Contains solutions for #8WeekSQLChallenge case studies https://8weeksqlchallenge.com/

sql practice-sql 8weeksqlchallenge 8-week-sql-challenge

• Updated May 31, 2022

In this repository, we have SQL problems for practice from beginner level to advanced level using a fictitious database 'Worldwide importers'.

sql data-analysis sql-server-management-studio worldwideimporters-database practice-sql

• Updated May 21, 2025

Case study solutions to the #8WeekSQLChallenge

sql postgresql data-analytics data-analysis case-study-analysis practice-sql 8weeksqlchallenge 8-week-sql-challenge sql-case-study

• Updated Oct 24, 2025

Solutions for common SQL questions in interviews.

interview pgsql hackerrank-sql practice-sql hackerrank-sql-certificate

• Updated Nov 20, 2023
• PLpgSQL

This repository contains 50 queries and answers of the popular northwind database carried out in SSMS.

microsoft sql-server ssms northwind-sql-database practice-sql

• Updated Apr 20, 2022
• TSQL

sql solutions for app.bigtech

sql postgresql interview practice-sql

• Updated Sep 20, 2025

Some SQL exercises - UIT

backup practice-sql

• Updated Nov 30, 2022
• TSQL

A structured and practical SQL learning and practice repository designed for beginners, students, self-learners, developers, data analysts, and anyone preparing for SQL interviews.

sql sql-practice practice-sql

• Updated Oct 11, 2026

I learned SQL under Udacity Introduction to Data Science nanodegree program. I also used Hackerrank to practice the queries i learned.

learning udacity sql database hackerrank beginner-friendly udacity-nanodegree practice-project hackerrank-sql hackerrank-sql-solutions udacity-data-science-nanodegree practice-sql

• Updated Oct 16, 2021

sql hackerrank hackerrank-challenges hackerrank-sql practice-sql hackerrank-solutions-sql

• Updated Jun 12, 2023
• SQL

Case study solutions for #8weekstudychallenge. 🍽 danny's dinner.

sql microsoft-sql-server case-study practice-sql 8weeksqlchallenge 8-week-sql-challenge

• Updated Oct 27, 2022
• TSQL

This tool translates SQL Server stored procedures into PL/pgSQL, allowing for smooth operation on PostgreSQL. It also retains procedure names in the migration script for better clarity during the migration process

sql-server sql-schema schema-conversion ora2pg practice-sql ispirer-toolkit-migrator-free

• Updated Nov 12, 2026
• C++

Solutions to short SQL case studies

mysql sql data-analytics data-analysis db-fiddle practice-sql sql-casestudy

• Updated Apr 20, 2026

Interactive SQL interview practice tool — Wizardly curated questions, in-browser DuckDB engine, hints, answers, and a SQL Tricks Booklet. Built with Streamlit.

ui-design practice sql database sql-query sqlite3 practice-programming practice-sql

• Updated Jul 7, 2026
• Python

Solutions to SQL interview questions and practice problems

sql leetcode codewars leetcode-solutions sql-interview-questions practice-sql datalemur datalemur-solutions

• Updated Dec 30, 2025

These are practice problems from HackerRank involving different components of writing SQL queries.

mysql sql hackerrank practice-sql

• Updated May 4, 2021
• Jupyter Notebook