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Testing ProfessorMulti-Cloud Guidebook · AWS
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Database

Amazon DynamoDB

Serverless key-value & document NoSQL database at any scale.

Official docs

Overview

DynamoDB delivers single-digit-millisecond performance at any scale with on-demand or provisioned capacity, streams, global tables and TTL.

When to use it

  • High-throughput key/value access patterns
  • Session stores, user profiles, IoT telemetry
  • Storing test execution metadata indexed by run-id

Setup

  1. Console → DynamoDB → Create table. Choose partition key (and sort key if needed).
  2. Pick On-Demand (pay per request) for unpredictable QA workloads.
  3. Enable PITR (Point-in-Time Recovery) and DynamoDB Streams if you need change events.

How to use

Put an item
aws dynamodb put-item --table-name TestRuns --item '{"runId":{"S":"r-1"},"status":{"S":"PASS"}}'
Query by partition key
aws dynamodb query --table-name TestRuns --key-condition-expression 'runId = :r' --expression-attribute-values '{":r":{"S":"r-1"}}'

QA use cases

  • Persist every test-case result with TTL of 90 days for trending dashboards.
  • Use DynamoDB Streams + Lambda to push real-time failure alerts to QA channels.