AWS Database Blog

Tag: Amazon Aurora

Multi-tenant data isolation with PostgreSQL Row Level Security

  Isolating tenant data is a fundamental responsibility for Software as a Service (SaaS) providers. If one of your tenants gains access to another tenant’s data, you lose trust and may permanently damage your brand or worse, lose your business. With the risks so great, it is critical to have an effective data isolation plan. […]

Common administrator responsibilities on Amazon RDS and Amazon Aurora for PostgreSQL databases

Amazon Web Services (AWS) offers Amazon Relational Database Service (RDS) and Amazon Aurora as fully managed relational database services. With a few commands, you can have your production database instance up and running on AWS. An online database frees the database administrator (DBA) from many maintenance and management tasks. However, there are a few significant […]

Achieving minimum downtime for major version upgrades in Amazon Aurora for PostgreSQL using AWS DMS

AWS provides two managed PostgreSQL options: Amazon RDS for PostgreSQL and Amazon Aurora PostgreSQL. When Amazon RDS or Aurora support a new major version of a database engine, for example, PostgreSQL 10 to 11, you can upgrade your DB instances to the new version. Major version upgrades can contain database changes that may not be […]

How Zendesk tripled performance by moving a legacy system onto Amazon Aurora and Amazon Redshift

This is a guest post by James Byrne, Engineering Leader at Zendesk, focusing on data pipeline development and operations for the Zendesk Explore analytics product, and Giedrius Praspaliauskas, AWS Solutions Architect. Zendesk is a CRM company that builds support, sales, and customer engagement software designed to foster better customer relationships. From large enterprises to startups, […]

Converting the SYSDATE function from Oracle to PostgreSQL

July 2023: This post was reviewed for accuracy. 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. For more information about the migration process, see Database Migration—What Do You Need to Know Before You […]

Recap of Amazon RDS and Aurora features launched in 2019

Updated 04/2022 to reflect product changes. Amazon Relational Database Service (Amazon RDS) makes it easy to set up, operate, and scale a relational database in the cloud. It provides cost-efficient and resizable capacity. At the same time, it automates time-consuming administration tasks such as hardware provisioning, database setup, patching, and backups. It frees you to […]

PostgreSQL 12 – A deep dive into some new functionality

The PostgreSQL community continues its consistent cadence of yearly major releases with PostgreSQL 12. PostgreSQL 12 introduces features opening up new development opportunities while simplifying the management of some already robust capabilities, such as new ways to query JSON data, enhancements to indexes, and better performance with partitioned tables. In this post, I take a […]

Migrating to Amazon Aurora MySQL with fallback option using GTID-based replication

When migrating production applications, it is often important to have a fallback option. This blog post demonstrates how to use global transaction identifier (GTID)-based replication to migrate Amazon RDS MySQL workloads to Amazon Aurora MySQL. We also discuss how to use a fallback mechanism in case you encounter any issues. For more information about GTID-based […]

Aurora PostgreSQL Disaster Recovery solutions using Amazon Aurora Global Database

Amazon Aurora with PostgreSQL compatibility combines the performance and availability of high-end commercial databases with the simplicity and cost-effectiveness of open source databases. Aurora provides this by scaling storage across three Availability Zones in the same Region, and supports up to 15 read replica instances for scaling out read workloads and high availability within a […]

Migrating legacy PostgreSQL databases to Amazon RDS or Aurora PostgreSQL using Bucardo

If you are using PostgreSQL earlier than 9.4, you are using an unsupported version of PostgreSQL, and may have limited options to migrate or replicate your databases in Amazon RDS or Amazon Aurora PostgreSQL. This is primarily because PostgreSQL versions older than 9.4 can’t perform logical replication. Bucardo is an open-source utility that can replicate […]