테이블 설명 - Amazon Timestream

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테이블 설명

다음 코드 조각을 사용하여 테이블의 속성에 대한 정보를 가져올 수 있습니다.

참고

이러한 코드 조각은 의 전체 샘플 애플리케이션을 기반으로 합니다GitHub. 샘플 애플리케이션을 시작하는 방법에 대한 자세한 내용은 섹션을 참조하세요샘플 애플리케이션.

Java 
    public void describeTable() {
        System.out.println("Describing table");
        final DescribeTableRequest describeTableRequest = new DescribeTableRequest();
        describeTableRequest.setDatabaseName(DATABASE_NAME);
        describeTableRequest.setTableName(TABLE_NAME);
        try {
            DescribeTableResult result = amazonTimestreamWrite.describeTable(describeTableRequest);
            String tableId = result.getTable().getArn();
            System.out.println("Table " + TABLE_NAME + " has id " + tableId);
        } catch (final Exception e) {
            System.out.println("Table " + TABLE_NAME + " doesn't exist = " + e);
            throw e;
        }
    }
Java v2 
    public void describeTable() {
        System.out.println("Describing table");
        final DescribeTableRequest describeTableRequest = DescribeTableRequest.builder()
                .databaseName(DATABASE_NAME).tableName(TABLE_NAME).build();
        try {
            DescribeTableResponse response = timestreamWriteClient.describeTable(describeTableRequest);
            String tableId = response.table().arn();
            System.out.println("Table " + TABLE_NAME + " has id " + tableId);
        } catch (final Exception e) {
            System.out.println("Table " + TABLE_NAME + " doesn't exist = " + e);
            throw e;
        }
    }
Go 
// Describe table.
    describeTableInput := &timestreamwrite.DescribeTableInput{
        DatabaseName: aws.String(*databaseName),
        TableName:    aws.String(*tableName),
    }
    describeTableOutput, err := writeSvc.DescribeTable(describeTableInput)

    if err != nil {
        fmt.Println("Error:")
        fmt.Println(err)
    } else {
        fmt.Println("Describe table is successful, below is the output:")
        fmt.Println(describeTableOutput)
    }
Python 
    def describe_table(self):
        print("Describing table")
        try:
            result = self.client.describe_table(DatabaseName=Constant.DATABASE_NAME, TableName=Constant.TABLE_NAME)
            print("Table [%s] has id [%s]" % (Constant.TABLE_NAME, result['Table']['Arn']))
        except self.client.exceptions.ResourceNotFoundException:
            print("Table doesn't exist")
        except Exception as err:
            print("Describe table failed:", err)
Node.js

다음 조각은 JavaScript v3에 를 사용합니다 AWS SDK. 클라이언트를 설치하는 방법과 사용량에 대한 자세한 내용은 JavaScript v3SDK용 Timestream Write Client - AWS를 참조하세요.

클래스 DescribeTableCommand 및 도 참조하세요DescribeTable.

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

const params = {
    DatabaseName: "testDbFromNode",
    TableName: "testTableFromNode"
};

const command = new DescribeTableCommand(params);

try {
    const data = await writeClient.send(command);
    console.log(`Table ${data.Table.TableName} has id ${data.Table.Arn}`);
} catch (error) {
    if (error.code === 'ResourceNotFoundException') {
        console.log("Table or Database doesn't exist.");
    } else {
        console.log("Describe table failed.", error);
        throw error;
    }
}

다음 코드 조각은 JavaScript V2 스타일에 를 AWS SDK 사용합니다. 이는 Node.js 샘플 Amazon Timestream LiveAnalytics 의 샘플 애플리케이션을 기반으로 합니다 GitHub.

async function describeTable() {
    console.log("Describing Table");
    const params = {
        DatabaseName: constants.DATABASE_NAME,
        TableName: constants.TABLE_NAME
    };

    const promise = writeClient.describeTable(params).promise();

    await promise.then(
        (data) => {
            console.log(`Table ${data.Table.TableName} has id ${data.Table.Arn}`);
        },
        (err) => {
            if (err.code === 'ResourceNotFoundException') {
                console.log("Table or Database doesn't exists.");
            } else {
                console.log("Describe table failed.", err);
                throw err;
            }
        }
    );
}
.NET 
        public async Task DescribeTable()
        {
            Console.WriteLine("Describing Table");

            try
            {
                var describeTableRequest = new DescribeTableRequest
                {
                    DatabaseName = Constants.DATABASE_NAME,
                    TableName = Constants.TABLE_NAME
                };
                DescribeTableResponse response = await writeClient.DescribeTableAsync(describeTableRequest);
                Console.WriteLine($"Table {Constants.TABLE_NAME} has id:{response.Table.Arn}");
            }
            catch (ResourceNotFoundException)
            {
                Console.WriteLine("Table does not exist.");
            }
            catch (Exception e)
            {
                Console.WriteLine("Describe table failed:" + e.ToString());
            }

        }