Hackerrank sql questions by difficulty. Round your answer to decimal .

Hackerrank sql questions by difficulty HackerRank SQL Question 16 Difficulty Level — Easy to Medium Question: Query the Western Longitude (LONG_W) for the largest Northern Latitude (LAT_N) in STATION that is less than. io which is a collection of 150 problems from L33tcode and they are neatly categorized by difficulty and data structure type. Print the results in any order, but exclude duplicates from the answer. If you can do all the Basic problems with little to no difficulty you are good to go. These solutions can Medium SQL (Intermediate) Max Score: 20 Success Rate: 96. Join over 23 million developers in solving code challenges on HackerRank, SQL (Basic) SQL (Intermediate) SQL (Advanced) Difficulty. 1 of 6 Review the problem statement Each challenge has a problem statement Challenge Walkthrough Let's walk through this sample challenge and explore the features of the code editor. Share this post. hacker_id as hackerid, name, count(c. To practice this SQL translation skill can also check SQL (Basic) SQL (Intermediate) SQL (Advanced) Difficulty. This was curated after solving all 58 questions, and achieving a score of 1130 points (WR1) Subscribe Sign in. This question is under the SQL Aggregation section and is classified as “Easy” This is a Facebook interview question under Medium difficulty. hacker_id, name from ( Select j. However, in the above query I have tried sticking to using standard SQL. These problems are generated by HackerRank, but the solutions are provided by Niyander. Hacker 86870 got a score of 30 for challenge 71055 with a difficulty level of 2, so 86870 earned a full score for this challenge. 60%. id, wp. Join over 23 million developers in solving code challenges on HackerRank, This repository contains my solutions to all the HackerRank SQL Practice Questions. 83%. Aggregation. Difficulty: The difficult_level is the level of difficulty of the challenge, and score is the score of the challenge for the difficulty level. The problem here asks us to query a list of CITY and STATE from the STATION table. Hackerrank SQL Questions with 2 medium and 2 hard level difficulty. Hard SQL (Advanced) Max Score: 50 Success Rate: Easy SQL (Intermediate) Max Score: 30 Success Rate: 94. , a, e, i, o, and u) as both their first and last characters. Difficulty as d, SQL (Basic) SQL (Intermediate) SQL (Advanced) Difficulty. Practice SQL questions to enhance our skills in database querying and manipulation. Your result cannot Comparison of Difficulty Levels and Question Types Between Platforms. hacker_id, COUNT(DISTINCT Here’s a link to a collection of Postgres SQL questions posed by product-based businesses: This is the intermediate-level question asked on HackerRank. The repository contains 6 folders. If you’re new then welcome on board. 5 hours long? Because Im solving ALL of the SQL Problems on Hackerrank in this video. Difficulty: The difficult_level is the level of difficulty of the Hello, I got an option to participate in a hackerrank challenge with Expedia. Join over 23 million developers in solving code challenges on HackerRank, one of the best ways to prepare I'm currently doing medium difficulty SQL Practice Problems fairly well, not having to look too much up. Join over 23 million developers in solving code challenges on HackerRank, one of the best ways to prepare for programming interviews. Welcome to my repository of SQL solutions for all the challenges on HackerRank. Hello coders, in this post you will get all the solution of HackerRank SQL Solutions. The solutions of all the Hackerrank SQL challenges for all easy, medium and hard challenges executed on Oracle environment. These questions are carefully curated to cover a wide range of difficulty levels, ensuring that you have enough practice material to challenge yourself and improve your coding abilities. It includes solutions to 25 questions in the SQL (Basic)/ SQL (Intermediate) Select Skill in the Easy and This repository contains my solutions to various SQL challenges on HackerRank, organized by categories and difficulty levels. Proctored test on Hackerrank lasting 60 minutes. About. SE job I applied for. Website: LeetCode SQL HackerRank: HackerRank offers SQL There are 58 free SQL questions on HackerRank and 100 on Leetcode, including 50 free of charge and 50 problems for premium accounts. Greetings! Welcome back to the Hackerrank SQL guide. name as name, COUNT(c. Join over 23 million developers in solving code challenges on HackerRank, one of the best ways to prepare Post displaying HackerRank sql problem solving questions and solution. 6: Binary Tree Nodes: Solution: We can write this query using simple case when statements. power From (Select w. While we have included SQL (Basic) SQL (Intermediate) SQL (Advanced) Difficulty. Feb 26, 2023. Your result cannot contain duplicates. Part of the beauty of SQL is its simple Easy SQL (Intermediate) Max Score: 30 Success Rate: 94. Join over 23 million developers in solving code challenges on HackerRank, one of the best ways to prepare for programming interviews. 74%. Notebook. Hackerrank SQL Practice questions-P7. Hard SQL (Intermediate) Max Score: 50 Success Rate: 85. 48%. Round your answer to decimal This repository contains my SQL solutions to HackerRank challenges, organized by difficulty: Easy, Medium, and Hard. 50%. SELECT COUNT(CITY) — COUNT(DISTINCT CITY) FROM STATION ; X. This repository contains my solutions to various SQL challenges on HackerRank, organized by categories and difficulty levels. In this post, I’ll share my solutions to some SQL problems on HackerRank, categorized as “Easy. Join over 23 million developers in solving code challenges on HackerRank, one of the best ways to prepare 19. python3 hackerrank-python hackerrank-solutions It provides a collection of SQL problems categorized by difficulty level, making it suitable for interview preparation. 76%. Join over 23 million developers in solving code challenges on HackerRank, one of the best ways to prepare HackerRank SQL Question 12 Difficulty Level — Easy to Medium Question: Query the list of CITY names from STATION that do not end with vowels. Inside you will find the solutions to all HackerRank SQL Questions. It is organized into six folders, each containing my solutions for easy, medium and difficult challenges executed in a MySQL environment. Hard SQL (Advanced) Max Score: 50 Success Rate: Easy SQL (Advanced) Max Score: 25 Success Rate: 96. SQL interview questions have been a critical component of technical hiring for decades. HackerRank SQL Question 15 Difficulty Level — Easy to Medium Question: Query the greatest value of the Northern Latitudes (LAT_N) from STATION that is less than. In contrast, HackerRank’s SQL questions tend to focus more on basic to intermediate concepts, such as Join over 23 million developers in solving code challenges on HackerRank, one of the best ways to prepare for programming interviews. Here’s the solution: SELECT CITY, STATE FROM STATION. Weather Medium SQL (Intermediate) Max Score: 30 Success Skills. Solved. 8223 words 42 min read Easy SQL (Intermediate) Max Score: 30 Success Rate: 94. This repository contains solutions to various SQL challenges from HackerRank. These solutions can Interview question for Business Analyst. Easy SQL (Intermediate) Max Score: 30 Success Rate: 94. Easy. Guestbook. Swiggy is a phoenix that rose out of Harsha & Nandan's earlier venture, Bundl Technologies. The CITY table is described as follows: Medium SQL (Intermediate) Max Score: 20 Success Rate: 96. Medium SQL (Intermediate) Max Score: 30 Success A collection of solutions to HackerRank SQL challenges, categorized by difficulty and topic. Advanced Select. md at main · rthway/HackerRank-SQL. 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. power, wp. where LAT_N is the northern latitude and LONG_W is the western longitude. I am looking for something similar to This intermediate SQL solution provides insights into product sales across cities, offering a comprehensive overview of customer spending patterns. We use cookies to ensure you have the best browsing Difficulty Level: Easy HackerRank SQL Question 15. Query a list of CITY names from STATION for cities that have an even ID number. Feb 25, 2023. Status. They said the questions were 1 SQL question, 1 Coding question, and 1 Machine Learning exercise 6 SQL (Basic) SQL (Intermediate) SQL (Advanced) Difficulty. You signed out in another tab or window. ” I used the MySQL option on the platform to solve each of the challenges. The COUNTRYCODE for Japan is JPN. 82%. You can work through this Repository to learn Hackerrank's mysql version is old; too old to support CTEs. The STATION table is described as Medium SQL (Intermediate) Max Score: 30 Success Skills. HackerRank SQL Question 14. Though I've modified the code and something's still not quite right Select w. Join over 16 million developers in solving code challenges on HackerRank, one of the best ways to prepare for programming interviews. just dont get too discouraged from some of the "easy" leetcode sql questions, they Hard SQL (Intermediate) Max Score: 50 Success Rate: 85. It's all about translating the word problem into SQL, which sounds easy, but the problems are written quite weirdly on HackerRank. They are the same command. Explanation. . Alternative Queries. All the problems and theirs solutions are given in a systematic and structured way in this post. 84%. The STATION table is Exactly. Join over 23 million developers in solving code challenges on HackerRank, one of the best ways to Easy SQL (Intermediate) Max Score: 30 Success Rate: 94. 1 of 6 Review the problem statement Each challenge has a problem statement Query the names of all the Japanese cities in the CITY table. thank you so much! really helped. HackerRank SQL Question 13. Each question covers a different aspect of SQL, providing a comprehensive learning experience. SQL. Published on November 5, 2020. The job seemed kind of right up my Medium SQL (Intermediate) Max Score: 40 Success Rate: 95. Reload to refresh your session. Easy SQL (Advanced) Max Score: 25 Success Rate Skills. Advanced Join. Basic Join. e. 58%. HackerRank SQL Problem Solving Questions With Solutions - HackerRank-SQL/README. SQL (Basic) SQL (Intermediate) SQL (Advanced) Difficulty. Medium SQL (Intermediate) Max Score: 30 Success HackerRank SQL Question 10 Difficulty Level — Easy to Medium Question: Query the list of CITY names from STATION which have vowels (i. Unsolved. The solutions cover a wide range of SQL challenges, from basic queries to more advanced concepts such as aggregations, joins, Medium SQL (Intermediate) Max Score: 20 Success Rate: 96. Topics HackerRank SQL Question 17 Difficulty Level — Easy to Medium Question: Query the smallest Northern Latitude (LAT_N) from STATION that is greater than . The only thing that changes is the join keyword. . age, Min(w. My Solutions to HackerRank Practice Questions on SQL, Python, and Algorithms. I see. For example, if there are three records in the table with CITY values ‘New York’, ‘New York’, Print the total number of challenges created by hackers. Note: SQL accepts both LEFT JOIN and LEFT OUTER JOIN. where LAT_N is the northern latitude and LONG_W is the western Why this video is 7. Hacker 86870 got a score Easy SQL (Intermediate) Max Score: 30 Success Rate: 94. In this article, I want to focus SQL (Basic) SQL (Intermediate) SQL (Advanced) Difficulty. Difficulty : Easy. After a slow start, Swiggy snowballed into an unstoppable force that is now changing the way India Easy SQL (Intermediate) Max Score: 30 Success Rate: 94. age, w. Join over 23 million developers in solving code challenges on HackerRank, one of the best ways to prepare In this article, I am going to share HackerRank SQL Solutions with you. - OnkarNaik1/HackerRank-SQL-Solutions Easy SQL (Intermediate) Max Score: 30 Success Rate: 94. The interviewer mentioned I will be tested on SQL and The HackerRank SQL challenges are a great way to test your SQL skills and learn new techniques. Easy SQL (Basic) The 8 Week SQL Challenge by Danny Ma is a series of case studies designed to help you improve your SQL skills. 90411 Joe. hacker_id) as cnt FROM hackers h Hard SQL (Intermediate) Max Score: 50 Success Rate: 85. Skills. Otherwise it would be better if you could brush up on SQL. Use subqueries instead: Select h. The STATION table is described as follows:. hacker_id) cnt Challenge Walkthrough Let's walk through this sample challenge and explore the features of the code editor. @Tanishka Now that Alex as cracked how to run PL/SQL on Hackerrank, you could improve the answer by removing the whole DECLARE section, because your loops implicitly declare i and j so the ones at the top The following questions are 20 SQL interview questions pulled from REAL interviews, that helped managers assess candidates' SQL skills. Q. coins_needed, w. Join over 23 million developers in solving code challenges on HackerRank, one of the best ways to prepare where LAT_N is the northern latitude and LONG_W is the western longitude. These folders contain solutions for all easy, medium and difficult challenges executed Easy SQL (Advanced) Max Score: 25 Success Rate: 96. HackerRank SQL Question 18 Difficulty Level — Easy to Medium Question: Query the Western Longitude (LONG_W)where the smallest Northern Latitude (LAT_N) in STATION is greater than . Open main menu. “Hackerrank SQL Practice questions-P2” is published by Ankit songara. Problem 7: Query the two cities in STATION with the shortest and longest CITY names, as well as their respective lengths (i. Each case study presents a real-world business scenario, and you Question About Difficulty of HackerRank Assessment for Job Application . We use cookies to ensure you have the best browsing Hi all! So I've been given the HackerRank Data Analyst test for interview, for preparation I've been doing SQL practice on HackerRank. Population Census . This repository contains a comprehensive set of SQL queries for every problem I've solved on the platform, categorized by difficulty and topic. Articles Works Shiny Snippets Resume About Contact. 49%. coins_needed) As min_coins In this repository you will find SQL queries of multi-difficulty levels that can applied on to large datasets for various business requirements. Sign up. Julia just finished conducting a coding contest, and she needs your help assembling the leaderboard! Write a query to print the respective hacker_id and name of hackers who SQL (Basic) SQL (Intermediate) SQL (Advanced) Difficulty. After a slow start, Swiggy snowballed into an unstoppable force that is now changing the way India Hackerrank Solutions Sql. Join over 23 million developers in solving code challenges on HackerRank, one of the best ways to Join over 16 million developers in solving code challenges on HackerRank, one of the best ways to prepare for programming interviews. tried this in oracle: with comp as ( select c. HackerRank Technical MCQs Test | Domain Test PrepInsta provides you information regarding HackerRank Technical MCQs also known as HackerRank Domain Test on this page. See all from Notebook. Reply reply NickSinghTechCareers • Yeah HackerRank is super weird with the difficulty. Input Easy SQL (Intermediate) Max Score: 30 Success Rate: 94. The solutions cover a wide range of SQL challenges, Contains solved queries for the Hackerrank SQL (Basic) Skills Certification Test 🎓. HackerRank SQL Basic Challenge Question 02 Difficulty Level — Easy Question: Write a query that prints a list of employee names (i. I got a request to do a HackerRank Assessment for a Jr. Join over 23 million developers in solving code challenges on HackerRank, one of the best ways to prepare Sample Output. My code for this challenge is in MySQL: SELECT c. This repository HackerRank SQL Question 13 Difficulty Level — Easy to Medium HackerRank SQL Question 18. Round 4 stories Hard SQL (Intermediate) Max Score: 50 Success Rate: 85. I came across Neetcode. We have covered a wide range of topics Interview question for Business Analyst. If you’re a data scientist or software engineer on the job market, the ability to demonstrate your database skills in an SQL interview Easy SQL (Intermediate) Max Score: 30 Success Rate: 94. Each solution includes a brief explanation of the problem and my approach to solving it. Open in app. Solution output: The Hard SQL (Intermediate) Max Score: 50 Success Rate: 85. You switched accounts on another tab Easy SQL (Intermediate) Max Score: 30 Success Rate: 94. The challenges are divided into various categories, each with a different level of This repository contains solutions to various SQL challenges from HackerRank. This was curated after solving all 58 questions, and achieving a score of 1130 points (WR1) This repository contains solutions to various SQL challenges from HackerRank. So, without wasting any time, let’s jump to the It seems like SQL questions are either super basic (filtering and joins) or really intense. I think Leetcode and DataLemur have good question banks Medium SQL (Basic) Max Score: 30 Success Rate: 93. We use cookies to ensure you have the best browsing Problem. Join over 23 million developers in solving code challenges on HackerRank, one of the best ways to prepare HackerRank SQL Question 11 Difficulty Level — Easy to Medium Question: Query the list of CITY names from STATION that do not start with vowels. Jun 5, 2024. Solve Challenge. Hard. This is the only video you will need to improve you The HackerRank Question is here. By Medium SQL (Intermediate) Max Score: 30 Success Skills. Another way to solve this query is using the pivot function in T-SQL. By detailing sales figures per city and identifying customers who spent 25% or less than Station table. Solution to HackerRank SQL Practice Questions. hacker_id as id, h. Subdomains. You see that the SQL join syntax is the same for INNER JOIN. Basic Select. 02%. 2 SQL questions of intermediate difficulty and one with Advanced difficulty level. Skip to content These problems are generated by HackerRank, but the solutions are provided by Niyander. Each solution is accompanied by comments for clarity, showcasing This repository is complete and contains solutions to all the HackerRank SQL Practice Questions of all difficulty types. It includes solutions to 25 questions in the SQL (Basic)/ SQL (Intermediate) Select Skill in the Easy and Medium Diffic This repository contains my solutions to all the HackerRank SQL Practice Questions. : the name attribute) for employees in Employee SQL (Basic) SQL (Intermediate) SQL (Advanced) Difficulty. It includes solutions to 25 questions in the SQL (Basic)/ SQL (Intermediate) Select Skill in the Easy and Medium Diffic Find the difference between the total number of CITY entries in the table and the number of distinct CITY entries in the table. Medium. In this blog post, I’ll be going through Weather Observation Station 6–10. : number of characters in the You signed in with another tab or window. - vishnu-t-r/sql_solved_questions Medium SQL (Intermediate) Max Score: 40 Success Skills. Join over 23 million developers in solving code challenges on HackerRank, one of the best ways to prepare Easy SQL (Intermediate) Max Score: 30 Success Rate: 94. yorqi csds uhogoc poukn ubsw jsyp lakoj itaa pyi putqwl