AWS Database Blog

Category: Announcements

Optimize database performance using resource governor on Amazon RDS for SQL Server

You can now use resource governor with Amazon RDS for SQL Server Enterprise Edition to optimize your database performance by controlling how compute resources are allocated across different workloads. This post shows you how to optimize your database performance using resource governor on Amazon RDS for SQL Server. We walk you through the step-by-step process of enabling and configuring the feature, including how to set up resource pools, create workload groups, and implement classifier functions for effective resource management.

Implement high availability in Amazon RDS for SQL Server Web Edition using block-level replication

Amazon RDS for SQL Server has enhanced SQL Server 2022 Web Edition by introducing high availability through block-level replication in Multi-AZ deployments. With this release, you can quickly set up and maintain highly available databases while significantly reducing operational overhead. In this post, we discuss the benefits of block-level replication and how to get started. For more information, see Licensing Microsoft SQL Server on Amazon RDS.

Multi-key support for Global Secondary Index in Amazon DynamoDB

Amazon DynamoDB has announced support for up to 8 attributes in composite keys for Global Secondary Indexes (GSIs). Now, you can specify up to four partition keys and four sort keys to identify items as part of a GSI, allowing you to query data at scale across multiple dimensions. In this post we show you how to design similar data models more efficiently using Global Secondary Indexes with the additional attribute support in composite keys and provide examples of DynamoDB data models with reduced complexity.

Accelerating data modeling accuracy with the Amazon DynamoDB Data Model Validation Tool

Today, we’re introducing the Amazon DynamoDB Data Model Validation Tool, a new component of the MCP server that closes the loop between generation, evaluation, and execution. The validation tool automatically tests generated data models against Amazon DynamoDB local, refining them iteratively until every access pattern behaves as intended.

Accelerate database modernization using AI with the Database Modernizer Workshop

In this post, we show how you can use the Database Modernizer workshop to accelerate your database modernization journey from MySQL to Amazon DynamoDB. Traditional approaches to migrating from relational databases to NoSQL solutions like DynamoDB can take several months, requiring extensive expertise in data modeling, application refactoring, and migration strategies. The Database Modernizer workshop, which can be scheduled by your account team as part of the Amazon DynamoDB Immersion Day program, uses AI to help you complete database modernization projects in days instead of months.

Introducing fully managed Blue/Green deployments for Amazon Aurora Global Database

Today, we’re introducing Amazon RDS Blue/Green support for Aurora Global Database, enabling database upgrades and modifications with minimal downtime. With just a few steps, you can create a blue/green deployment that establishes a fully managed staging (green) environment mirroring the existing production (blue) environment, including the primary and its associated secondary regions of the Global Database.

Amazon DocumentDB (with MongoDB compatibility) introduces new query planner that delivers up to 10x performance improvements

On Oct 28, 2025, Amazon DocumentDB (with MongoDB compatibility) introduced a new query planner (NQP) to improve database performance and stability. The redesigned architecture uses improved cost estimation techniques and optimized algorithms for smarter query plan selection.

Amazon Keyspaces now supports logged batches for atomic, multi-statement operations

Today, we are announcing Amazon Keyspaces (for Apache Cassandra) support for logged batches, a powerful feature that brings atomic, all-or-nothing write operations to your Apache Cassandra-compatible workloads. In this post, we explore the benefits of logged batches, demonstrate how to set up and run them, and discuss important considerations when using logged batches with Amazon Keyspaces.

Announcing vector search for Amazon ElastiCache

Vector search for Amazon ElastiCache is now generally available. You can now use ElastiCache to index, search, and update billions of high-dimensional vector embeddings from popular providers like Amazon Bedrock, Amazon SageMaker, Anthropic, and OpenAI—with latencies as low as microseconds and up to 99% recall.

Scale read operations with Amazon Timestream for InfluxDB read replicas

In this post, we show how to use Amazon Timestream for InfluxDB read replicas to scale your read operations by adding additional read replicas while maintaining a single write endpoint. Built in partnership with InfluxData, our read replica add-on offers InfluxDB open source customers the ability to horizontally scale their read capacity.