Solutions to Problems For SQL on Leetcode, Hackerrank & DataLemur

SQL skills challenge. A small but complete, beginner friendly project to practice basic/intermediate SQL skills.

An SQL analysis exploring the relationship between reported crimes in Chicago and the average daily temperature from 2018 through 2023.

An SQL data cleaning project

A list of the most common entry level SQL interview questions and answers.

SQL Case study solutions for #8WeekSQLChallenge by Danny Ma

An SQL analysis of traffic accidents within the City of Chicago limits and under the jurisdiction of Chicago Police Department (CPD).

Aliens of America. A portfolio building dataset provided by Ian K. on LinkedIn.

SQL/MySQL Cheatsheet and Practice Questions

i tried to solve as many tasks as possible to make my SQL skills better

Sql practice from cs50 course

Dictionary Challenge: An SQL project using basic/intermediate SQL practices with one column of English words.

A dataset used to explore work-related fatalities in the United States.

One SQL problem a day for a year

This repository serves as a collection of diverse and intriguing SQL questions and their Solutions congregated from Leetcode, Data Lemur, various Companies' Interview Questions Data, and various YouTube Channels and blogs.

This is a SQL Database program designed to run in Termux on Android devices. The program allows you to interact with SQL databases directly from your phone using Python. It features a simple, interactive command-line interface (CLI) to practice SQL queries, take quizzes, and track your progress.

Sales analysis over a PostgreSQL database, aiming to discover diverse insights. Identify best seller products, biggest customers, and sales growth rate

Relational databases path to mastery

An end-to-end business analytics SQL portfolio built on a custom e-commerce database — designed to answer real business questions about customers, revenue, retention, and product performance using advanced SQL techniques.

SQL Case Files is a free interactive SQL game that teaches SQL through crime-solving challenges. Learn SQL online with hands-on puzzles, realistic datasets, SQL practice exercises, and a full browser-based SQLite database. Perfect for beginners learning SQL, data analysts preparing for interviews, and anyone who wants to practice SQL for free.