Customized Remote Work Solutions From the World’s Largest Fully Remote CompanyCustomized Remote Work SolutionsLearn More

Database

Showing 1-9 of 26 results
EngineeringIcon ChevronData Science and Databases

How to Implement a Data Quality Process

by Alexander Hauskrecht

Data quality is a crucial element of any successful data warehouse solution. As the complexity of data warehouses increases, so does the need for data quality processes. In this article, Toptal Data Quality Developer Alexander Hauskrecht outlines how you can ensure a high degree of data quality and why this process is so important.

16 minute readContinue Reading
EngineeringIcon ChevronBack-end

SQL Indexes Explained, Pt. 2

by Mirko Marović

Sorting a table can make some queries faster—but the maintenance cost is untenable. Enter real database indexes and their most common implementation structure: the B-tree.

10 minute readContinue Reading
EngineeringIcon ChevronBack-end

SQL Indexes Explained, Pt. 1

by Mirko Marović

Properly used, an SQL database index can be so effective that it might seem like magic. But the following series of exercises will show that underneath, the logic of most SQL indexes---and wielding them correctly---is quite straightforward.

8 minute readContinue Reading
EngineeringIcon ChevronData Science and Databases

Turn Chaos Into Profit: Understanding the ETL Process

by Alexandre Wanderer

ETL can consolidate data from various sources into an organized, reliable, and usable database. This allows businesses to employ previously unused or underused data to improve their performance. In this article, Toptal Data Modeling Developer Alexandre Wanderer demonstrates all stages of the ETL process in building a data warehouse.

8 minute readContinue Reading
EngineeringIcon ChevronData Science and Databases

Oracle to SQL Server and SQL Server to Oracle Migration Guide - Pt. 3

by Leonid Draginsky

Migrating in either direction between Microsoft SQL Server and Oracle Database? Code migration tools, public synonyms, and change management are important to keep in mind.

14 minute readContinue Reading
EngineeringIcon ChevronData Science and Databases

Oracle to SQL Server and SQL Server to Oracle Migration Guide - Pt. 2

by Leonid Draginsky

Migrating in either direction between Microsoft SQL Server and Oracle Database? This round of pitfalls to avoid includes coverage of sequences, identity columns, and filtered indexes.

8 minute readContinue Reading
EngineeringIcon ChevronData Science and Databases

When Does it Make Sense to Use Google BigQuery?

by Maksym Goroshkevych

What do you do when you come across a dataset that’s simply too big to allow fast queries? Google BigQuery could be part of the solution, though it’s no silver bullet. In this article, Toptal Java Developer Maksym Goroshkevych explains how BigQuery can drastically improve query performance, and when you should and should not use it.

10 minute readContinue Reading
EngineeringIcon ChevronTechnology

Angular 6 Tutorial: New Features with New Power

by Joaquin Cid

Angular 6 is out! The most outstanding changes are in its CLI and how services get injected. In this tutorial, Toptal Freelance Angular Developer Joaquin Cid goes over the basic steps of initial setup and then creates a small diary app using Material Design for the front end and Firebase for the back end.

16 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

Join the Toptal® community.