SQL Articles

Terence Shin

Updated on February 26, 2024

Data science interviews encompass a variety of challenging questions to test your knowledge in machine learning, probability, SQL and more. Hone your skills with these questions.

Max Reynolds

Updated on October 05, 2023

SOQL is Salesforce’s proprietary programming language that’s used to query data directly from your Salesforce. SQL is a language used to query data from a general database. Here’s what you need to know.

Jonathan Moore

Updated on September 12, 2023

Creating a new user involves defining the user's credentials and privileges. Follow these steps to create a new user in MySQL.

Aashish Nair

Updated on August 03, 2023

Take the time to understand how the clauses in SQL are evaluated. We discuss the order of execution in SQL and why it matters.

Merlin Schäfer

Updated on August 02, 2023

With the array, PostgreSQL allows columns of a table to be defined as variable-length multidimensional arrays. 

Jye Sawtell-Rickson

Updated on March 15, 2023

Whether you’re applying to new jobs or trying to upskill in your current role, SQLZoo is a great place to hone your skills. Here’s how to get started.

Terence Shin

Updated on March 15, 2023

Learn 10 advanced SQL concepts you should know for data science interviews to take your SQL skills to the next level.

Abdishakur Hassan

Updated on March 15, 2023

SQLite is a software library that provides a lightweight, embeddable database engine. Here’s how it works.

Manuel Silverio

Updated on March 15, 2023

Relational databases (SQL databases) are organized collections of data that are structured to recognize relationships between records.

Sara A. Metwalli

Updated on March 15, 2023

MySQL is a relational database management system that stores all the information you need to run complex websites. Here’s how it works.