AWS Database Blog

Amazon Quantum Ledger Database (Amazon QLDB) is a ledger database that provides a complete and verifiable history of all transactions committed to the ledger. In Amazon QLDB, data records are called documents and are versioned. Documents use a JSON-like format called Amazon Ion. Changes to documents are called revisions and are written to the ledger […]

This is the second of a two-part post. In Part 1, we discussed various approaches to upgrade Amazon Relational Database Service (Amazon RDS) for PostgreSQL and Amazon Aurora PostgreSQL-Compatible Edition databases and explained the high-level steps in these approaches. In this post, we demonstrate how to upgrade an RDS for PostgreSQL database using the pglogical […]

If you need to upgrade your Amazon Relational Database Service (Amazon RDS) for PostgreSQL or Amazon Aurora PostgreSQL-Compatible Edition database to a newer version, you can choose from in-place and out-of-place upgrade options. You may prefer either in-place upgrades (where you don’t have to create a new DB instance) or out-of-place upgrades depending on the […]

Microservices architectures provide development teams a mechanism to reduce time to market, and enable hyper-scaling of business-critical applications. They also provide the flexibility to make technology decisions best suited for the needs of each service. This includes the selection of a purpose-built database to store and retrieve data in a highly scalable and efficient manner. […]

In the post Designing high-performance time series data tables on Amazon RDS for PostgreSQL, we explained how to use partitioned tables as a strategy to improve performance when handling time series data. In this post, we focus on data ingestion and why partitioned tables help with data ingestion. PostgreSQL has had the ability to handle […]

When configuring AWS Database Migration Service (AWS DMS) endpoints, you previously had to maintain the source and target credentials, including auditing, updating, and rotating the database credentials themselves. On December 22, 2020, we announced the integration of AWS DMS and AWS Secrets Manager, which now allows you to manage and automatically rotate the source and […]

In this post, we discuss the need for a metadata and data lineage tool and the problems it solves, how to rapidly deploy it in the language you prefer using the AWS Cloud Development Kit (AWS CDK), as well as getting your first loads of metadata into the tool. Modern data stacks involve ingesting from […]

In this post, we cover best practices for interacting with Amazon ElastiCache for Redis resources with commonly used open-source Redis client libraries. ElastiCache is compatible with open-source Redis. However, you may still have questions about how to optimize your applications and associated Redis client library configurations to interact with ElastiCache. These issues typically arise when […]

The need to move data from one location to another in an asynchronous manner is a goal for many enterprises. Use cases might include migrating data to a reporting database, moving applications from on premises to the cloud, storing a redundant copy in another data center, configuring active/active databases across geographic locations, and performing heterogeneous […]

Amazon Relational Database Service (Amazon RDS) for SQL Server makes it easy to set up, operate, and scale SQL Server deployments in the cloud. As a fully managed database service, Amazon RDS for SQL Server takes automated backups of your DB instance during the backup window. If required, you can restore your DB instance to […]