Key Takeaways Interviews for data analysts test technical and business understanding.Practicing real examples helps you ...

Data queries written in Python, a commonly used programming language, can grind data analytics platforms to a crawl, but a new platform may finally solve the Python efficiency problem.

SQL is neither the fastest nor the most elegant way to talk to databases, but it is the best way we have. Here’s why Today, Structured Query Language is the standard means of manipulating and ...

Ahana Cloud for Presto turns a data lake on Amazon S3 into what is effectively a data warehouse, without moving any data. SQL queries run quickly even when joining multiple heterogeneous data sources.

Anyone who can write a simple SQL query can begin prototyping queries for Hadoop data sets today on their desktop and view the results in the visualization tool of their choice, such as Excel ...