Menyalin tabel

Menyalin tabel dengan kunci enkripsi yang dikelola pelanggan.

Jelajahi lebih lanjut

Untuk dokumentasi mendetail yang menyertakan contoh kode ini, lihat artikel berikut:

• Kunci Cloud KMS yang dikelola pelanggan

Contoh kode

Go

Sebelum mencoba contoh ini, ikuti petunjuk penyiapan Go di Panduan memulai BigQuery menggunakan library klien. Untuk mengetahui informasi selengkapnya, lihat Dokumentasi referensi BigQuery Go API.

Untuk melakukan autentikasi ke BigQuery, siapkan Kredensial Default Aplikasi. Untuk mengetahui informasi selengkapnya, lihat Menyiapkan autentikasi untuk library klien.

import (
	"context"
	"fmt"

	"cloud.google.com/go/bigquery"
)

// copyTableWithCMEK demonstrates creating a copy of a table and ensuring the copied data is
// protected with a customer managed encryption key.
func copyTableWithCMEK(projectID, datasetID, tableID string) error {
	// projectID := "my-project-id"
	// datasetID := "mydataset"
	// tableID := "mytable"
	ctx := context.Background()
	client, err := bigquery.NewClient(ctx, projectID)
	if err != nil {
		return fmt.Errorf("bigquery.NewClient: %w", err)
	}
	defer client.Close()

	srcTable := client.DatasetInProject("bigquery-public-data", "samples").Table("shakespeare")
	copier := client.Dataset(datasetID).Table(tableID).CopierFrom(srcTable)
	copier.DestinationEncryptionConfig = &bigquery.EncryptionConfig{
		// TODO: Replace this key with a key you have created in Cloud KMS.
		KMSKeyName: "projects/cloud-samples-tests/locations/us-central1/keyRings/test/cryptoKeys/test",
	}
	job, err := copier.Run(ctx)
	if err != nil {
		return err
	}
	status, err := job.Wait(ctx)
	if err != nil {
		return err
	}
	if err := status.Err(); err != nil {
		return err
	}
	return nil
}

Java

Sebelum mencoba contoh ini, ikuti petunjuk penyiapan Java di Panduan memulai BigQuery menggunakan library klien. Untuk mengetahui informasi selengkapnya, lihat Dokumentasi referensi BigQuery Java API.

Untuk melakukan autentikasi ke BigQuery, siapkan Kredensial Default Aplikasi. Untuk mengetahui informasi selengkapnya, lihat Menyiapkan autentikasi untuk library klien.

import com.google.cloud.bigquery.BigQuery;
import com.google.cloud.bigquery.BigQueryException;
import com.google.cloud.bigquery.BigQueryOptions;
import com.google.cloud.bigquery.CopyJobConfiguration;
import com.google.cloud.bigquery.EncryptionConfiguration;
import com.google.cloud.bigquery.Job;
import com.google.cloud.bigquery.JobInfo;
import com.google.cloud.bigquery.TableId;

// Sample to copy a cmek table
public class CopyTableCmek {

  public static void main(String[] args) {
    // TODO(developer): Replace these variables before running the sample.
    String destinationDatasetName = "MY_DESTINATION_DATASET_NAME";
    String destinationTableId = "MY_DESTINATION_TABLE_NAME";
    String sourceDatasetName = "MY_SOURCE_DATASET_NAME";
    String sourceTableId = "MY_SOURCE_TABLE_NAME";
    String kmsKeyName = "MY_KMS_KEY_NAME";
    EncryptionConfiguration encryption =
        EncryptionConfiguration.newBuilder().setKmsKeyName(kmsKeyName).build();
    copyTableCmek(
        sourceDatasetName, sourceTableId, destinationDatasetName, destinationTableId, encryption);
  }

  public static void copyTableCmek(
      String sourceDatasetName,
      String sourceTableId,
      String destinationDatasetName,
      String destinationTableId,
      EncryptionConfiguration encryption) {
    try {
      // Initialize client that will be used to send requests. This client only needs to be created
      // once, and can be reused for multiple requests.
      BigQuery bigquery = BigQueryOptions.getDefaultInstance().getService();

      TableId sourceTable = TableId.of(sourceDatasetName, sourceTableId);
      TableId destinationTable = TableId.of(destinationDatasetName, destinationTableId);

      // For more information on CopyJobConfiguration see:
      // https://googleapis.dev/java/google-cloud-clients/latest/com/google/cloud/bigquery/JobConfiguration.html
      CopyJobConfiguration configuration =
          CopyJobConfiguration.newBuilder(destinationTable, sourceTable)
              .setDestinationEncryptionConfiguration(encryption)
              .build();

      // For more information on Job see:
      // https://googleapis.dev/java/google-cloud-clients/latest/index.html?com/google/cloud/bigquery/package-summary.html
      Job job = bigquery.create(JobInfo.of(configuration));

      // Blocks until this job completes its execution, either failing or succeeding.
      Job completedJob = job.waitFor();
      if (completedJob == null) {
        System.out.println("Job not executed since it no longer exists.");
        return;
      } else if (completedJob.getStatus().getError() != null) {
        System.out.println(
            "BigQuery was unable to copy table due to an error: \n" + job.getStatus().getError());
        return;
      }
      System.out.println("Table cmek copied successfully.");
    } catch (BigQueryException | InterruptedException e) {
      System.out.println("Table cmek copying job was interrupted. \n" + e.toString());
    }
  }
}

Python

Sebelum mencoba contoh ini, ikuti petunjuk penyiapan Python di Panduan memulai BigQuery menggunakan library klien. Untuk mengetahui informasi selengkapnya, lihat Dokumentasi referensi BigQuery Python API.

Untuk melakukan autentikasi ke BigQuery, siapkan Kredensial Default Aplikasi. Untuk mengetahui informasi selengkapnya, lihat Menyiapkan autentikasi untuk library klien.

from google.cloud import bigquery

# Construct a BigQuery client object.
client = bigquery.Client()

# TODO(developer): Set dest_table_id to the ID of the destination table.
# dest_table_id = "your-project.your_dataset.your_table_name"

# TODO(developer): Set orig_table_id to the ID of the original table.
# orig_table_id = "your-project.your_dataset.your_table_name"

# Set the encryption key to use for the destination.
# TODO(developer): Replace this key with a key you have created in KMS.
# kms_key_name = "projects/{}/locations/{}/keyRings/{}/cryptoKeys/{}".format(
#     your-project, location, your-ring, your-key
# )

job_config = bigquery.CopyJobConfig(
    destination_encryption_configuration=bigquery.EncryptionConfiguration(
        kms_key_name=kms_key_name
    )
)
job = client.copy_table(orig_table_id, dest_table_id, job_config=job_config)
job.result()  # Wait for the job to complete.

dest_table = client.get_table(dest_table_id)  # Make an API request.
if dest_table.encryption_configuration.kms_key_name == kms_key_name:
    print("A copy of the table created")

Langkah selanjutnya

Untuk menelusuri dan memfilter contoh kode untuk produk Google Cloud lainnya, lihat browser contoh Google Cloud.