Pour des fonctionnalités similaires à celles d'Amazon Timestream pour, pensez à Amazon Timestream LiveAnalytics pour InfluxDB. Il permet une ingestion simplifiée des données et des temps de réponse aux requêtes à un chiffre en millisecondes pour des analyses en temps réel. Pour en savoir plus, [cliquez ici](https://docs.aws.amazon.com//timestream/latest/developerguide/timestream-for-influxdb.html).

Les traductions sont fournies par des outils de traduction automatique. En cas de conflit entre le contenu d'une traduction et celui de la version originale en anglais, la version anglaise prévaudra.

# Mettre à jour la base
<a name="code-samples.update-db"></a>

Vous pouvez utiliser les extraits de code suivants pour mettre à jour vos bases de données.

**Note**  
Ces extraits de code sont basés sur des exemples complets d'applications sur. [GitHub](https://github.com/awslabs/amazon-timestream-tools/blob/master/sample_apps) Pour plus d'informations sur la façon de démarrer avec les exemples d'applications, consultez[Exemple d’application](sample-apps.md).

------
#### [  Java  ]

```
    public void updateDatabase(String kmsId) {
        System.out.println("Updating kmsId to " + kmsId);
        UpdateDatabaseRequest request = new UpdateDatabaseRequest();
        request.setDatabaseName(DATABASE_NAME);
        request.setKmsKeyId(kmsId);
        try {
            UpdateDatabaseResult result = amazonTimestreamWrite.updateDatabase(request);
            System.out.println("Update Database complete");
        } catch (final ValidationException e) {
            System.out.println("Update database failed:");
            e.printStackTrace();
        } catch (final ResourceNotFoundException e) {
            System.out.println("Database " + DATABASE_NAME + " doesn't exist = " + e);
        } catch (final Exception e) {
            System.out.println("Could not update Database " + DATABASE_NAME + " = " + e);
            throw e;
        }
    }
```

------
#### [  Java v2  ]

```
    public void updateDatabase(String kmsKeyId) {

        if (kmsKeyId == null) {
            System.out.println("Skipping UpdateDatabase because KmsKeyId was not given");
            return;
        }

        System.out.println("Updating database");

        UpdateDatabaseRequest request = UpdateDatabaseRequest.builder()
                .databaseName(DATABASE_NAME)
                .kmsKeyId(kmsKeyId)
                .build();
        try {
            timestreamWriteClient.updateDatabase(request);
            System.out.println("Database [" + DATABASE_NAME + "] updated successfully with kmsKeyId " + kmsKeyId);
        } catch (ResourceNotFoundException e) {
            System.out.println("Database [" + DATABASE_NAME + "] does not exist. Skipping UpdateDatabase");
        } catch (Exception e) {
            System.out.println("UpdateDatabase failed: " + e);
        }
    }
```

------
#### [  Go  ]

```
// Update Database.
        updateDatabaseInput := &timestreamwrite.UpdateDatabaseInput {
            DatabaseName: aws.String(*databaseName),
            KmsKeyId: aws.String(*kmsKeyId),
        }

        updateDatabaseOutput, err := writeSvc.UpdateDatabase(updateDatabaseInput)

        if err != nil {
            fmt.Println("Error:")
            fmt.Println(err)
        } else {
            fmt.Println("Update database is successful, below is the output:")
            fmt.Println(updateDatabaseOutput)
        }
```

------
#### [  Python  ]

```
    def update_database(self, kms_id):
        print("Updating database")
        try:
            result = self.client.update_database(DatabaseName=Constant.DATABASE_NAME, KmsKeyId=kms_id)
            print("Database [%s] was updated to use kms [%s] successfully" % (Constant.DATABASE_NAME,
                                                                              result['Database']['KmsKeyId']))
        except self.client.exceptions.ResourceNotFoundException:
            print("Database doesn't exist")
        except Exception as err:
            print("Update database failed:", err)
```

------
#### [  Node.js  ]

L'extrait de code suivant utilise le AWS SDK pour la version 3. JavaScript Pour plus d'informations sur l'installation du client et son utilisation, consultez [Timestream Write Client - AWS SDK](https://docs.aws.amazon.com/AWSJavaScriptSDK/v3/latest/clients/client-timestream-write/index.html) pour v3. JavaScript 

Voir également [Classe UpdateDatabaseCommand](https://docs.aws.amazon.com/AWSJavaScriptSDK/v3/latest/clients/client-timestream-write/classes/updatedatabasecommand.html) et [UpdateDatabase](https://docs.aws.amazon.com/timestream/latest/developerguide/API_UpdateDatabase.html).

```
import { TimestreamWriteClient, UpdateDatabaseCommand } from "@aws-sdk/client-timestream-write";
const writeClient = new TimestreamWriteClient({ region: "us-east-1" });
let updatedKmsKeyId = "<updatedKmsKeyId>";

const params = {
    DatabaseName: "testDbFromNode",
    KmsKeyId: updatedKmsKeyId
};

const command = new UpdateDatabaseCommand(params);

try {
    const data = await writeClient.send(command);
    console.log(`Database ${data.Database.DatabaseName} updated kmsKeyId to ${updatedKmsKeyId}`);
} catch (error) {
    if (error.code === 'ResourceNotFoundException') {
        console.log("Database doesn't exist.");
    } else {
        console.log("Update database failed.", error);
    }
}
```

L'extrait de code suivant utilise le AWS SDK pour JavaScript le style V2. Il est basé sur l'exemple d'application disponible sur [Node.js, un exemple d'Amazon Timestream LiveAnalytics ](https://github.com/awslabs/amazon-timestream-tools/tree/mainline/sample_apps/js) pour une application sur. GitHub

```
async function updateDatabase(updatedKmsKeyId) { 
 
    if (updatedKmsKeyId === undefined) { 
        console.log("Skipping UpdateDatabase; KmsKeyId was not given"); 
        return; 
    } 
    console.log("Updating Database"); 
    const params = { 
        DatabaseName: constants.DATABASE_NAME, 
        KmsKeyId: updatedKmsKeyId 
    } 
 
    const promise = writeClient.updateDatabase(params).promise(); 
 
    await promise.then( 
        (data) => { 
            console.log(`Database ${data.Database.DatabaseName} updated kmsKeyId to ${updatedKmsKeyId}`); 
        }, 
        (err) => { 
            if (err.code === 'ResourceNotFoundException') { 
                console.log("Database doesn't exist."); 
            } else { 
                console.log("Update database failed.", err); 
            } 
        } 
    ); 
}
```

------
#### [  .NET  ]

```
        public async Task UpdateDatabase(String updatedKmsKeyId)
        {
            Console.WriteLine("Updating Database");

            try
            {
                var updateDatabaseRequest = new UpdateDatabaseRequest
                {
                    DatabaseName = Constants.DATABASE_NAME,
                    KmsKeyId = updatedKmsKeyId
                };
                UpdateDatabaseResponse response = await writeClient.UpdateDatabaseAsync(updateDatabaseRequest);
                Console.WriteLine($"Database {Constants.DATABASE_NAME} updated with KmsKeyId {updatedKmsKeyId}");
            }
            catch (ResourceNotFoundException)
            {
                Console.WriteLine("Database does not exist.");
            }
            catch (Exception e)
            {
                Console.WriteLine("Update database failed: " + e.ToString());
            }

        }
                
        private void PrintDatabases(List<Database> databases)
        {
            foreach (Database database in databases)
                Console.WriteLine($"Database:{database.DatabaseName}");
        }
```

------