Datenbank erstellen

Sie können die folgenden Codefragmente verwenden, um eine Datenbank zu erstellen.

Anmerkung

Diese Codefragmente basieren auf vollständigen Beispielanwendungen auf. GitHub Weitere Informationen zu den ersten Schritten mit den Beispielanwendungen finden Sie unter. Beispielanwendung

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

Im folgenden Codeausschnitt wird AWS SDK für JavaScript Version 3 verwendet. Weitere Informationen zur Installation und Verwendung des Clients finden Sie unter Timestream Write Client — AWS SDK for v3. JavaScript

Siehe auch Klasse CreateDatabaseCommand und 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);
    }
}

Das folgende Snippet verwendet das AWS SDK für den JavaScript V2-Stil. Es basiert auf der Beispielanwendung unter Node.js Beispiel Amazon Timestream für die LiveAnalytics Anwendung auf 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());
            }

        }