AWS Database Blog

IAM role-based authentication to Amazon Aurora from serverless applications

Storing user names and passwords directly in applications is not a best practice. Saving credentials as plaintext should never occur in a secure application. As a solution, AWS Identity and Access Management (IAM) policies can assign permissions that determine who is allowed to manage Amazon Aurora resources. For example, you can use IAM to determine […]

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Building an AWS CloudFormation custom resource to manage Amazon RDS point-in-time recovery

Amazon RDS makes it easy to set up, operate, and scale a relational database in the cloud. It provides cost-efficient and resizable capacity while automating time-consuming administration tasks such as hardware provisioning, database setup, patching, and backups. It frees you to focus on your business logic and application features, leaving the heavy lifting to AWS. […]

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Optimizing and tuning queries in Amazon RDS PostgreSQL based on native and external tools

PostgreSQL is one of the most popular open-source relational database systems. The product of more than 30 years of development work, PostgreSQL has proven to be a highly reliable and robust database that can handle a large number of complicated data workloads. PostgreSQL is considered to be the primary open-source database choice when migrating from […]

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Making coordinated changes to multiple items with Amazon DynamoDB transactions

The use of NoSQL databases has increased significantly in recent years as more and more organizations see NoSQL databases as solutions that free them from the constraints of a relational database management system (RDBMS). While the flexibility, agility, and performance of NoSQL databases are the main benefits triggering the shift towards them, the popularity of […]

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Amazon Neptune now supports TinkerPop 3.4 features

Amazon Neptune now supports the Apache TinkerPop 3.4.1 release. In this post, you will find examples of new features in the Gremlin query and traversal language such as text predicates, changes to valueMap, nested repeat steps, named repeat steps, non-numerical comparisons, and changes to the order step. It is worth pointing out that TinkerPop 3.4 […]

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Analyzing the impact of Python version on Amazon DynamoDB scan performance

Amazon DynamoDB is a NoSQL database that allows for a flexible schema. This means that items in the same table may differ from each other in terms of what attributes are present for each item. In an earlier AWS Blog post, we looked at the performance impact of attribute counts per item. Recently, when helping […]

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Simulating Amazon DynamoDB unique constraints using transactions

Most relational database systems—and some non-relational database systems—have a construct known as a unique key or a unique constraint. This feature ensures that all values in a column or field are unique across rows. For example, if you have a User table, you might have a UUID as a primary key that uniquely identifies each […]

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Building a cross-account continuous delivery pipeline for database migrations

To increase the speed and quality of development, you may use continuous delivery strategies to manage and deploy your application code changes. However, continuous delivery for database migrations is often a manual process. Adopting continuous integration and continuous delivery (CI/CD) for database migrations has the following benefits: An automated multi-account setup simplifies database migrations. The […]

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Performing SQL database client-side encryption for multi-Region high availability

Amazon Relational Database Service (RDS) and Amazon Aurora natively provide encryption at rest to protect the underlying storage of database instances, automated backups, Read Replicas, and snapshots. However, some customers may have greater data protection requirements which require encrypting data in use. For example, encryption is required where tokenization solutions do not fit, such as when […]

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Deploying and configuring Active Directory authentication with SQL Server 2017 on Amazon Linux 2

SQL Server on Windows allows you to configure SQL Server instances to use Windows authentication with Active Directory accounts. This post addresses how to do that with SQL Server 2017 on Amazon Linux 2. This solution allows you to log in with your Active Directory accounts using Windows authentication to manage SQL Server Linux instances […]

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