Following this free SQL program will equip you with the essential skills and knowledge needed to tackle any SQL-related questions confidently during interviews. The program is meticulously designed to cover all fundamental and advanced SQL concepts.By the end of the path, you’ll not only be interview-ready but also possess the practical expertise to solve real-world database challenges, boosting your confidence and competence in any professional setting.
- Database Theory
- Brushing up SQL Basics
- Problem 1 : Histogram of Tweets
- Problem 2: Data Science Skills
- Problem 3: Teams Power Users
- Problem 4: Second Day Confirmation
- Problem 5: Cards Issued Difference
- Problem 6: Patient Support Analysis (Part 1)
- Problem 7: Who Made Quota?
- Problem 8: Compressed Mean
- Problem 9: App Click-through Rate (CTR)
- Problem 10: Cities With Completed Trades
- Brushing Up Advance Concepts:
- Problem 11: User’s Third Transaction
- Problem 12: Second Highest Salary
- Problem 13: Sending vs. Opening Snaps
- Problem 14: Tweets’ Rolling Averages
- Problem 15: Signup Activation Rate
- Problem 16: Highest-Grossing Items
- Problem 17: Supercloud Customer
- Problem 18: Odd and Even Measurements
- Problem 19: Card Launch Success
- Problem 20: Swapped Food Delivery
- Problem 21: Active User Retention
- Problem 22: Y-on-Y Growth Rate
- Problem 23: Maximize Prime Item Inventory
- Problem 24: Median Google Search Frequency
- Problem 25: Advertiser Status
- Problem 26: 3-Topping Pizzas
- Problem 27: Repeated Payments
- Problem 28: Server Utilization Time
- Problem 29: Department vs. Company Salary
- Problem 30: Top 5 Artists
- Interview Experiences & Guidance