abcloudz

Learn more about

PostgreSQL

Modernizing the Oracle ODS Data Warehouse for SaaS flexibility with PostgreSQL on AWS

Imagine trying to keep up with the evolving needs of higher education institutions while ensuring your systems are cost-effective and scalable. This was the challenge faced by our client, a company providing a suite of software solutions for educational institutions. They needed to modernize one of their core components—an Operational Data Storage (ODS) system, which […]
Oleksii Savchenko (DB Developer), Oleksii Svitlychnyi (Technical writer)

Database migration with AWS SCT: Solutions for typical conversion issues

Migrating Oracle databases to PostgreSQL or MySQL with AWS Schema Conversion Tool (AWS SCT) can present a range of challenges, from unsupported data types to limitations in automated code conversion and potential performance issues. AWS SCT offers powerful capabilities to automate these migrations, but it may not always deliver optimal results or handle complex Oracle […]
Oleksii Svitlychnyi

Handling null and empty string differences in Oracle and PostgreSQL

When migrating from Oracle to PostgreSQL, one of the most important differences to consider is the treatment of null and empty string values. In Oracle, null and empty string are treated as the same entity, but in PostgreSQL, they are distinct. Failing to account for this distinction during migration can lead to logical errors and […]
Oleksii Savchenko

Handling PostgreSQL Routines with More Than 100 Arguments

When working with PostgreSQL, database developers may encounter a limitation when attempting to create routines with more than 100 arguments. PostgreSQL enforces this restriction by setting FUNC_MAX_ARGS to 100 during the server build. Although this limitation is rarely an issue, complex procedures, particularly those migrated from Oracle, may have a significantly higher number of arguments. […]
Oleksii Savchenko

How to Optimize Oracle-to-PostgreSQL Migrations Using AWS SCT Extension Pack

The AWS SCT Extension Pack is designed to emulate Oracle’s system functions, procedures, and other database objects within PostgreSQL. This emulation is achieved by creating a special schema in PostgreSQL, named aws_oracle_ext, where these functions and objects are stored. This pack simplifies migration by replacing Oracle-specific calls with their PostgreSQL equivalents, ensuring that the code […]
Oleksii Savchenko

Natural Language Interface for Data Platform

Imagine a business analyst whose task is to extract necessary information from a data warehouse to generate various reports. They need to be proficient in crafting SQL queries of any complexity—a challenging and time-consuming feat that requires deep understanding of database structures and SQL language. But what if this business analyst had an AI assistant […]
Maksym Kurhanetskyi, Oleksii Svitlychnyi

AI Text Classification and Matching for Better Decisions

Picture this: You have an AI-powered assistant that helps manage your team’s growth. It works with three types of text data: job descriptions, employee skills, and training programs. You give it a job description and an employee’s skill set, and it pinpoints the perfect training programs to bridge any skill gaps. It’s like having a […]
Maksym Kurhanetskyi, Oleksii Svitlychnyi

Deployment of AI-Powered Chatbot

This blog post focuses on the architecture and deployment of the AI-powered Chatbot solution that we described in our earlier blog post Custom AI Chatbot Development Using RAG. This solution is built for the AWS cloud but uses OpenAI as an LLM. We’ll dive deep into the CI/CD process and AWS deployment architecture of the […]
Kostiantyn Odynets, Oleksii Svitlychnyi

Custom AI Chatbot Development Using RAG

You have probably seen and heard about AI-powered chatbots that can converse with the user about website content, or some piece of knowledge related to a company. The world is full of buzz on all things AI, with chatbots driving the headlines. In this article, we’ll share our experience building a full-blown solution from scratch […]
Maksym Kurhanetskyi, Oleksii Svitlychnyi

Over-the-Air Device Firmware Upgrade via Bluetooth

We’ve developed a mobile app and web admin panel that allow a specialized headphone manufacturer for Heavy Metal enthusiasts to swiftly and conveniently deliver firmware updates for their headphones over the air. These headphones do more than just play music; they’re designed to precisely render sound, enhanced by continually evolving custom firmware for each model. […]
Oleksii Svitlychnyi

Case Study: Fast and secure media content delivery with Amazon CloudFront and Lambda@Edge

This case study shows how ABCloudz engineering team resolved site performance issues using Amazon CloudFront and Lambda@Edge of AWS. Challenge Our partner iCleanse offers its clients the Swift UV devices, designed to disinfect hands and mobile phones. As the device disinfects a phone within 15 seconds, it simultaneously displays sponsored video content, generating advertising revenue. […]
Viacheslav Kim

Case Study: Boosting Online Building Materials Marketplace Performance with Amazon CloudFront and Lambda@Edge 

Our client aimed to develop an online marketplace for building materials, designed to manage intricate online transactions and ensure a top-notch global user experience, supported by stringent security and exceptional performance standards. This case study details how ABCloudz utilized Amazon CloudFront, coupled with Lambda@Edge for dynamic content delivery. By deploying CloudFront, we significantly reduced web […]
Viacheslav Kim

Building an Intelligent Chatbot with OpenAI LLM using RAG

Chatbots as they come are not something new under the sky. They have populated the web since long ago leaving behind an impressive trail of user annoyance and frustration. Wild repetitions, endless question-answer loops, and downright stupidity were the common laments to splash in jokes among the cubicle drones. The only improvements seemed to be […]
Maksim Kurganetskiy

SaaS Platform Modernization and Database Migration to PostgreSQL on Amazon RDS

Executive Summary Challenge: To modernize its Project and Portfolio Management (PPM) SaaS platform,  OpenText (formerly Micro Focus) made the call to shift its products from on-premises Oracle servers to PostgreSQL on Amazon RDS. They faced various hurdles due to inconsistencies within the database and the legacy architecture of their app. They also requested a reusable […]
Alexander Gora

Custom data migration solution for a complex Oracle to PostgreSQL migration project using AWS DMS

In this post we’d like to share with you our experience in delivering a sophisticated database migration solution on top of AWS DMS for one of our large enterprise customers. The client is a large technology corporation that provides software solutions and services for telecom giants and mid-size companies. They ran numerous Oracle databases where […]
Alexander Gora
12

Hi there! How can I help you?