{"id":29364225,"url":"https://github.com/cyberoctane29/hackerrank-sql-problem-solving","last_synced_at":"2026-03-15T08:14:08.196Z","repository":{"id":259163376,"uuid":"876222793","full_name":"Cyberoctane29/HackerRank-SQL-Problem-Solving","owner":"Cyberoctane29","description":"This repository includes my SQL problem-solving approach and solutions to HackerRank challenges, organized by difficulty level: Easy, Medium, and Hard. Each challenge has its own solution file with clear explanations to make the reasoning easy to follow. 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**Basic**\n  - **Intermediate**\n  - **Advanced**\n- **Medium**\n  - **Basic**\n  - **Intermediate**\n  - **Advanced**\n- **Hard**\n  - **Intermediate**\n  - **Advanced**\n\nEach problem has its own dedicated SQL file, which includes:\n\n- **Problem Explanation** – A brief overview of the problem statement.\n- **Solution Intuition** – The thought process and reasoning behind the approach taken.\n- **SQL Query** – A well-structured solution to the problem.\n- **Alternative Solutions** (if applicable) – Some problems feature multiple solutions for optimization or to explore different approaches.\n\n## Why This Repository?\n\nThis collection serves as a structured reference for:\n\n- Learning **SQL techniques** through real-world problems.\n- Understanding different ways to solve SQL queries efficiently.\n- Exploring **query optimizations** and alternative methods for better performance.\n- Gaining insights into **SQL patterns** commonly used in technical interviews.\n\n## Repository Structure\n\n```sql\n-- Hackerrank-SQL-Solutions/\n-- │── Easy/\n-- │   ├── Easy-Basic/\n-- │   │   ├── problem_name_1.sql\n-- │   │   ├── problem_name_2.sql\n-- │   ├── Easy-Intermediate/\n-- │   │   ├── problem_name_3.sql\n-- │   │   ├── problem_name_4.sql\n-- │   ├── Easy-Advanced/\n-- │   │   ├── problem_name_5.sql\n-- │   │   ├── problem_name_6.sql\n-- │── Medium/\n-- │   ├── Medium-Basic/\n-- │   │   ├── problem_name_7.sql\n-- │   │   ├── problem_name_8.sql\n-- │   ├── Medium-Intermediate/\n-- │   │   ├── problem_name_9.sql\n-- │   │   ├── problem_name_10.sql\n-- │   ├── Medium-Advanced/\n-- │   │   ├── problem_name_11.sql\n-- │   │   ├── problem_name_12.sql\n-- │── Hard/\n-- │   ├── Hard-Intermediate/\n-- │   │   ├── problem_name_13.sql\n-- │   │   ├── problem_name_14.sql\n-- │   ├── Hard-Advanced/\n-- │   │   ├── problem_name_15.sql\n-- │   │   ├── problem_name_16.sql\n```\n\n## Example Solution Format\n\n```sql\n-- Problem: [Problem Title]\n-- Difficulty: [Easy/Medium/Hard]\n\n-- SQL Schema\n-- Table: [Table Name]\n-- +-------------+---------+\n-- | Column Name | Type    |\n-- +-------------+---------+\n-- | column_1    | type    |\n-- | column_2    | type    |\n-- +-------------+---------+\n-- [Primary key and other constraints]\n\n-- Problem Statement\n-- [Provide a brief problem description.]\n\n-- Solution:\n-- [Explain the approach used in the solution.]\n\nSELECT column_1, column_2\nFROM TableName\nWHERE some_condition;\n\n-- Intuition:\n-- [Describe the core idea behind solving this problem. Explain the thought process used to arrive at the solution.]\n\n-- Explanation:\n-- [Explain why this approach works effectively and break down the logic of the code step by step.]\n```\n\nWhether you're just starting with SQL or looking to refine your skills, I hope this resource helps you tackle real-world problems and improves your problem-solving ability.\n\nLet’s learn and grow together! 🚀 Happy coding! 🎯\n","project_url":"https://awesome.ecosyste.ms/api/v1/projects/github.com%2Fcyberoctane29%2Fhackerrank-sql-problem-solving","html_url":"https://awesome.ecosyste.ms/projects/github.com%2Fcyberoctane29%2Fhackerrank-sql-problem-solving","lists_url":"https://awesome.ecosyste.ms/api/v1/projects/github.com%2Fcyberoctane29%2Fhackerrank-sql-problem-solving/lists"}