SQL Practice

Daily SQL problem-solving to build interview-ready fluency and earn the HackerRank SQL Intermediate badge.

📊 Progress

Platform	Problems Solved	Status
HackerRank	3	🟡 In Progress
DataLemur	29	🟡 In Progress
StrataScratch	0	⬜ Not Started

Total: 32 problems solved

🎯 Targets

• HackerRank SQL Basic Badge
• HackerRank SQL Intermediate Badge
• 50+ problems by end of August
• 100+ problems by end of September

📁 Structure

hackerrank/
├── basic-select/
├── aggregation/
├── basic-join/
├── advanced-select/
├── advanced-join/
└── alternative-queries/
datalemur/
├── easy/
├── medium/
└── hard/
stratascratch/
├── easy/
├── medium/
└── hard/

Each .sql file is named after the problem and contains:

1. The SQL solution
2. A comment with the problem name, difficulty, and approach

🔗 Profiles

• DataLemur
• HackerRank
• StrataScratch