Babelfish for Aurora PostgreSQL (Preview)

Run Microsoft SQL Server applications on PostgreSQL with little to no code change

Babelfish is a new translation layer for Amazon Aurora PostgreSQL that enables Aurora to understand commands from applications written for Microsoft SQL Server.

Migrating from legacy SQL Server databases can be time-consuming and resource-intensive. When migrating your databases, you can automate the migration of your database schema and data using the AWS Database Migration Service (DMS), but there is often more work to do to migrate the application itself, including re-writing application code that interacts with the database.

With Babelfish, Aurora PostgreSQL now understands T-SQL, Microsoft SQL Server's proprietary SQL dialect, and supports the same communications protocol, so your apps that were originally written for SQL Server can now work with Aurora with fewer code changes. As a result, the effort required to modify and move applications running on SQL Server 2014 or newer to Aurora is reduced, leading to faster, lower-risk, and more cost-effective migrations.

Babelfish is a built-in capability of Amazon Aurora, and does not have an additional cost. You can enable Babelfish on your Amazon Aurora cluster with a just few clicks in the RDS management console.


Reduce migration time and risk

With Babelfish, Amazon Aurora PostgreSQL supports commonly used T-SQL language and semantics which reduces the amount of code changes related to database calls in an application. As a result, the amount of application code you need to re-write is minimized, reducing the risk of any new application errors.

Migrate at your own pace

With Babelfish, you can run SQL Server code side-by-side with new functionality built using native PostgreSQL APIs. Babelfish enables Aurora PostgreSQL to work with commonly-used SQL Server query tools, commands, and drivers. As a result, you can continue developing with the tools you are familiar with.

Coming soon: Babelfish for PostgreSQL Open Source Project

Babelfish source code will soon be available on GitHub under the Apache 2.0 license.

Learn more »

How it works

Babelfish implements support for commonly used SQL Server language and semantics (T-SQL) enabling your legacy applications to communicate with Aurora without extensive code re-writes.


How to get started

You can request an invitation to join the limited private preview of Babelfish for Aurora PostgreSQL by completing the submission form below. Should you be accepted, we will contact you with further instructions. You will need an AWS Account Number in order to request an invitation. A broader preview will be available later in 2021. For more information on migrating your database to Aurora PostgreSQL, click here.

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