AWS Database Blog

Category: Technical How-to

Achieve one second or less downtime with the Advanced JDBC Wrapper Driver when upgrading Amazon RDS Multi-AZ DB Clusters

When upgrading minor versions of RDS Multi-AZ clusters the connections are switched from the current writer to a newly upgraded reader. Clients have the option to connect to either the cluster writer endpoint or the cluster reader endpoint. Normally, they would connect to the writer endpoint. This endpoint is directed to the current writer instance. […]

Perform minor version upgrades with a downtime of 1 second or less with Amazon RDS Proxy and Amazon RDS Multi-AZ deployments with two readable standbys

Amazon RDS Multi-AZ deployments with two readable standbys now supports minor version upgrades and system maintenance updates with typically 1 second or less of downtime when used with Amazon RDS Proxy. In this post, we discuss this new feature, its benefits, and the steps to set it up. Amazon RDS Multi-AZ deployments with two readable […]

Schedule scaling for Amazon Aurora replicas using AWS Application Auto Scaling

In this post, we demonstrate how to modify the Amazon Aurora reader auto scaling configuration on a schedule using AWS Application Auto Scaling, on top of the existing auto scaling policies. When your application grows, the load on your database will most likely grow as your application saves larger amounts of data. Whether it’s the […]

Secure your data at rest on Amazon RDS Custom for SQL Server using transparent data encryption (TDE) or column-level encryption (CLE)

Customers in industries such as healthcare and financial services take full advantage of the built-in security features of SQL Server to meet their regulatory and compliance requirements. When migrating their database to the AWS Cloud, we often see customers asking for SQL Server security feature support such as TDE, column-level encryption on Amazon Relational Database […]

Configure Linked Servers on Amazon RDS Custom for SQL Server

Amazon Relational Database Service (Amazon RDS) Custom is a managed database service that automates the setup, operation, and scaling of databases in the cloud while granting you access to the underlying operating system and database environment. You can provision a Multi-AZ Amazon RDS Custom for SQL Server instance for a highly available environment with automatic […]

Troubleshoot network connectivity to Amazon RDS Custom databases using VPC Reachability Analyzer

Amazon Virtual Private Cloud (Amazon VPC) enables you to provision a logically isolated section of the AWS Cloud where AWS resources such as Amazon Relational Database Service (Amazon RDS) Custom DB instances can be launched in a virtual network you define. When creating an Amazon RDS Custom DB instance, you have the option to create […]

Diagram-as-code using generative AI to build a data model for Amazon Neptune

To be successful with a graph database—such as Amazon Neptune, a managed graph database service—you need a graph data model that captures the data you need and can answer your questions efficiently. Building that model is an iterative process. The earliest stage of the process, in which you are merely getting initial elements on paper […]

Automatically scale Amazon RDS storage using Amazon CloudWatch and AWS Lambda

Customer databases are constantly growing. When you increase storage for a database in Amazon Relational Database Service (Amazon RDS), you can’t make further storage modifications for either 6 hours or until storage optimization has completed on the instance, whichever is longer. Amazon RDS storage autoscaling increases storage by 10 GiB, 10% of currently allocated storage, […]

Optimize cost and boost performance of RDS for MySQL using Amazon ElastiCache for Redis

Customers often face the challenge of optimizing the cost of their database environments, while having to improve their application performance and response times, as both their data volumes and user base grow. Internet-scale applications that have large volumes of data and high volumes of throughput need underlying data architectures that can support microsecond latencies. Improving […]

Migrate Oracle global unique indexes in partitioned tables to Amazon RDS for PostgreSQL and Amazon Aurora PostgreSQL

When you migrate from Oracle to Amazon Aurora PostgreSQL-Compatible Edition or Amazon Relational Database Service (Amazon RDS) for PostgreSQL, you may need to deal with partitioned tables and ensure global uniqueness across partitions. Oracle Database supports global indexes. A global index contains keys from multiple table partitions in a single index partition. Each table partition […]