. It only works for CUSTOM view.
 */
// const paths = ['abc','def']
/**
 *  Required. The resource name of the Entry:
 *  `projects/{project}/locations/{location}/entryGroups/{entry_group}/entries/{entry}`.
 */
// const entry = 'abc123'

// Imports the Dataplex library
const {CatalogServiceClient} = require('@google-cloud/dataplex').v1;

// Instantiates a client
const dataplexClient = new CatalogServiceClient();

async function callLookupEntry() {
  // Construct request
  const request = {
    name,
    entry,
  };

  // Run request
  const response = await dataplexClient.lookupEntry(request);
  console.log(response);
}

callLookupEntry();

PHP

PHP

在試用這個範例之前，請先按照「使用用戶端程式庫的 Knowledge Catalog 快速入門導覽課程」中的 PHP 設定說明操作。詳情請參閱 Knowledge Catalog PHP API 參考文件。

如要向 Knowledge Catalog 進行驗證，請設定應用程式預設憑證。詳情請參閱「為本機開發環境設定驗證機制」。

use Google\ApiCore\ApiException;
use Google\Cloud\Dataplex\V1\Client\CatalogServiceClient;
use Google\Cloud\Dataplex\V1\Entry;
use Google\Cloud\Dataplex\V1\LookupEntryRequest;

/**
 * Looks up an entry by name using the permission on the source system.
 *
 * @param string $name           The project to which the request should be attributed in the
 *                               following form: `projects/{project}/locations/{location}`.
 * @param string $formattedEntry The resource name of the Entry:
 *                               `projects/{project}/locations/{location}/entryGroups/{entry_group}/entries/{entry}`. Please see
 *                               {@see CatalogServiceClient::entryName()} for help formatting this field.
 */
function lookup_entry_sample(string $name, string $formattedEntry): void
{
    // Create a client.
    $catalogServiceClient = new CatalogServiceClient();

    // Prepare the request message.
    $request = (new LookupEntryRequest())
        ->setName($name)
        ->setEntry($formattedEntry);

    // Call the API and handle any network failures.
    try {
        /** @var Entry $response */
        $response = $catalogServiceClient->lookupEntry($request);
        printf('Response data: %s' . PHP_EOL, $response->serializeToJsonString());
    } catch (ApiException $ex) {
        printf('Call failed with message: %s' . PHP_EOL, $ex->getMessage());
    }
}

/**
 * Helper to execute the sample.
 *
 * This sample has been automatically generated and should be regarded as a code
 * template only. It will require modifications to work:
 *  - It may require correct/in-range values for request initialization.
 *  - It may require specifying regional endpoints when creating the service client,
 *    please see the apiEndpoint client configuration option for more details.
 */
function callSample(): void
{
    $name = '[NAME]';
    $formattedEntry = CatalogServiceClient::entryName(
        '[PROJECT]',
        '[LOCATION]',
        '[ENTRY_GROUP]',
        '[ENTRY]'
    );

    lookup_entry_sample($name, $formattedEntry);
}

Python

Python

在試用這個範例之前，請先按照「使用用戶端程式庫的 Knowledge Catalog 快速入門導覽課程」中的 Python 設定說明操作。詳情請參閱 Knowledge Catalog Python API 參考文件。

如要向 Knowledge Catalog 進行驗證，請設定應用程式預設憑證。詳情請參閱「為本機開發環境設定驗證機制」。

# This snippet has been automatically generated and should be regarded as a
# code template only.
# It will require modifications to work:
# - It may require correct/in-range values for request initialization.
# - It may require specifying regional endpoints when creating the service
#   client as shown in:
#   https://googleapis.dev/python/google-api-core/latest/client_options.html
from google.cloud import dataplex_v1


def sample_lookup_entry():
    # Create a client
    client = dataplex_v1.CatalogServiceClient()

    # Initialize request argument(s)
    request = dataplex_v1.LookupEntryRequest(
        name="name_value",
        entry="entry_value",
    )

    # Make the request
    response = client.lookup_entry(request=request)

    # Handle the response
    print(response)

小茹

Ruby

在試用這個範例之前，請先按照「使用用戶端程式庫的 Knowledge Catalog 快速入門導覽課程」中的 Ruby 設定說明操作。詳情請參閱 Knowledge Catalog Ruby API 參考文件。

如要向 Knowledge Catalog 進行驗證，請設定應用程式預設憑證。詳情請參閱「為本機開發環境設定驗證機制」。

require "google/cloud/dataplex/v1"

##
# Snippet for the lookup_entry call in the CatalogService service
#
# This snippet has been automatically generated and should be regarded as a code
# template only. It will require modifications to work:
# - It may require correct/in-range values for request initialization.
# - It may require specifying regional endpoints when creating the service
# client as shown in https://cloud.google.com/ruby/docs/reference.
#
# This is an auto-generated example demonstrating basic usage of
# Google::Cloud::Dataplex::V1::CatalogService::Client#lookup_entry.
#
def lookup_entry
  # Create a client object. The client can be reused for multiple calls.
  client = Google::Cloud::Dataplex::V1::CatalogService::Client.new

  # Create a request. To set request fields, pass in keyword arguments.
  request = Google::Cloud::Dataplex::V1::LookupEntryRequest.new

  # Call the lookup_entry method.
  result = client.lookup_entry request

  # The returned object is of type Google::Cloud::Dataplex::V1::Entry.
  p result
end

REST

如要查看資料資產的詳細資料，請使用 lookupEntry 方法。

限制

搜尋功能有下列限制：

• 公開資料資產不在自然語言搜尋的範圍內。
• 附加至項目連結的切面不在自然語言搜尋的範圍內。

後續步驟

• 瞭解 Knowledge Catalog 的搜尋語法。
• 進一步瞭解 Knowledge Catalog 中的中繼資料。
• 瞭解如何使用切面，為項目和項目連結加入中繼資料。
• 瞭解如何管理項目及擷取自訂來源。
• 參考 Knowledge Catalog 應用實例。
• 運用 Knowledge Catalog 探索代理，回答複雜的自然語言查詢。