Criar banco de dados

É possível usar os seguintes trechos de código para criar um banco de dados.

nota

Esses trechos de código são baseados em aplicativos de amostra completos no GitHub. Para obter mais informações sobre como criar aplicativos de amostra, consulte Aplicação de exemplo.

Java

   public void createDatabase() {
        System.out.println("Creating database");
        CreateDatabaseRequest request = new CreateDatabaseRequest();
        request.setDatabaseName(DATABASE_NAME);
        try {
            amazonTimestreamWrite.createDatabase(request);
            System.out.println("Database [" + DATABASE_NAME + "] created successfully");
        } catch (ConflictException e) {
            System.out.println("Database [" + DATABASE_NAME + "] exists. Skipping database creation");
        }
    }

Java v2

    public void createDatabase() {
        System.out.println("Creating database");
        CreateDatabaseRequest request = CreateDatabaseRequest.builder().databaseName(DATABASE_NAME).build();
        try {
            timestreamWriteClient.createDatabase(request);
            System.out.println("Database [" + DATABASE_NAME + "] created successfully");
        } catch (ConflictException e) {
            System.out.println("Database [" + DATABASE_NAME + "] exists. Skipping database creation");
        }
    }

Go

// Create database.
    createDatabaseInput := &timestreamwrite.CreateDatabaseInput{
        DatabaseName: aws.String(*databaseName),
    }

    _, err = writeSvc.CreateDatabase(createDatabaseInput)

    if err != nil {
        fmt.Println("Error:")
        fmt.Println(err)
    } else {
        fmt.Println("Database successfully created")
    }

    fmt.Println("Describing the database, hit enter to continue")

Python

    def create_database(self):
        print("Creating Database")
        try:
            self.client.create_database(DatabaseName=Constant.DATABASE_NAME)
            print("Database [%s] created successfully." % Constant.DATABASE_NAME)
        except self.client.exceptions.ConflictException:
            print("Database [%s] exists. Skipping database creation" % Constant.DATABASE_NAME)
        except Exception as err:
            print("Create database failed:", err)

Node.js

O trecho de código a seguir usa o SDK AWS para o JavaScript v3. Para obter mais informações sobre como instalar o cliente e o uso, consulte Timestream Write Client - AWS SDK para JavaScript v3.

Consulte também Class CreateDatabaseCommand e CreateDatabase.

import { TimestreamWriteClient, CreateDatabaseCommand } from "@aws-sdk/client-timestream-write";
const writeClient = new TimestreamWriteClient({ region: "us-east-1" });

const params = {
    DatabaseName: "testDbFromNode"
};

const command = new CreateDatabaseCommand(params);

try {
    const data = await writeClient.send(command);
    console.log(`Database ${data.Database.DatabaseName} created successfully`);
} catch (error) {
    if (error.code === 'ConflictException') {
        console.log(`Database ${params.DatabaseName} already exists. Skipping creation.`);
    } else {
        console.log("Error creating database", error);
    }
}

O trecho de código a seguir usa o SDK AWS para o estilo for JavaScript V2. Ele se baseia no aplicativo de amostra em Node.js, exemplo do aplicativo Amazon Timestream para LiveAnalytics no GitHub.

async function createDatabase() {
    console.log("Creating Database");
    const params = {
        DatabaseName: constants.DATABASE_NAME
    };
 
    const promise = writeClient.createDatabase(params).promise();
 
    await promise.then(
        (data) => {
            console.log(`Database ${data.Database.DatabaseName} created successfully`);
        },
        (err) => {
            if (err.code === 'ConflictException') {
                console.log(`Database ${params.DatabaseName} already exists. Skipping creation.`);
            } else {
                console.log("Error creating database", err);
            }
        }
    );
}

.NET

        public async Task CreateDatabase()
        {
            Console.WriteLine("Creating Database");

            try
            {
                var createDatabaseRequest = new CreateDatabaseRequest
                {
                    DatabaseName = Constants.DATABASE_NAME
                };
                CreateDatabaseResponse response = await writeClient.CreateDatabaseAsync(createDatabaseRequest);
                Console.WriteLine($"Database {Constants.DATABASE_NAME} created");
            }
            catch (ConflictException)
            {
                Console.WriteLine("Database already exists.");
            }
            catch (Exception e)
            {
                Console.WriteLine("Create database failed:" + e.ToString());
            }

        }