In our example, we’ll show you how to authenticate against Amazon services within KNIME, access data with S3, and then create and load a DynamoDB table. We’ll also demonstrate several utility nodes that query against DynamoDB, list and describe available tables, and provide batch operations ...
Query DynamoDB Between Two Timestamps You can query items from a DynamoDB table with aupdated_atattribute between two timestamps. To achieve this, use thequeryoperation and specify theKeyConditionExpressionparameter. Here is an example of how you can query for items with anupdated_atattribute ...
Think of a global secondary index as a separate DynamoDB table that contains a subset of attributes from the source table. It also contains an alternate primary key to support query operations. Changes made to the source table are propagated to the global secondary index...
After AWS CloudFormation creates the stack, navigate to the DynamoDB console, choose the newly created table, and then choose theCapacitytab to see the details about the auto scaling configuration, as shown in the following screenshot. On theIndexestab, you can see that ...
The select parameter can be used to return the number of items matching the query, instead of the matching items themselves: response = dynamodb.query({ table_name: 'Products', select: 'COUNT', key_condition_expression: 'account_id = :account_id', expression_attribute_values: { ':account...
With DynamoDB, there's no black box as to how your database will scale: How fast will my query return when the scale is 100X as large?The same -- single-digit milliseconds How will my query impact other queries in the database?It won't -- queries are bounded in their resource impac...
Description I have Datastore and API configured in my application, I need to update records as soon as app is installed, I tried using code below but it returns an error because Datastore needs time to sync local and cloud database at th...
CloudWatch rule name format: DynamoDBContributorInsights-PKT-[resource_name]-[creationtimestamp] Note When you enable Contributor Insights on your DynamoDB table, you're still subject to Contributor Insights rules limits. For more information, see CloudWatch service quotas. If your table or global ...
You also specified DynamoDB actions for read, create, update, scan, and query operations on database items. Finally, you named your DynamoDB table my-demo-table. You will use AWS CloudFormation to create and set up the DynamoDB database. CloudFormation is a tool for specifying the ...
The Rules engine connects data from the message broker to other AWS IoT services for storage and additional processing. For example, you can insert, update, or query a DynamoDB table or invoke a Lambda function based on an expression that you defined in the Rules engine. You can use an SQ...