Hands-on SQL portfolio of 105 real-world problems showcasing analytical precision, performance tuning, and query mastery.

💻 Daily solutions to LeetCode’s top 50 SQL problems 🧩 Well-structured queries with comments covering JOINs, GROUP BY, Window Functions, Subqueries & Aggregations 🚀 Perfect for practice, learning & interview prep

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.

Synthetic grocery retail dataset ...

🐼 Aprende SQL resolviendo el misterio del secuestro de Chipi. Proyecto educativo gratuito con retos progresivos: SELECT, JOINs, CTEs, Window Functions. Incluye guías paso a paso sin dar soluciones. Creado con 💜 por Anaïs Rodríguez Villanueva

A personal learning repository for exploring Microsoft SQL Server — writing queries, solving SQL challenges, and documenting key concepts while improving database skills.

🌐 Dive into DBMS BASICS! A complete guide to mastering Database Management Systems 📚💻. Perfect for students & professionals to grasp core concepts, practices, & implementation 🚀. Unlock the power of data management today! 🔑✨

This repository documented my journy solving SQl problems in multi websites like LeetCode and Hacker Rank

A daily SQL learning journal with structured practice problems, raw data files, and query solutions.

Simple databases for practicing MySQL

A complete SQL practice project covering A to Z queries including table creation, joins, aggregate functions, string operations, and timestamp handling. Built using customer and payment datasets to simulate real-world scenarios.

Practice intermediate and advanced SQL exercises using my curated ChatGPT prompt.

A MySQL-based Restaurant Management database with schema, sample data, and 30 real-world SQL exercises. Designed for practicing complex queries and managing restaurant operations using tools like MySQL and DBeaver.

A collection of real-world SQL practice questions with solutions, designed to strengthen query skills for data analysis and business insights. Includes scenarios for aggregation, joins, filtering, and advanced SQL techniques.

A repository where I present the solutions to the technical challenges on SQL-practice.com. The solutions include challenges from two distinct databases: hospital & northwind.

Hands-on SQL practice tasks and database operations performed during NAVTTC training sessions and personal learning. The examples cover various database concepts such as DDL, DML, sequences, auto-increment, window functions, importing data from CSV, and more using **MySQL**

SQL exercise solutions for SQLZoo and HackerRank - with explanations. MySQL dialect. Great for learning SQL and MySQL.

A work-in-progress open-source SQL practice project featuring a realistic sample database, sample data, and practical SQL exercises for hands-on learning and

SQL stash from LeetCode, GFG & HackerRank — synced so you don’t have to sweat it!

Oracle 기반 SQL 문법, DML/DDL/TCL/DCL, 서브쿼리, 인라인뷰, 조인, 뷰, 시퀀스, 트랜잭션, PL/SQL까지 폭넓게 다루는 실습 중심 SQL 연습 프로젝트입니다.