Counting Distinct Items with Conditions and GROUP BY in SQL

Mastering SQL: DISTINCT for Two Out of Three Columns Made Simple

These are the SQL questions that I practiced to pass technical rounds for data science interviews at both meta and Netflix. While the questions here and in the interviews were not technically challenging, they do test your attention to detail and your thought process. Be sure to talk through your work as you code! #datascience #dataanalyst #sql #codinginterview #techinterview

SQL (Sequel) là gì?

Understanding WHERE 1=1 in SQL Queries