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database-services
Excellent operational data management to support a complex data infrastructure
According to Business Insider, a single minute of data infrastructure downtime in a data center costs the companies using this data center over $8,000. The more complex your data infrastructure is, the greater the risk of errors that can lead to downtime, compromised data quality, or disruption of vital processes. The challenge lies in the […]
Sergii Zymbytskyi
Sophisticated migration of an IT infrastructure from on-premise data center to the AWS cloud
ConcertAI, one of the leading providers of medical research software, faced a common scenario for a mature healthcare data center. Over the years, its infrastructure had become highly sophisticated but inconsistent. Some of the servers were running outdated, end-of-life operating systems and urgently needed upgrading. The client decided to implement a cloud-based solution for infrastructure […]
Alex Smirnov, Roman Muzyka
Get maximum of SQL Server: comparing Azure SQL Database and SQL Server on virtual machines
SQL Server is a veteran in the data management market and Microsoft’s most popular relational database management system. It boasts several benefits, including fast query processing, excellent security and data restoration, easy integration with other database systems, portability, and a variety of tools and plugins to enhance database management efficiency. Moreover, migrating SQL Server to […]
Sergii Zymbytskyi
Data management strategy: How to reduce costs and eliminate downtime
Data infrastructure is what powers the proper performance of your software. However, unexpected issues can occur making your system unavailable. That’s where the notion of a downtime, a time period when the system is not available, comes in. Downtime may have different causes and outcomes. But one thing is certain, downtime can be extremely expensive. […]
Sergii Zymbytskyi
Migrating healthcare app databases from AWS Datica to independent AWS servers
A modern medical company was running a large healthcare platform connecting patients with medical imaging providers. They had databases for the admin app, patient app, physician app, and the original service portal. All these databases were running on AWS cloud servers deployed and managed by Datica. The latter helped the customer scale and manage their […]
Viacheslav Kim, Marat Razzakov
Oracle to PostgreSQL migration with AWS SCT: How to convert INSERT ALL statement
In this post we continue exploring the technical aspects of Oracle to PostgreSQL migration using AWS SCT. AWS SCT promises a very high level of migration efforts, however it is very rare that 100% automation is achieved. In this article we’ll look into conversion of INSERT ALL statements, which are quite popular in Oracle code. […]
Oleksii Savchenko
Powerful visualization of business KPIs with Power BI
Our customer is the nation’s largest home outdoor care company, serving more than 2.3 million residential and commercial customers across the United States and having revenues reaching up to $2 billion. Before contacting ABCloudz they had severe business reporting issues. The client’s KPI (key performance indicator) reports were extremely inconsistent and took too much time […]
Taras Koniukhov, Alexey Smirnov, Roman Muzyka
Car Auction Marketplace: From concept to release in record time
Speed is everything in the highly competitive domain of e-commerce. Digital marketplaces of varied sizes appear at an ever-increasing rate and it becomes more challenging to stand out among the competition. According to estimates, a 6-months delay in a software product release can cut its profitability by at least 30%. These numbers had been relevant […]
Michael Virych, Roman Muzyka
An overview of the remote migration from Oracle to SQL Server with SSIS
One of our clients, a large financial software company, wanted to migrate their billing solution from Oracle to SQL Server. They needed to initiate this project because the migration was required by one of their strategic partners. The customer decided to implement SQL Server Integration Services (SSIS) for this migration. Additionally, they needed to do […]
Andrey Khudyakov, Roman Muzyka
Conversion of Oracle schemas with hierarchical queries to SQL Server
One of our clients, prominent information technology company, needed to migrate its Oracle database to SQL Server so they called ABCloudz. They knew they wanted to automate the major part of the migration with SQL Server Migration Assistant (SSMA) but there were some challenges associated with this process. First, the company’s source database code contained […]
Andrey Khudyakov (DB architect), Roman Muzyka (writer)
Schema mapping in migration from Oracle to SQL Server
The migration of Oracle databases to Microsoft SQL Server brings many challenges. One of the most significant is associated with mapping Oracle schema to SQL Server. At the architecture level, the wrong approach will result in significant effort in the future. For example, you may even need to rewrite your app’s entire code from scratch. […]
Andrey Khudyakov, Roman Muzyka
Oracle to SQL Server migration with SSMA: Converting materialized view with float type
A materialized view is an important property of Oracle. SQL Server recreates the same behavior as this materialized view in several ways. Unfortunately, SSMA may have issues with converting this object to SQL Server. It flags certain conditions as an error. In this blog post, we will overview the error O2SS0522. It goes about cases in […]
Andrey Khudyakov
Database migration with SSMA: Handling typical conversion errors
ABCloudz tech experts possess outstanding experience in migrating databases. For this purpose, we frequently use SQL Server Migration Assistant (SSMA). SSMA utilization may cause various types of errors, so we have created a blog post series which focused on typical database conversion errors. Each post in this series is dedicated to a separate problem statement and […]
Andrey Khudyakov, Roman Muzyka
Migrating from SAS to Big Data for a global retailer
When a global retailer in the beauty industry needed a new and cost-effective data processing solution, they knew the search would require a high level of expertise. That is why they decided to seek advice from ABCloudz. The company had a massive amount of data and utilized SAS software for data processing, both powerful but […]
Andrey Khudyakov (DB architect), Roman Muzyka (writer)
Oracle to SQL Server migration with SSMA: Converting interval literals
Oracle enables you to use specific interval literals for indicating a certain period of time. Unfortunately, there is no direct analog for such literals in SQL Server. As a result, when you apply SQL Server Migration Assistant (SSMA) for converting Oracle code with interval literals, you receive an error O2SS0086. The term ‘interval literals’ refers to a fixed data value, […]
Andrey Khudyakov, Roman Muzyka