Remove Aggregated Data Remove Data Architect Remove NoSQL
article thumbnail

14 Best Database Certifications in 2023 to Boost Your Career

Knowledge Hut

Over the past decade, the IT world transformed with a data revolution. The rise of big data and NoSQL changed the game. Systems evolved from simple to complex, and we had to split how we find data from where we store it. Skills acquired : Relational database concepts Retrieving data using the SQL SELECT statement.

article thumbnail

100+ Data Engineer Interview Questions and Answers for 2023

ProjectPro

Read more for a detailed comparison between data scientists and data engineers. How is a data architect different from a data engineer? Data architect Data engineers Data architects visualize and conceptualize data frameworks. How did you go about resolving this?

article thumbnail

The Modern Data Stack: What It Is, How It Works, Use Cases, and Ways to Implement

AltexSoft

Databases store key information that powers a company’s product, such as user data and product data. The ones that keep only relational data in a tabular format are called SQL or relational database management systems (RDBMSs). Joining: combining data from multiple sources based on a common key or attribute.

IT 59