Hackerrank sql questions by difficulty. Use subqueries instead: Select h.

Hackerrank sql questions by difficulty Status. 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. These solutions can Interview question for Business Analyst. 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. 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. 83%. Solved. See all from Notebook. My Solutions to HackerRank Practice Questions on SQL, Python, and Algorithms. Advanced Join. The COUNTRYCODE for Japan is JPN. SQL interview questions have been a critical component of technical hiring for decades. It is organized into six folders, each containing my solutions for easy, medium and difficult challenges executed in a MySQL environment. 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. Proctored test on Hackerrank lasting 60 minutes. You see that the SQL join syntax is the same for INNER JOIN. 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. md at main · rthway/HackerRank-SQL. Join over 23 million developers in solving code challenges on HackerRank, one of the best ways to prepare 19. Problem 7: Query the two cities in STATION with the shortest and longest CITY names, as well as their respective lengths (i. HackerRank SQL Question 13. hacker_id as hackerid, name, count(c. Alternative Queries. e. You signed out in another tab or window. Unsolved. Solution to HackerRank SQL Practice Questions. HackerRank SQL Basic Challenge Question 02 Difficulty Level — Easy Question: Write a query that prints a list of employee names (i. ” I used the MySQL option on the platform to solve each of the challenges. The solutions cover a wide range of SQL challenges, Contains solved queries for the Hackerrank SQL (Basic) Skills Certification Test 🎓. After a slow start, Swiggy snowballed into an unstoppable force that is now changing the way India Hackerrank Solutions Sql. Another way to solve this query is using the pivot function in T-SQL. Weather Medium SQL (Intermediate) Max Score: 30 Success Skills. 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. Hard SQL (Advanced) Max Score: 50 Success Rate: Easy SQL (Intermediate) Max Score: 30 Success Rate: 94. 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. 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. Share this post. Greetings! Welcome back to the Hackerrank SQL guide. 02%. Articles Works Shiny Snippets Resume About Contact. . You can work through this Repository to learn Hackerrank's mysql version is old; too old to support CTEs. Round 4 stories Hard SQL (Intermediate) Max Score: 50 Success Rate: 85. We use cookies to ensure you have the best browsing Problem. To practice this SQL translation skill can also check SQL (Basic) SQL (Intermediate) SQL (Advanced) Difficulty. 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. 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. Practice SQL questions to enhance our skills in database querying and manipulation. Basic Select. Join over 23 million developers in solving code challenges on HackerRank, one of the best ways to prepare for programming interviews. Population Census . Open in app. Otherwise it would be better if you could brush up on SQL. Each question covers a different aspect of SQL, providing a comprehensive learning experience. The solutions of all the Hackerrank SQL challenges for all easy, medium and hard challenges executed on Oracle environment. 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. I see. The STATION table is Exactly. In this article, I want to focus SQL (Basic) SQL (Intermediate) SQL (Advanced) Difficulty. Hacker 86870 got a score Easy SQL (Intermediate) Max Score: 30 Success Rate: 94. 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. 50%. Published on November 5, 2020. By Medium SQL (Intermediate) Max Score: 30 Success Skills. My code for this challenge is in MySQL: SELECT c. I came across Neetcode. This was curated after solving all 58 questions, and achieving a score of 1130 points (WR1) Subscribe Sign in. By detailing sales figures per city and identifying customers who spent 25% or less than Station table. thank you so much! really helped. age, Min(w. Hard SQL (Intermediate) Max Score: 50 Success Rate: 85. Input Easy SQL (Intermediate) Max Score: 30 Success Rate: 94. “Hackerrank SQL Practice questions-P2” is published by Ankit songara. Note: SQL accepts both LEFT JOIN and LEFT OUTER JOIN. hacker_id, name from ( Select j. Hard. Difficulty : Easy. 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. where LAT_N is the northern latitude and LONG_W is the western Why this video is 7. Your result cannot Comparison of Difficulty Levels and Question Types Between Platforms. just dont get too discouraged from some of the "easy" leetcode sql questions, they Hard SQL (Intermediate) Max Score: 50 Success Rate: 85. Join over 23 million developers in solving code challenges on HackerRank, This repository contains my solutions to all the HackerRank SQL Practice Questions. The only thing that changes is the join keyword. 2 SQL questions of intermediate difficulty and one with Advanced difficulty level. SQL. Hello coders, in this post you will get all the solution of HackerRank SQL Solutions. 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. Feb 26, 2023. The STATION table is described as Medium SQL (Intermediate) Max Score: 30 Success Skills. The CITY table is described as follows: Medium SQL (Intermediate) Max Score: 20 Success Rate: 96. Welcome to my repository of SQL solutions for all the challenges on HackerRank. Hackerrank SQL Practice questions-P7. Round your answer to decimal This repository contains my SQL solutions to HackerRank challenges, organized by difficulty: Easy, Medium, and Hard. 49%. Difficulty as d, SQL (Basic) SQL (Intermediate) SQL (Advanced) Difficulty. These solutions can Medium SQL (Intermediate) Max Score: 20 Success Rate: 96. Though I've modified the code and something's still not quite right Select w. Advanced Select. Easy SQL (Intermediate) Max Score: 30 Success Rate: 94. Hard SQL (Advanced) Max Score: 50 Success Rate: Easy SQL (Advanced) Max Score: 25 Success Rate: 96. 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. 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. 48%. Join over 23 million developers in solving code challenges on HackerRank, SQL (Basic) SQL (Intermediate) SQL (Advanced) Difficulty. io which is a collection of 150 problems from L33tcode and they are neatly categorized by difficulty and data structure type. Difficulty: The difficult_level is the level of difficulty of the challenge, and score is the score of the challenge for the difficulty level. Basic Join. Hackerrank SQL Questions with 2 medium and 2 hard level difficulty. If you’re new then welcome on board. name as name, COUNT(c. 60%. Notebook. They said the questions were 1 SQL question, 1 Coding question, and 1 Machine Learning exercise 6 SQL (Basic) SQL (Intermediate) SQL (Advanced) Difficulty. This is the only video you will need to improve you The HackerRank Question is here. 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. We use cookies to ensure you have the best browsing Difficulty Level: Easy HackerRank SQL Question 15. Here’s the solution: SELECT CITY, STATE FROM STATION. I got a request to do a HackerRank Assessment for a Jr. 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. These problems are generated by HackerRank, but the solutions are provided by Niyander. They are the same command. 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. Jun 5, 2024. tried this in oracle: with comp as ( select c. We have covered a wide range of topics Interview question for Business Analyst. 6: Binary Tree Nodes: Solution: We can write this query using simple case when statements. HackerRank SQL Problem Solving Questions With Solutions - HackerRank-SQL/README. These folders contain solutions for all easy, medium and difficult challenges executed Easy SQL (Advanced) Max Score: 25 Success Rate: 96. SQL (Basic) SQL (Intermediate) SQL (Advanced) Difficulty. 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. Feb 25, 2023. Join over 23 million developers in solving code challenges on HackerRank, one of the best ways to prepare Sample Output. Reply reply NickSinghTechCareers • Yeah HackerRank is super weird with the difficulty. Subdomains. @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. 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. python3 hackerrank-python hackerrank-solutions It provides a collection of SQL problems categorized by difficulty level, making it suitable for interview preparation. Explanation. Guestbook. Each case study presents a real-world business scenario, and you Question About Difficulty of HackerRank Assessment for Job Application . This repository contains a comprehensive set of SQL queries for every problem I've solved on the platform, categorized by difficulty and topic. About. Medium SQL (Intermediate) Max Score: 30 Success A collection of solutions to HackerRank SQL challenges, categorized by difficulty and topic. Q. age, w. 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. The STATION table is described as follows:. It's all about translating the word problem into SQL, which sounds easy, but the problems are written quite weirdly on HackerRank. The repository contains 6 folders. Solve Challenge. 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. 58%. where LAT_N is the northern latitude and LONG_W is the western longitude. In this post, I’ll share my solutions to some SQL problems on HackerRank, categorized as “Easy. 90411 Joe. 8223 words 42 min read Easy SQL (Intermediate) Max Score: 30 Success Rate: 94. HackerRank SQL Question 14. - OnkarNaik1/HackerRank-SQL-Solutions Easy SQL (Intermediate) Max Score: 30 Success Rate: 94. Skip to content These problems are generated by HackerRank, but the solutions are provided by Niyander. , a, e, i, o, and u) as both their first and last characters. If you can do all the Basic problems with little to no difficulty you are good to go. HackerRank Technical MCQs Test | Domain Test PrepInsta provides you information regarding HackerRank Technical MCQs also known as HackerRank Domain Test on this page. power From (Select w. Easy SQL (Advanced) Max Score: 25 Success Rate Skills. id, wp. 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. : number of characters in the You signed in with another tab or window. hacker_id as id, h. 82%. This repository HackerRank SQL Question 13 Difficulty Level — Easy to Medium HackerRank SQL Question 18. Topics HackerRank SQL Question 17 Difficulty Level — Easy to Medium Question: Query the smallest Northern Latitude (LAT_N) from STATION that is greater than . 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. Medium. hacker_id) cnt Challenge Walkthrough Let's walk through this sample challenge and explore the features of the code editor. In this blog post, I’ll be going through Weather Observation Station 6–10. This question is under the SQL Aggregation section and is classified as “Easy” This is a Facebook interview question under Medium difficulty. Join over 16 million developers in solving code challenges on HackerRank, one of the best ways to prepare for programming interviews. : the name attribute) for employees in Employee SQL (Basic) SQL (Intermediate) SQL (Advanced) Difficulty. 84%. power, wp. 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. Difficulty: The difficult_level is the level of difficulty of the Hello, I got an option to participate in a hackerrank challenge with Expedia. Swiggy is a phoenix that rose out of Harsha & Nandan's earlier venture, Bundl Technologies. - vishnu-t-r/sql_solved_questions Medium SQL (Intermediate) Max Score: 40 Success Skills. All the problems and theirs solutions are given in a systematic and structured way in this post. 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. 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. coins_needed, w. Aggregation. 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. Skills. Sign up. 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. I think Leetcode and DataLemur have good question banks Medium SQL (Basic) Max Score: 30 Success Rate: 93. 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. Inside you will find the solutions to all HackerRank SQL Questions. Your result cannot contain duplicates. 5 hours long? Because Im solving ALL of the SQL Problems on Hackerrank in this video. Part of the beauty of SQL is its simple Easy SQL (Intermediate) Max Score: 30 Success Rate: 94. Use subqueries instead: Select h. Easy. This repository contains my solutions to various SQL challenges on HackerRank, organized by categories and difficulty levels. The problem here asks us to query a list of CITY and STATE from the STATION table. However, in the above query I have tried sticking to using standard SQL. Join over 23 million developers in solving code challenges on HackerRank, one of the best ways to prepare for programming interviews. Reload to refresh your session. 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. 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. The job seemed kind of right up my Medium SQL (Intermediate) Max Score: 40 Success Rate: 95. 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. Solution output: The Hard SQL (Intermediate) Max Score: 50 Success Rate: 85. While we have included SQL (Basic) SQL (Intermediate) SQL (Advanced) Difficulty. Print the results in any order, but exclude duplicates from the answer. 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. 76%. 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. hacker_id) as cnt FROM hackers h Hard SQL (Intermediate) Max Score: 50 Success Rate: 85. 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. SE job I applied for. SELECT COUNT(CITY) — COUNT(DISTINCT CITY) FROM STATION ; X. . Each solution includes a brief explanation of the problem and my approach to solving it. This repository contains solutions to various SQL challenges from HackerRank. 74%. 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. Query a list of CITY names from STATION for cities that have an even ID number. afslksc tqytqi byuse xuqth wmqmzj gcpnd iallwxi rkb burvz krlg