AWS Database Blog

Category: PostgreSQL compatible

Best practices for migrating an Oracle database to Amazon RDS PostgreSQL or Amazon Aurora PostgreSQL: Migration process and infrastructure considerations

An Oracle to PostgreSQL migration in the AWS Cloud can be a complex multistage process with different technologies and skills involved, starting from the assessment stage to the cutover stage. This blog series covers the environment and configuration setups for your source Oracle database, the AWS Database Migration (AWS DMS) service, and the target PostgreSQL […]

Read More

Migrating Oracle Autonomous Transactions to PostgreSQL

Migrating and operating a database includes layers of complexity and thorough planning. Amazon RDS for PostgreSQL and Amazon Aurora with PostgreSQL compatibility can help you manage a variety of use cases. While migrating from Oracle to PostgreSQL, it’s very common to come across Oracle Autonomous Transactions. This post explains Autonomous Transactions and how you can […]

Read More

Replace SQL Server Agent Job with AWS Step Functions

If you’re migrating from Microsoft SQL Server to Amazon Aurora PostgreSQL, you might have discovered that the SQL agent jobs cannot be easily moved. The job agent tools are not supported for Aurora PostgreSQL. You can overcome this limitation though, by using AWS Step Functions to replace a SQL agent job. In this blog post […]

Read More

How to use Amazon Aurora to drive 3x latency improvement for end users

Born on AWS InfoScout was born on AWS, being along for the journey since its inception in 2011. It all started with a single Amazon EC2 instance to collect receipts uploaded from friends and family. Seven years later, we now manage 150+ AWS instances to support our mobile applications, data pipelines, machine learning models, and […]

Read More

Failover with Amazon Aurora PostgreSQL

Replication, failover, resilience, disaster recovery, and backups—it can be challenging to achieve any or all of these in a traditional or non-cloud-based architecture. In addition, they sometimes require a considerable re-engineering effort. Due to the high implementation and infrastructure costs that are involved, some businesses are compelled to tier their applications so that only the […]

Read More
Database Migration

How to migrate BLOB and CLOB tables from Oracle to PostgreSQL using Ora2pg and AWS DMS

Many enterprises are considering migrating their Oracle databases to PostgreSQL because of the close compatibility between the platforms and the enterprises’ desire to reduce licensing costs. Amazon RDS for PostgreSQL and Amazon Aurora with PostgreSQL compatibility make it easy to set up, operate, and scale PostgreSQL deployments in the cloud in a cost-efficient manner. AWS […]

Read More

How to set up a single pgpool endpoint for reads and writes with Amazon Aurora PostgreSQL

Amazon Aurora provides endpoints for the primary DB instance (the cluster endpoint) and for Read Replicas (the reader endpoint). Aurora updates the cluster endpoint automatically so that it always points to the primary instance. The reader endpoint load balances read operations across all available Read Replicas. Amazon Aurora Replicas typically have less than 100 ms […]

Read More

A quick introduction to migrating from an Oracle database to an Amazon Aurora PostgreSQL database

In this post, we build an AWS CloudFormation stack to deploy resources to help demonstrate the process of migrating from an Oracle database to an Amazon Aurora PostgreSQL database. Because this is a heterogeneous migration, we follow a two-phase approach similar to what is detailed in How to Migrate Your Oracle Database to PostgreSQL. The […]

Read More

Challenges When Migrating from Oracle to PostgreSQL—and How to Overcome Them

David Rader is the vice president of engineering at OpenSCG. OpenSCG is an AWS Consulting Partner and a leading expert in PostgreSQL, helping customers migrate to, operate, and optimize PostgreSQL and other data platforms on premises and in the cloud. In previous posts, we looked at the overall approach for a successful database migration and […]

Read More

Stream data into an Aurora PostgreSQL Database using AWS DMS and Amazon Kinesis Data Firehose

Using AWS Database Migration Service (AWS DMS), you can migrate data from various sources to most widely used commercial and open-source databases. The service supports homogenous migrations such as Oracle to Oracle. It also supports heterogeneous migrations between different database platforms, such as Oracle to Amazon Aurora or Microsoft SQL Server to MySQL. In addition, […]

Read More