AWS Database Blog

Organizations are looking to migrate on-premises Oracle database workloads to Amazon Relational Database Service (Amazon RDS) for PostgreSQL or Amazon Aurora PostgreSQL-Compatible Edition. Most heterogeneous database migrations present unique challenges. One among them is converting Oracle schemas with partitioned (and sub-partitioned) tables to PostgreSQL-compatible partitioned tables. PostgreSQL declarative partitioning is a flexible way to manage […]

Oracle Database version 12c is past end of support, as announced by Oracle. Oracle 12c Release 1 (12.2.0.1) stands unsupported beyond March 31, 2022, and Oracle 12c Release 2 (12.1.0.2) is unsupported beyond July 31, 2022. After these dates, Oracle no longer releases Critical Patch Updates for these versions. To ensure that our customers continue […]

Amazon DocumentDB is a scalable, highly durable, and fully managed database service for operating mission-critical JSON workloads for enterprises. Amazon DocumentDB simplifies your architecture by providing built-in security best practices, continuous backups, and native integrations with other AWS services. In this blog series, we discuss the approach for seamless migration of live data from a […]

Amazon Relational Database Service (Amazon RDS) for Oracle now supports a fully managed, switchover-based role transition for Oracle Database replicas using Oracle Data Guard. You can initiate a switchover to a replica that is mounted or open read-only and the replicas can reside within an Availability Zone of a Region, across an Availability Zones of […]

This is a guest post by Sahil Thakral, Lead Platform Engineer, OLX Autos and Shashank Singh, Lead Platform Engineer, OLX Autos. In 2019, OLX Autos merged with Frontier Car Group (FCG), a used auto marketplace in Germany. Until then, OLX Autos had been exclusively using AWS to host its cloud infrastructure. However, FCG was running […]

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 […]

Most enterprise customers have high uptime requirements for their mission-critical applications. Their businesses can’t afford application downtime and have requirements for minimal or near-zero downtime patching ability for their application and databases. The infrastructure used by the backend Oracle databases for those business-critical applications must be able to support these high uptime needs. When migrating […]

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 […]

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 […]

PostgreSQL is a powerful open-source object-relational database system with over 30 years of active development that has earned it a strong reputation for reliability, feature robustness, and performance. AWS offers Amazon Relational Database Service (Amazon RDS) and Amazon Aurora as fully managed relational database services. Amazon RDS for PostgreSQL and Amazon Aurora PostgreSQL-compatible edition makes […]