My solutions to the LeetCode SQL 50 Study Plan using MySQL.
This repository contains my solutions to the LeetCode SQL 50 Study Plan.
The purpose of this repository is to:
- 💡 Improve SQL problem-solving skills.
- 🛢️ Practice MySQL queries.
- 📚 Prepare for coding interviews.
- 🎯 Build a strong SQL reference.
- Recyclable and Low Fat Products
- Find Customer Referee
- Big Countries
- Article Views I
- Invalid Tweets
- Replace Employee ID With The Unique Identifier
- Product Sales Analysis I
- Customer Who Visited but Did Not Make Any Transactions
- Rising Temperature
- Average Time of Process per Machine
- Employee Bonus
- Students and Examinations
- Managers with at Least 5 Direct Reports
- Confirmation Rate
- Not Boring Movies
- Average Selling Price
- Project Employees I
- Percentage of Users Attended a Contest
- Queries Quality and Percentage
- Monthly Transactions I
- Immediate Food Delivery II
- Game Play Analysis IV
- Number of Unique Subjects Taught by Each Teacher
- User Activity for the Past 30 Days I
- Product Sales Analysis III
- Classes With at Least 5 Students
- Find Followers Count
- Biggest Single Number
- Customers Who Bought All Products
- The Number of Employees Which Report to Each Employee
- Primary Department for Each Employee
- Triangle Judgement
- Consecutive Numbers
- Product Price at a Given Date
- Last Person to Fit in the Bus
- Count Salary Categories
- Employees Whose Manager Left the Company
- Exchange Seats
- Movie Rating
- Restaurant Growth
- Friend Requests II: Who Has the Most Friends
- Investments in 2016
- Department Top Three Salaries
- Fix Names in a Table
- Patients With a Condition
- Delete Duplicate Emails
- Second Highest Salary
- Group Sold Products By The Date
- List the Products Ordered in a Period
- Find Users With Valid E-Mails
| Status | Progress |
|---|---|
| ✅ Solved Problems | 50 / 50 |
| 🏅 Badge | LeetCode SQL 50 |
| 💻 Language | MySQL |
- SQL
- MySQL
- LeetCode
This repository is created to:
- 📚 Practice SQL.
- 💼 Prepare for technical interviews.
- 🚀 Track my progress.
- 💡 Help others learn SQL.
If you found this repository helpful or inspiring, consider giving it a ⭐.
It motivates me to keep learning and sharing more solutions.
💛 LeetCode: https://leetcode.com/u/DoniaEid/
| 0175-combine-two-tables |