Purpose-built databases for all your application needs.
Included Services
Amazon RDS
Managed relational database service.
<h3>Amazon RDS (Relational Database Service)</h3>
<p><strong>Definition:</strong> Managed relational database service.</p>
<p><strong>Engines:</strong> MySQL, PostgreSQL, MariaDB, Oracle, SQL Server.</p>
<p><strong>Features:</strong></p>
<ul>
<li>Multi-AZ deployments for high availability.</li>
<li>Read replicas (for scaling).</li>
<li>Automated backups and patching.</li>
<li>Storage auto-scaling.</li>
</ul>
<p><strong>Use Cases:</strong> Traditional applications, e-commerce, CRM.</p>
Amazon Aurora
High-performance API compatible DB.
<h3>Amazon Aurora</h3>
<p><strong>Definition:</strong> MySQL and PostgreSQL compatible relational database.</p>
<p><strong>Features:</strong></p>
<ul>
<li>Up to 5x faster than standard MySQL.</li>
<li>Up to 3x faster than standard PostgreSQL.</li>
<li>15 read replicas (vs. 5 for RDS).</li>
<li>Aurora Serverless (auto-scaling).</li>
<li>Global Database (cross-region replication).</li>
</ul>
Amazon DynamoDB
Fast, flexible NoSQL database service.
<h3>Amazon DynamoDB</h3>
<p><strong>Definition:</strong> Fully managed NoSQL database.</p>
<p><strong>Key Concepts:</strong> Tables, Items, Attributes.</p>
<p><strong>Capacity Modes:</strong></p>
<ul>
<li><strong>Provisioned:</strong> Set RCU/WCU.</li>
<li><strong>On-Demand:</strong> Pay per request.</li>
</ul>
<p><strong>Features:</strong> Global Tables, DAX (in-memory cache), Streams, TTL.</p>
Amazon ElastiCache
In-memory data store and cache.
<h3>Amazon ElastiCache</h3>
<p><strong>Definition:</strong> Managed Redis or Memcached in-memory data store.</p>
<p><strong>Use Cases:</strong> Database caching, session stores, real-time analytics, gaming leaderboards.</p>
Amazon Redshift
Fast, simple, cost-effective data warehousing.
<h3>Amazon Redshift</h3>
<p><strong>Definition:</strong> Petabyte-scale data warehouse.</p>
<p><strong>Architecture:</strong></p>
<ul>
<li><strong>Leader Node:</strong> Query planning and coordination.</li>
<li><strong>Compute Nodes:</strong> Execute queries and store data.</li>
<li><strong>Columnar Storage:</strong> Optimized for analytics.</li>
</ul>
<p><strong>Features:</strong> Spectrum (query S3 directly), Concurrency Scaling.</p>
Amazon DocumentDB
Fast, scalable, fully managed MongoDB-compatible database.
<h3>Amazon DocumentDB</h3>
<p><strong>Definition:</strong> MongoDB compatible document database.</p>
<p><strong>Features:</strong> 3x throughput of MongoDB, automatic scaling, replication across 3 AZs.</p>
