Amazon DynamoDB
入门指南 (API Version 2012-08-10)
AWS 服务或AWS文档中描述的功能,可能因地区/位置而异。点 击 Getting Started with Amazon AWS to see specific differences applicable to the China (Beijing) Region.

步骤 1:创建表

在此步骤中,您将创建一个名为 Movies 的表。表的主键由以下属性组成:

  • year - 分区键。AttributeTypeN,表示数字。

  • title - 排序键。AttributeTypeS,表示字符串。

  1. 将以下程序复制到名为 MoviesCreateTable.html 的文件中。

    Copy
    <html> <head> <script src="https://sdk.amazonaws.com/js/aws-sdk-2.7.16.min.js"></script> <script> AWS.config.update({ region: "us-west-2", endpoint: 'http://localhost:8000', // accessKeyId default can be used while using the downloadable version of DynamoDB. // For security reasons, do not store AWS Credentials in your files. Use Amazon Cognito instead. accessKeyId: "fakeMyKeyId", // secretAccessKey default can be used while using the downloadable version of DynamoDB. // For security reasons, do not store AWS Credentials in your files. Use Amazon Cognito instead. secretAccessKey: "fakeSecretAccessKey" }); var dynamodb = new AWS.DynamoDB(); function createMovies() { var params = { TableName : "Movies", KeySchema: [ { AttributeName: "year", KeyType: "HASH"}, { AttributeName: "title", KeyType: "RANGE" } ], AttributeDefinitions: [ { AttributeName: "year", AttributeType: "N" }, { AttributeName: "title", AttributeType: "S" } ], ProvisionedThroughput: { ReadCapacityUnits: 5, WriteCapacityUnits: 5 } }; dynamodb.createTable(params, function(err, data) { if (err) { document.getElementById('textarea').innerHTML = "Unable to create table: " + "\n" + JSON.stringify(err, undefined, 2); } else { document.getElementById('textarea').innerHTML = "Created table: " + "\n" + JSON.stringify(data, undefined, 2); } }); } </script> </head> <body> <input id="createTableButton" type="button" value="Create Table" onclick="createMovies();" /> <br><br> <textarea readonly id= "textarea" style="width:400px; height:800px"></textarea> </body> </html>

    注意

    • 设置终端节点以指示您正在计算机上的 DynamoDB 中创建表。

    • createMovies 函数中,您需要指定表名称、主键属性及其数据类型。

    • ProvisionedThroughput 参数是必填项;但 DynamoDB 的可下载版本将忽略此参数。(预置的吞吐量不在此教程的讨论范围内。)

  2. 在您的浏览器上打开 MoviesCreateTable.html 文件。

  3. 选择 Create Table

要了解有关管理表的更多信息,请参阅 Amazon DynamoDB 开发人员指南 中的处理表