SQL

Showing 1-9 of 12 results
EngineeringIcon ChevronData Science and Databases

Oracle to SQL Server and SQL Server to Oracle Migration Guide

by Leonid Draginsky

Migrating in either direction between Microsoft SQL Server and Oracle Database? There are some significant pitfalls to be aware of...

11 minute readContinue Reading
EngineeringIcon ChevronData Science and Databases

An Intro to SQL Window Functions

by Neal Barnett

SQL window functions are calculation functions similar to aggregate functions but, unlike normal aggregate functions like "group by," have access to individual rows and can even add some of their attributes into the result set. In this article, Toptal Freelance SQL Developer Neal Barnett explains the benefits of SQL functions, describes when you’d use them, and gives you real examples to help with the concepts.

6 minute readContinue Reading
EngineeringIcon ChevronData Science and Databases

Three Principles of Data Warehouse Development

by Chamitha Wanaguru

Data warehouses aren’t exactly a new concept, but industry demand for data science services, coupled with the rise of AI and machine learning, is making them more relevant than ever. In this post, Toptal Data Warehouse Developer Chamitha Wanaguru outlines three basic principles you need to keep in mind when developing a new data warehouse.

9 minute readContinue Reading
EngineeringIcon ChevronData Science and Databases

Developing a Bioinformatics Database for Disulfide Bonds Research

by Viktor Bojović

The Protein Data Bank (PDB) bioinformatics database is the world's largest repository of experimentally-determined structures of proteins, nucleic acids, and complex assemblies. All data is gathered using experimental methods such as X-ray, spectroscopy, crystallography, NMR, etc. This article explains how to extract, filter, and clean data from the PDB to make it suitable for further analysis.

25 minute readContinue Reading
EngineeringIcon ChevronData Science and Databases

Database Migrations: Turning Caterpillars into Butterflies

by Ivan Pavlov

For a large codebase, managing database schema can become tedious, especially if you maintain multiple testing environments or customers that update the product at different paces. Sometimes, documenting the latest schema or database changes isn't enough. In this article, Toptal Database Engineer Ivan Pavlov introduces us to concepts that help manage database states.

11 minute readContinue Reading
EngineeringIcon ChevronTechnology

Bad Practices in Database Design: Are You Making These Mistakes?

by Fernando Martinez

Flaws in your database design are like cracks in your application’s foundations. If left unchecked, trying to fix them down the line will be costly to say the least. In this article, Toptal Freelance Software Engineer Fernando Martinez discusses some of the most common database design bad practices and how to avoid them.

8 minute readContinue Reading
EngineeringIcon ChevronBack-end

Guide to Data Synchronization in Microsoft SQL Server

by Andrej Gajdos

Sharing related information among isolated systems has become increasingly important. There are many methods to choose from to perform that task for SQL Server, but it’s important to know which is better for each use case.

12 minute readContinue Reading
EngineeringIcon ChevronBack-end

SQL Server 2016 Always Encrypted: Easy to Implement, Tough to Crack

by Josip Šaban

Security has always been a primary concern for database experts, and with the advent of new, decentralized services, it’s become even more crucial. Microsoft addressed the need for an added level of security in SQL with the introduction of Always Encrypted functionality in SQL Server 2016. In this blog post, Toptal Freelance Software Engineer Josip Saban explains how Microsoft’s Always Encrypted concept works, how it’s implemented, and why developers can’t afford to ignore it.

11 minute readContinue Reading
EngineeringIcon ChevronBack-end

Guide To Budget-friendly Data Mining

by Jeffrey Shumaker

Although database programming does not evolve at nearly the same pace as traditional application programming, recent advancements in several fields are bringing new techniques and technologies within the reach of small and independent developers. In this guide, Toptal Freelance Software Engineer Jeffrey Shumaker explains how developers can quickly and easily tap these methods to identify database issues they may not even be aware of, and how they can build excellent data mining tools without spending a lot on expensive software licenses.

9 minute readContinue Reading

Join the Toptal® community.