AWS Database Blog
Category: Advanced (300)
Validate database objects post-migration from Microsoft SQL Server to Amazon RDS for MySQL and Amazon Aurora MySQL
Database object validation plays a key role in the database migration process. It’s the process of determining whether all the source database objects have been successfully migrated to the target database by comparing their types and counts. If you skip the validation phase, you may encounter runtime errors due to missing database objects, which can […]
Debug AWS DMS tasks using Time Travel
In this post, we deep dive into AWS Database Migration Service (AWS DMS) Time Travel, a feature that was introduced with DMS version 3.4.6 to make troubleshooting simple and secure. With Time Travel, you can now troubleshoot data discrepancies between source and target by retrieving and logging the SQL statements. We’ll discuss the steps to […]
Create an audit trail for an Amazon Aurora PostgreSQL table
Many companies need to maintain an audit trail to track updates to their data. For compliance and other reasons, they’re required to preserve a history of all updates and deletes made to any given record in any given database table. For example, a foreign exchange transaction between two global banks includes a set of payment […]
Migrate from Azure Cosmos DB to Amazon DynamoDB using AWS Glue
To take advantage of the performance, security, and scale of Amazon DynamoDB, customers want to migrate their data from their existing NoSQL databases in a way that is cost-optimized and performant. In this post, we show you how to migrate data from Azure Cosmos DB to Amazon DynamoDB through an offline migration approach using AWS […]
Upgrade Amazon Aurora MySQL-Compatible Edition version 1 (with MySQL 5.6 compatibility)
December 2022: This post was updated with support for blue/green deployments for Amazon RDS and Amazon Aurora. November 2022: This post was updated with changes introduced with the launch of Amazon Aurora MySQL-Compatible Edition versions 2 and 3, and in-place upgrade from version 2 to 3. Amazon Aurora MySQL-Compatible Edition version 1 (with MySQL 5.6 […]
Automate schema version control and migration with Flyway and AWS Lambda on Amazon Aurora PostgreSQL
Monthly releases are always hectic, and companies face challenges with SQL deployments and schema versioning. It’s very time-consuming when multiple developers are developing code and need to run multiple SQL files across multiple production databases. To maintain environment integrity and consistency across applications, code and schema changes need to sync across multiple non-production and production […]
Recreate an Amazon RDS Custom for Oracle database: Part 2
End of support notice: On March 31, 2027, AWS will end support for Amazon RDS Custom for Oracle. Existing customers can continue using the service until March 31, 2027. After March 31, 2027, you will no longer be able to access RDS Custom for Oracle resources including database instances, snapshots, and custom engine versions. We […]
Make configuration changes to an Amazon RDS Custom for Oracle instance: Part 1
End of support notice: On March 31, 2027, AWS will end support for Amazon RDS Custom for Oracle. Existing customers can continue using the service until March 31, 2027. After March 31, 2027, you will no longer be able to access RDS Custom for Oracle resources including database instances, snapshots, and custom engine versions. We […]
Best practices to deploy Amazon Aurora databases with AWS CloudFormation
Many organizations prefer infrastructure as code (IaC) for provisioning and maintaining IT infrastructure. With IaC, you can replicate DevOps practices for application code such as storing the infrastructure code in a source control system, automated testing, and automated deployment through a continuous integration and continuous delivery (CI/CD) pipeline. AWS CloudFormation is an IaC service that […]
IPv6 addressing with Amazon RDS
We all have our own individual identity in this world. It may be a home address or unique ID card number. But have you ever considered how you are perceived online? Generalizing, have you ever considered how complex or large a system should be to accommodate all unique identifiers around the world, considering devices also […]









