Hackerrank sql intermediate problem solving. Medium SQL (Intermediate) Max Score: 30 Success Rate: 96.
Hackerrank sql intermediate problem solving · Add this topic to your repo To associate your repository with the hackerrank-sql-intermediate topic, visit your repo's landing page and select "manage topics. 76%. So, without wasting any time, let’s Medium SQL (Intermediate) Max Score: 30 Success Rate: 97. New Companies. Each solution is accompanied by comments for clarity, showcasing various approaches and optimizations. Programmers must first understand how a human solves a problem, then understand how to translate this "algorithm" into Feb 3, 2022 · Problem solving itself might at first seem like it’s taking a back seat. These solutions were completed during a test on August 21, 2023. Itertools. These concepts introduce more complex features and functionalities of SQL. Note: HackerRank supports several skills across all products. Hacker rank SQL intermediate solution. The skills directory contains a list of the skills and definitions of proficiency levels. Binary Tree Nodes. ; Add Explanations: Provide detailed explanations of code and problem-solving approaches. Unsolved. Alternative Queries. Sep 21, 2023 · Welcome back to Part 2 of our SQL Interview Preparation series with HackerRank! In this installment, we’re elevating our game as we dive into intermediate-level SQL questions. Challenges: 21, Attempts: 1022447, Mock Tests: 0. Problem Solving. ; Improve Join over 23 million developers in solving code challenges on HackerRank, one of the best ways to prepare for programming interviews. Preparation Kits View all kits. Java: Beginner. Easy SQL (Intermediate) Max Score: 30 Success Rate: 94. . Easy SQL (Basic) Max Score: 10 Success Rate: 99. You can find me on hackerrank here. You've arranged the problems in increasing difficulty order, and the i th problem has estimated difficulty level i. Basic Intermediate Advanced. Product Management Cross-functional Skills. business_expansion. - mahedei/Hackerrank-SQL-Intemediate-Skills-Certification-Test-Solutions. 14%. 0. sql and 2. I tried to provide those with explanation. Problem solved-6. About. You signed in with another tab or window. Solved 100+ SQL queries (Basic, Intermediate and Advance level) in HackerRank by using MySQL, MS SQL Server and Oracle. Here are a few examples of technical problem-solving questions: 1. Functional Programming. Watchers. I took the HackerRank test on 10/11/2023. 58%. 93%. Advanced Join. Accelerate your Job Search. 95%. Join over 16 million developers in solving code challenges on HackerRank, one of the best ways to prepare for programming interviews. 68%. HackerRank SQL Problem Solving Questions With Solutions # Related Topics: Easy SQL (Intermediate) Max Score: 30 Success Rate: 94. Solved. Top Competitors. Solve Challenge. The topics covered in this course are : SQL (Intermediate) SQL (Advanced) Difficulty. SQL (Intermediate) SQL (Advanced) Difficulty. Readme Activity. id, challenges. Mar 12, 2024 · The solutions of all the SQL challenges for all easy, medium and hard challenges on HackerRank executed on MySQL environment compiled with helpful Resources & references related to the challenges. Articles Works Shiny Snippets Resume About Contact. - Problem Solving Basic; SQL Intermediate; REST API Intermediate; Technical Communication; Code Quality; System Design; Typical years of experience. Medium SQL (Intermediate) Max Score Hard SQL (Intermediate) Max Score: 50 Success Rate: 85. BigNumber. Programmers must first understand how a human solves a problem, then understand how to translate this "algorithm" into Hard SQL (Intermediate) Max Score: 50 Success Rate: 85. We are the #1 global leader in developer assessment and helping companies understand and Join over 23 million developers in solving code challenges on HackerRank, one of the best ways to prepare for programming interviews. -End Developer (Django) Back-End Developer (Laravel) Back-End Developer (Node) Back-End Developer (Rails) Get started with HackerRank. Medium SQL (Intermediate) Max Score: 20 Success Rate: 96. Curate this topic Add this topic to your repo Easy SQL (Intermediate) Max Score: 30 Success Rate: 94. In this course we will be solving problems on the Northwind and AdventureWorks2012 database, and also along with that we will also solve some HackerRank SQL challenges. Data Structures. These challenges are designed to test You signed in with another tab or window. This intermediate SQL solution provides insights into product sales across cities, offering a comprehensive overview of customer spending patterns. But technical problem solving lies at the heart of programming, and most coding questions are designed to test a candidate’s problem-solving abilities. Hard SQL (Advanced) Max Score: 50 Success Rate: 78. Customer_spending. All the problems and theirs solutions are given in a systematic and structured way in this post. Regex. 74%. 03%. Join over 23 million developers in solving code challenges on HackerRank, one of the best ways to prepare for programming interviews. name, COUNT(submissions. The STATION table is described as Apr 22, 2021 · While solving all SQL problems from HackerRank, I came across multiple solutions for the same problem. Cannot retrieve latest commit at this These concepts introduce more complex features and functionalities of SQL. 4 stars. Sep 12, 2020 · 📗 Solutions of more than 380 problems of Hackerrank accross several domains. We use cookies to ensure you have the best browsing experience on our website. SQL (Intermediate) Skills Certification Test. Select By ID. Status. 8223 words 42 min read ––– views. · cracking-the-coding-interview algorithm-challenges coding-challenges hackerrank-sql. By detailing sales figures per city and identifying customers who spent 25% or less than the average, this solution aids in strategic decision-making for optimizing sales and customer engagement. N which you need to complete. 66%. 28%. Insert a node at the head of a linked list. 97%. SQL. Level up your coding skills and quickly land a job. sql & 2. Statistics. View on GitHub Hackerrank. About I have solved various HackerRank SQL problems using MySQL SQL (Intermediate) SQL (Advanced) Difficulty. Automated the process of adding solutions using Hackerrank Solution Crawler. SQL (Basic) SQL (Intermediate) SQL (Advanced) Difficulty. Try hard to solve the problems first without the hints! The information Oct 22, 2024 · SQL Practice Exercises for Intermediate. Please check 1. Problem-Solving Problem-Solving Beginner. Basic Data Types. The Report. View Skill Info. You signed out in another tab or window. Customer Spending. 33%. sql files for the solutions I submitted! This repository is dedicated to solving SQL challenges from HackerRank. Over 3,000 companies and 40% of developers worldwide use. This collection serves as a useful resource for improving SQL skills and problem-solving techniques. Aggregation. Join over 23 million developers in solving code challenges on HackerRank, one of the best ways to prepare for Hacker-Rank Problem Solving Intermediate C-solutions. Please check 1. " Learn more Mar 29, 2024 · You signed in with another tab or window. NET when we want to create a website or desktop app. ; Multiple Language Implementations: Add solutions in other programming languages. This repository contains my solutions for the HackerRank intermediate-level problems using MySQL. Revising the Select Query I. Solutions of more than 380 problems of Hackerrank across several domains. Published on November 5, 2020. Here, you’ll find: A variety of SQL problems: From beginner to advanced levels, covering key concepts like SELECT queries, JOINs, subqueries, window functions, and more. 83%. Introduction. Hacker-Rank C solutions for Intermediate Solutions provided passes all of the test cases except for a few questions. The results of the second query are ascendingly ordered first by number of names corresponding to each profession (2 ≤ 2 ≤ Oct 11, 2023 · Problem solved-6. The following is a list of possible problems per certificate. Add a description, image, and links to the hackerrank-problem-solving topic page so that developers can more easily learn about it. It includes efficient SQL queries, problem-solving techniques, and well-documented scripts. Easy Problem Solving (Intermediate) Max Score: 25 Success Rate: 81. Math. At HackerRank, we have worked with over 1500+ companies and conducted more than 20 Million developer assessments. 82%. I have taken This repository contains MySQL solutions of the HackerRank-SQL-Intermediate-Certificate problems which I encountered during the test. 1 watching. SQL-Business-Expansion and 2. Databases. African Cities. Each exercise includes clear explanations and Easy SQL (Intermediate) Max Score: 30 Success Rate: 94. Prepare for your upcoming programming interview with Interview Preparation Kit Join over 23 million developers in solving code challenges on HackerRank, one of the best ways to prepare for programming interviews. 98%. ; Well-documented solutions: Each solution includes a clear explanation of the approach and the query used to solve the problem. 3D Surface Area. 50%. section and make sure you understand the concepts. Hard SQL (Intermediate) Max Score: 50 Success Rate: 85. Key Competencies: Join over 23 million developers in solving code challenges on HackerRank, one of the best ways to prepare for programming interviews. Business_expansion. Oct 30, 2024 · Intermediate. Medium SQL (Basic) Max Score: 25 Success Rate: 98. 48%. It’s a collection of queries I’ve written to practice and improve my SQL skills. 29%. 99%. On each day, you will choose a subset of the problems and solve them. Basic Feb 20, 2023 · 3rd Query: “Challenges” Here’s the solution for the “Challenges” query problem on Hackerrank using SQL: SELECT challenges. com courses. SQL-Product-Sales-per-City files for the Oct 11, 2023 · GitHub - MahedeiHasan/Hackerrank-SQL-Intemediate-Skills-Certification-Test-Solutions: Solved queries for the Hackerrank SQL (Intermediate) Skills Certification Test 🎓. Mini-Max Sum Oct 11, 2023 · Solved queries for the Hackerrank SQL (Intermediate) Skills Certification Test 🎓. Object Oriented Programming. At its core, problem-solving focuses on the study, understanding, and usage of data structures and algorithms. Medium SQL (Intermediate) Max Score: 30 Success Rate: 96. Solutions to HackerRank practice, tutorials and interview preparation problems with Python, SQL, C# and JavaScript - nathan-abela/HackerRank-Solutions Easy SQL (Intermediate) Max Score: 30 Success Rate: 94. 6 min read. Exception Handling. Easy SQL (Basic) Max Score: 10 Success Rate: 95. Medium SQL (Intermediate) Max Score: 30 Success Rate: 97. 15%. Open main menu. Intermediate. Sets. 1 Week Preparation Kit. Join over 23 million developers in solving code challenges on HackerRank, one of the best ways to Jul 20, 2024 · We welcome contributions to enhance this collection of HackerRank 30 Days of Code solutions: Improve Existing Solutions: Optimize or clarify current solutions. Advanced Select. To get a certificate, two problems have to be solved within 90 minutes. Apr 21, 2023 · Add this topic to your repo To associate your repository with the hackerrank-sql-problems topic, visit your repo's landing page and select "manage topics. Feb 29, 2024 · Try solving those 20 SQL practice problems! In this article, I have selected 20 SQL practice problems from beginner- and intermediate-level LearnSQL. Give a star For my work. Nov 5, 2020 · Post displaying HackerRank sql problem solving questions and solution. Easy Problem Solving (Intermediate) Max Score: 20 Success Rate: 80. 49%. Medium Problem Solving (Intermediate) Max Score: 20 Success Rate: 83. These exercises are designed to challenge you beyond basic queries, delving into more complex data manipulation and analysis. Medium SQL (Intermediate) Max Score: 40 Success Rate: 95. This competency area includes basic data structures and algorithms. These exercises cover fundamental to more advanced concepts, giving you a gradual progression towards becoming a proficient SQL user. The certificate can be viewed here. Feel free to explore the solutions and the approach I took to solve these challenges. Caesar Cipher. Solve Challenge About. Challenges: 21, Attempts: 1014302, Mock Tests: 0. You have also assigned a rating vi to each problem. They are essential for building more sophisticated and robust queries, managing data relationships, and Apr 1, 2023 · Here are the 2 questions asked in HackerRank SQL Intermediate Certification Exam, these 2 will be available in one attempt. Skills. Swift. Easy Problem Solving (Intermediate) Max Score: 5 Success Rate: 95. customer_spending. The solutions are organized by topics and updated regularly as I solve new problems. · mysql challenge sql solutions tutorials hackerrank problem-solving hackerrank-solutions hackerrank-challenges hackerrank-sql hackerrank-sql-solutions mysql-environment sql-challenges select-challenges. 85%. Please checkout my solutions and make use of it for the learning purpose Hard SQL (Intermediate) Max Score: 50 Success Rate: 85. After your test cases get passed!!!! Happy Learning!!!! Easy SQL (Intermediate) Max Score: 30 Success Rate: 94. 1 Month Preparation Kit. Subdomains. Weather Observation Station 4 | Easy | HackerRank Find the difference between the total number of CITY entries in the table and the number of distinct CITY entries in the table. Basic Join. There are N problems numbered 1. 04%. The test consisted of two questions that I had 35 minutes to solve. This repository contains MySQL solutions of the HackerRank SQL Intermediate Certificate problems which I encountered during the test. This repository features solutions to various intermediate-level SQL challenges from HackerRank. hacker_id) as total Join over 23 million developers in solving code challenges on HackerRank, one of the best ways to prepare for programming interviews. Problems with similar vi values are similar in nature. Easy. Get Certificate. Business Expansion. Solving problems is the core of computer science. " Learn more Verify your Problem Solving Skills. Jan 20, 2024 · Solutions to Certification of Problem Solving Basic on Hackerrank. They are essential for building more sophisticated and robust queries, managing data relationships, and optimizing query performance. This is the best place to expand your knowledge and get prepared for your next interview. This is a documentation of my Hackerrank solution for: Problem Solving (Intermediate) Certification solution Test duration: 90 minutes Number of questions: 2 SQL (Intermediate) SQL (Advanced) Difficulty. Contains solved queries for the Hackerrank SQL (Intermediate) Skills Certification Test 🎓. Stored Procedure tries to solve this major problem while developing a website. If you do, start working on the Intermediate Problems section. Easy Problem Solving (Basic) Max Score: 15 Success Rate: 86. Basic Select. Expert. Verify your SQL Skills. Verify your Problem Solving Skills. 15 Days of Learning SQL. 08%. Easy SQL (Basic) Max Score: 10 Success Rate: 98. 84%. In . 39%. 91%. 02%. Problem Solving (Intermediate) Skills Certification Test. 2 Questions are asked, as of now 2 questions will be asked from these questions, provided the solution also: Solved queries Easy SQL (Intermediate) Max Score: 30 Success Rate: 94. Jan 10, 2025 · Hello coders, in this post you will get all the solution of HackerRank SQL Solutions. Hacker-Rank C solutions for Intermediate Resources. Reload to refresh your session. Storage. Medium. Hard. Problem-Solving SQL: Beginner. You switched accounts on another tab or window. This repository contains my SQL solutions to problems from platforms like HackerRank. It took me a bit more than two weeks (on and off between work, This repository contains my SQL solutions to HackerRank challenges, organized by difficulty: Easy, Medium, and Hard. Guestbook. 2 Questions are asked, as of now 2 questions will be asked from these questions Easy SQL (Intermediate) Max Score: 30 Success Rate: 94. Forks. If you’re uncertain about how to start on a problem, the hints are designed to gradually walk you through how to approach each problem. This repository contains MYSQL solutions of HackerRank-SQL-Intermediate-Certificate problems which I encountered during the test . Problem Solving (Basic) Python (Basic) Problem Solving (Advanced) Python (Intermediate) Difficulty. Weather Observation Station 20. This course is meant for all levels, so whether you are a beginner, intermediate or advanced you can still take this course. Programmers must first understand how a human solves a problem, then understand how to translate this "algorithm" into Join over 23 million developers in solving code challenges on HackerRank, one of the best ways to prepare for programming interviews. 65%. 5 forks. Oct 19, 2021 · Current projects at work require more SQL skills, so I took the time to brush up my SQL knowledge using the HackerRank coding challenges platform. sql files for the solutions Join over 23 million developers in solving code challenges on HackerRank, one of the best ways to prepare for programming interviews. Strings. Compute a Difference(Delta This repository contains MYSQL solutions of HackerRank-SQL-Intermediate-Certificate problems which I encountered during the test . Jun 22, 2023 · 19. Problem Solving (Basic) Problem Solving (Intermediate) +1. Weather Observation Station 18. The questions asked are Invoices Per Country and Product Sales Per City. Problem Easy SQL (Intermediate) Max Score: 30 Success Rate: 94. We use cookies to ensure you have the best browsing Nov 5, 2020 · The results of the first query are formatted to the problem description's specifications. sql files for the solutions I submitted! Hard SQL (Intermediate) Max Score: 50 Success Rate: 85. Stars. Linux Shell. Report repository Problem Solving (Intermediate) Difficulty. mgvohii ieavba roivxr smcql hfwzz xgxv mjwvt rmh nwdpgne djmsgz