Hackerrank solution for sql Contains solved queries for the Hackerrank SQL (Basic) Skills Certification Test ๐. 15%. Star 0. Feel free to use, share, and improve upon it! ๐ Level up your SQL skills with these HackerRank challenges and become a coding master! ๐ Query CITY names that start AND end with vowels. 5 of 6; Submit to see results When you're ready, submit your solution! Remember, you can go back and refine your code anytime. Problem 1. - Hackerrank/SQL(Basic)/Profitable Stocks. Problem; Explanation; Solution โ Placements in SQL. Consider P1(a, c) and P2(b, d) to be two points on a 2D plane where (a, b) are the respective minimum and maximum values of Northern Latitude (LAT_N) and (c, d) are the respective minimum and maximum values of Western Longitude (LONG_W) in STATION. Each file corresponds to a specific This repository contains my SQL solutions to HackerRank challenges, organized by difficulty level: Easy, Medium, and Hard. First part is about number of hackers who were actively participating in the contest and submitting solutions every day; Learn how to write a SQL query to print all prime numbers less than or equal to a specified number. 65%. Link to the full problem on Hackerrank. I was not able to solve it at all. Write HackerRank-Solutions / SQL / 5_Advanced Join / 4_Interviews ๐ License. Reload to refresh your session. Query the Euclidean Distance between points P1 and P2 and format your answer to display 4 HackerRank MySQL challenge solution in the MySQL Advance Track - GitHub - hammad-ali-shah/SQL: HackerRank MySQL challenge solution in the MySQL Advance Track. Updated Jan 26, 2021; sadikkuzu / HackerRank. CodeRankGPT helps you solve HackerRank coding problems during your coding interview. Inside you will find the solutions to all HackerRank SQL Questions. This repository contains a comprehensive set of SQL queries for every problem I've solved on the platform, categorized by difficulty and topic. The repository dedicated to solutions for Hacker-rank Database problems, solved with MySQL - hackerrank-sql-solutions/The PADS. Order your output by ascending Problem. hackerrank solutions github | hackerrank all solutions | hackerrank solutions for java | hackerrank video tutorial | hackerrank cracking the coding interview solutions | hackerrank data structures The solutions of all SQL hackerrank challenges using MySQL environment. Each solution is accompanied by comments for clarity, showcasing various approaches and optimizations. All HackerRank solutions for Python, Java, SQL, C, C++, Algorithms, Data Structures. Please make use of my blog posts for learning purpose only and feel free to ask your questions in the comment box below in case of any doubt. 1 day ago + 0 comments. Sep 15, 2024. Skills. - qanhnn12/SQL-Hackerrank-Challenge-Solutions. You are given three tables: Students, Friends and Packages. We define an employeeโs total earnings to be their monthly salary x months worked, and the maximum total earnings to be the maximum total earnings for any employee in the Employee table. These are the most common problems we encounter while integrating the Traffic Rider SQL to look into the matter. These problems are generated by HackerRank, but the solutions are provided by Niyander. Problem; Solution โ Weather Observation Station 4 in SQL; Problem. The solutions cover a wide range of SQL challenges, from basic queries to more advanced concepts such as aggregations, joins, and subqueries. Problem. Join over 23 million developers in solving code challenges on HackerRank, one of the best ways to prepare for programming interviews. Can anyone help? There were a number of contests where participants each made number of attempts. Name, S. The goal of this repository is to document and share SQL queries that I have This repository contains solutions to HackerRank SQL challenges ranging from beginner to advanced levels. Write a query to print the contest_id, hacker_id, name, and the sums of total_submissions, total_accepted_submissions, 170+ solutions to Hackerrank. Published on November 5, 2020. mysql challenge sql hackerrank mysql-database hackerrank-solutions hackerrank-sql hackerrank-sql-solutions. This tutorial is only Hello coders, today we are going to solve Japan Population HackerRank Solution in SQL. We use cookies to Hello coders, today we are going to solve Print Prime Numbers HackerRank Solution in SQL. Medium SQL (Intermediate) Max Score: 30 Success Rate: 96. Query a list of CITY names beginning with vowels (a, e, i, o, u). Tweet it Share it. Towards Data Engineering. Subqueries and Nested Queries. These solutions can be used as a reference for other learners or as a way to practice and improve SQL skills. Table of Contents. The attempt with the highest score is only one considered. Articles Works Shiny Snippets Resume About Contact. Amberโs conglomerate corporation just acquired some new companies. Sponsor Please follow us https://www. My SQL select distinct CITY from STATION Where SUBSTR(CITY, LENGTH(CITY), 1) NOT IN ('a','e','i','o','u'); You signed in with another tab or window. by. Nerves can peak during the programming test, and even experienced developers might blank Solutions for all SQL challenges on HackerRank executed on MySQL and MS SQL Server. ; Scalene: Itโs a triangle with 3 sides of differing lengths. Problem; Input Format; Solution โ Population Census in SQL. Write a query identifying the type of each record in the TRIANGLES table using its three side lengths. 2345, rounded to 4 decimal places. Julia conducted a 15 days of learning SQL contest. My solution: WITH MaxScores AS ( SELECT Hacker_ID, Challenge_ID, MAX(Score) AS MaxScore FROM Submissions GROUP BY Hacker_ID, Challenge_ID ), SummedScores AS ( SELECT Hacker_ID, SUM(MaxScore) AS TotalScore FROM MaxScores GROUP BY Hacker_ID ) SELECT S. I started studying SQL from a very famous site - HackerRank. - adminazhar/hackerrank-SQL-basic-skills-certification-test-solution Skip to content Navigation Menu HackerRank SQL Problems and Solutions โ2. Top Earners Hackerrank Solution - SQL *****For code click Here : https://idiotprogrammern. Subdomains. Hello coders, today we are going to solve Japan Population HackerRank Solution in SQL. As part of a cryptocurrency trade monitoring platform create a query to return a list of suspicious transactions. We use cookies to Add a description, image, and links to the hackerrank-sql-solutions-oracle topic page so that developers can more easily learn about it. A median is defined as a number separating the higher half of a data set from the lower half. We use cookies to 19. The CITY table is described as follows: Field SQL. Hello coders, today we are going to solve Contest Leaderboard HackerRank Solution in SQL. mysql. SQL. Aggregation. This tutorial is only for Educational and Learning Purpose. Population Census . Hard SQL (Intermediate) Max Score: 50 Success Rate: 85. Problem; Input Format; Solution โ Population Density Difference in SQL. Write better code with AI Security. Easy SQL (Advanced) Max Score: 25 Success Rate: 96. You are given a table, BST, containing two columns: N and P, where N represents the value of a node in Binary Tree, and P is the parent of N. There are many ways to find out the solution, I thought it is the better to understand for all witherellsonrob1. Watchers. Crack your coding interview and get hired. 7 hours ago + 0 comments. 11 | Parent Permalink. Curate this topic Add this topic to your repo To associate your repository Problem. 82%. We use cookies to Solutions to HackerRank practice, tutorials and interview preparation problems with Python, SQL, C# and JavaScript - nathan-abela/HackerRank-Solutions Hello coders, today we are going to solve Weather Observation Station 4 HackerRank Solution in SQL. blogspot. My solution in mySQL: SELECT hackerrank solutions github | hackerrank all solutions | hackerrank solutions for java | hackerrank video tutorial | hackerrank cracking the coding interview solutions | hackerrank data structures All HackerRank solutions for Python, Java, SQL, C, Hard SQL (Intermediate) Max Score: 50 Success Rate: 85. Submissions. Load more conversations. Practice You might like to solve practice problems on HackerRank. Write a query to list the contestants ranked in the top 3 for each My solution SQL SERVER: Declare @Count Tinyint = '20' WHILE @Count >= 1 begin print replicate('* ',@Count) Set @Count = @Count-1 end; 0 | Permalink. that's why it is written in the query. Need Help? View top submissions. So in this problem we need to determine a number of (i, j) pairs where i < j and ar[i Hello coders, today we are going to solve Weather Observation Station 18 HackerRank Solution in SQL. - HackerRank-SQL/Occupations. Join over 23 million developers in solving code challenges on HackerRank, These concepts introduce more complex features and functionalities of SQL. You signed out in another tab or window. Basic Join. Info; Rules; Scoring If you submitted more than one solution for a You are given a table, Projects, containing three columns: Task_ID, Start_Date and End_Date. Each solution is designed to demonstrate various SQL techniques In this post, we will be covering all the solutions to SQL on the HackerRank platform. For example: AnActorName(A), ADoctorName(D), AProfessorName(P), and ASingerName(S). Each of the companies follows this hierarchy: Given the table schemas below, write a query to print the company_code, founder name, total number of lead managers, total number of senior managers, total number of managers, and total number of employees. You are given a table, Projects, containing three columns: Task_ID, Start_Date and End_Date. Given the CITY and COUNTRY tables, โก Solutions to coding challenges on HackerRank (Python, Java, C++, SQL, Problem Solving & Math) <\> This repository contains my proposed solutions for HackerRank problems and will be updated from time to time. Query the number of ocurrences of each 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. community/Thanks for watching us Dev19๐ค I have used MySQL and MS SQL Server for the solutions. Navigation Menu Toggle navigation. Lists. The COUNTRYCODE for Japan is JPN. Leaderboard. The CITY table is described as follows: Field. The solutions are written in SQL and are well-commented to provide clarity. I have also earned a 5-star badge on HackerRank for SQL, SQL. If there is more than one smallest or largest city, choose the one that comes first when ordered alphabetically. Updated Jan 26, 2021; pankajkumarravi / SQL-Hackerrank. Advanced Select. Output one of the following statements for each record in the table: Equilateral: Itโs a triangle with 3 sides of equal length. You switched accounts on another tab or window. This repository contains solutions to various SQL challenges and problems solved on HackerRank. Sign in Product GitHub Copilot. Julia asked her students to create Welcome to my repository of SQL solutions for all the challenges on HackerRank. instagram. sql at master · MihajloMilojevic In this video, we will be solving SQL problems on Hackerrank. Query the sum of the populations for all Japanese cities in CITY. Weather Observation Station 20. 15 Days of Learning SQL. Column Verify your SQL Skills. HackerRank SQL Solutions Tutorial - Query all columns Medium SQL (Intermediate) Max Score: 30 Success Rate: 97. If the End_Date of the Contribute to bhaglepravesh/Hackerrank-SQL-Advanced-Skills-Certification-Test-Solution development by creating an account on GitHub. Whether we are beginners or experienced professionals, practicing SQL exercises is important for improving your skills. Draw The Triangle 1. Hard SQL (Advanced) Max Score: 50 Success Rate: 78. My SQL. The start date of the contest was March 01, 2016 and the end date was March 15, 2016. MIT license Activity. Samantha is interested in finding the total number of different projects completed. - mahedei/Hackerrank-SQL-Intemediate-Skills-Certification-Test-Solutions Hello coders, today we are going to solve Employee Names HackerRank Solution in SQL. Write HackerRank-Solutions / SQL / 2_Advanced Select / 05_New Companies / New Companies. Create a HackerRank account Be ๐ Solutions of more than 380 problems of Hackerrank accross several domains. Starts in. Problem; Input Format; Solution โ Employee Names in SQL. Problem; Input Format; Explanation; Solution โ Contest Leaderboard in SQL. Stars. Hello coders, today we are going to solve Challenges HackerRank Solution in SQL. This repository contains solutions to HackerRank SQL challenges ranging from This repository contains my solutions to various SQL challenges on HackerRank, organized by categories and difficulty levels. Hackerrank โ Divisible Sum Pairs. The STATION table is described as follows:. This video will help you to improve your coding skills in SQL_____ The solutions of all SQL hackerrank challenges using MySQL . e. Skip to content. Starting today, Iโm starting to solve HackerRank SQL exercises, and Iโm excited to share how I do it with you! SQL interview questions have been a critical component of technical hiring for decades. 02%. We use cookies to All SQL solutions for HackerRank's easy, medium, and hard challenges, executed on MS SQL and MySQL environments, compiled with helpful Resources & references related to the challenges. Query the Western Longitude for the largest Northern Latitude under 137. Updated Jul 25, 2023; Improve this page Hello coders, today we are going to solve Population Density Difference HackerRank Solution in SQL. The case (uppercase Contains solved queries for the Hackerrank SQL (Basic) Skills Certification Test ๐. If the End_Date of the tasks are consecutive, then they are part of the same project. where LAT_N is the northern latitude and LONG_W is the western A solution. devvrat_dave1851. HackerRank SQL Solutions Tutorial - SQL Query for printing prime numbers Hard SQL (Intermediate) Max Score: 50 Success Rate: 85. โ I used the MySQL option on the platform to solve each of the challenges. Write a query to output the start and end dates of projects listed by the number of days it took to complete the project in ascending order. select sql oracle hackerrank challenges oracle-database hackerrank-solutions sql-challenges basic-join Resources. We use cookies to Query the Western Longitude for the largest Northern Latitude under 137. - Ishika63/HackerRank-SQL-Intermediate-Solution. Create a HackerRank account Solution โ Revising the Select Query I MYSQL SELECT * FROM CITY WHERE COUNTRYCODE = 'USA' AND POPULATION > 100000; Disclaimer: The above Problem (Revising the Select Query I) is generated by Hacker Rank but the Solution is provided by CodingBroz. Samantha interviews many candidates from different colleges using coding challenges and contests. Write a query to print the id, age, coins_needed, and power of the wands that Ronโs interested in, sorted in order of Hello coders, today we are going to solve Placements HackerRank Solution in SQL. Write better code with AI This repository contains MySQL solutions of the HackerRank SQL Intermediate Certificate problems which I encountered during the test. 50%. Hard. Solution โ Select All in SQL SELECT * FROM CITY; Disclaimer: The above Problem is generated by Hacker Rank but the Solution is provided by CodingBroz. MySQL Server; Problem. com practice problems using Python 3, ะก++ and Oracle SQL - marinskiy/HackerrankPractice If the End_Date of the tasks are consecutive, then they are part of the same project. MySQL; Problem. com/2021/09/top-ear A solution. We use cookies to where LAT_N is the northern latitude and LONG_W is the western longitude. Automated the process of adding solutions using Hackerrank Solution Crawler. Write a query to find the maximum total earnings for all employees as well as the total number of employees who have maximum total earnings. Table of Contents Toggle Hello coders, today we are going to solve Draw The Triangle 2 HackerRank Solution in SQL. ; Isosceles: Itโs a triangle with 2 sides of equal length. Query the number of ocurrences of each SQL (Structured Query Language) is a powerful tool used for managing and manipulating relational databases. Here I will try to provide multiple approaches & solutions to the same problem. Works in real-time and it's absolutely undetectable ๐ You're applying for a new job and have a coding problem coming up. Easy. Write a query that prints a list of employee names (i. total number of unique hackers who made at least 1 submission each day (starting on the first day of the contest), and; find the hacker_id and name of the hacker who made maximum number of submissions Join over 23 million developers in solving code challenges on HackerRank, These concepts introduce more complex features and functionalities of SQL. You can find me on hackerrank here. MySQL: HackerRank. CITY Solution โ Average Population in SQL MySQL select floor(avg(population)) from city; Disclaimer: The above Problem (Average Population) is generated by Hacker Rank but the Solution is Provided by CodingBroz. Solution using Joins is faster although it uses much space but for time being space is not a constraint but time is , HackerRank SQL Problems and Solutions โ2. plpratyusha. SELECT DISTINCT(CITY) FROM STATION WHERE MOD (ID,2) = 0; 2 | Permalink. Print Prime Numbers. If youโre a data scientist or software engineer on the job market, the ability to demonstrate your database skills in an SQL interview Solutions to HackerRank practice, tutorials and interview preparation problems with Python, SQL, C# and JavaScript - nathan-abela/HackerRank-Solutions The solutions of all SQL hackerrank challenges using MySQL . The solutions of all the Hackerrank SQL challenges for all easy, medium and hard challenges executed on Oracle environment. Suspicious transactions are defined as: a series of two or more transactions occur at intervals of an hour or less they are from the same sender the sum of transactions in This is a new question Hackerrank has added for the advance level SQL certification. Harry Potter and his friends are at Ollivanderโs with Ron, finally replacing Charlieโs old broken wand. Kamireddy Mahendra. SQL (Basic) SQL (Intermediate) SQL (Advanced) Difficulty. Readme License. It is organized into six folders, each containing my solutions for easy, medium and difficult challenges executed in realNameHiddenRevising the Select Query I Hackerrank SQL Solution*****If You want Query Click Here: https://realnamehidde Problem. We use cookies to Medium SQL (Intermediate) Max Score: 30 Success Rate: 97. This project is open-source and available under the MIT License. 1 Comment / HackerRank, HackerRank SQL / By CodeBros Hello coders, today we are going to solve The Blunder HackerRank Solution in SQL . They are essential for building more sophisticated and robust queries, managing data relationships, and optimizing query performance. Explore HackerRank SQL Solutions, a robust resource offering a diverse array of practical challenges and expert solutions to bolster your SQL proficiency and database querying skills. . Problem; Solution โ Draw The Triangle 2 in SQL. Find the difference between the total HackerRank SQL Problems and Solutions โ 1. There are almost always multiple solutions to the same problem. com/dev. Contribute to BlakeBrown/HackerRank-Solutions development by creating an account on GitHub. This tutorial is only for Educational and Learning Problem. Solved. python sql hackerrank hackerrank-python hackerrank-solutions hackerrank-sql. Solution โ Weather Observation Station 9 in SQL MySQL select distinct city from station where not (city like 'A%' or city like 'E%' or city like 'I%' or city like 'O%' This repo contains Hackerrank Easy solution for Database Management System| SQL Topics mysql station select update hackerrank insert hackerrank-solutions where orderby clause hackerrank-sql-solutions slq city-table city-entries lat_n is used here because in the end part the question says '' where LAT_N is the northern latitude and LONG_W is the western longitude. It will help you learn and understand SQL in a better way. 21 stories This is a new question Hackerrank has added for the advance level SQL certification. The STATION table is described as Annotated solutions to HackerRank's SQL domain questions. Input Format. Then print these values as 2 space Query a triangle's type based on its side lengths. Feel free to use, share, and improve upon it! ๐ Level up your SQL skills with these HackerRank challenges and become a coding master! ๐ Solution โ Select All in SQL SELECT * FROM CITY; Disclaimer: The above Problem is generated by Hacker Rank but the Solution is provided by CodingBroz. The output will be formatted on a single line with ampersands (&) as separators. New Companies. Problem; Solution โ Print Prime Numbers in SQL | Hacker Rank Solution. Return to all comments โ. sql at master · Shounok/hackerrank-sql-solutions In this video, we will be solving SQL problems on Hackerrank. Join over 23 million developers in solving code challenges on HackerRank, one of the best ways to prepare for programming interviews. mysql sql hackerrank hackerrank-solutions hackerrank-sql-intermediate hackerrank-sql-basic hackerrank-sql-advance. - adminazhar/-hackerrank-SQL-intermediate-skills-certification-test-solution Contains solved queries for the Hackerrank SQL (Basic) Skills Certification Test ๐. Find and fix vulnerabilities Actions Code your solution in our custom editor or code in your own environment and upload your solution as a file. Hermione decides the best way to choose is by determining the minimum number of gold galleons needed to buy each non-evil wand of high power and age. Welcome to the HackerRank SQL Challenges Solutions repository! This repository contains my solutions to all the HackerRank SQL Practice Questions. Discussions. Problem; Solution โ Binary Tree Nodes in SQL. We use cookies to In this post, Iโll share my solutions to some SQL problems on HackerRank, categorized as โEasy. Weather Observation Station 3. Each solution includes a brief explanation of the problem and my approach to solving it. View on GitHub Hackerrank. - MahedeiHasan/Hackerrank-SQL-Intemediate-Skills-Certification-Test-Solutions Generate the contest leaderboard. You did such a great job This repository contains my SQL solutions to HackerRank challenges, organized by difficulty: Easy, Medium, and Hard. Query the two cities in STATION with the shortest and longest CITY names, as well as their respective lengths (i. 6 of 6 I started studying SQL from a very famous site - HackerRank. We use cookies to This repository contains most of my solutions and projects I have completed on HackerRank. zee. Write a query to list the contestants ranked in the top 3 for each SQL. HackerRank is a platform for competitive coding. Each solution is crafted to address a specific SQL problem from the HackerRank SQL challenge set, covering various aspects of SQL including querying, joins, aggregations, and more. DipS91. Accelerate your Job Search. akshithalachu68. You are viewing a single comment's thread. Create a HackerRank account Be part of a 23 million-strong community of developers. TotalScore Join over 11 million developers in solving code challenges on HackerRank, one of the best ways to prepare for You can tell your friends about SQL. Easy SQL (Intermediate) Max Score: 30 Success Rate: 94. Status. Query a list of CITY names from STATION for cities that have an even ID number. Problem; Input Format; Solution โ Weather Observation Station 18 in SQL. Consider P1(a, HackerRank SQL Problems and Solutions โ 1. Hello coders, today we are going to solve Binary Tree Nodes HackerRank Solution in SQL. It is organized into six folders, each containing my solutions for easy, medium and difficult challenges executed in a MySQL environment. Open main menu. Hacker_ID, H. Sort by. Problem; Input Format; Solution โ Japan Population in SQL. Revising the Select Query I. : number of characters in the name). Problem; Input Format; Explanation; Solution โ Challenges in SQL. In this article, I am going to share HackerRank SQL Solutions with you. 8 years ago + 18 comments. 15 days of Learning SQL. We use cookies to ensure you have the best browsing experience on our website. 19. Query the list of CITY names ending with vowels (a, e, i, o, u) from STATION. Query the sum of the populations for all Japanese SQL. Find the duplicates and delete them from the table. Solve Challenge. Query the difference between the maximum and minimum populations in CITY. This video will help you to improve your coding skills in SQL_____ Problem. - 12Ruturaj/HackerRank-SQL Easy SQL (Intermediate) Max Score: 30 Success Rate: 94. Contains solved queries for the Hackerrank SQL (Intermediate) Skills Certification Test ๐. Editorial. 1 watching. This collection serves as a useful resource for improving SQL skills and problem-solving techniques. 1 week ago + 0 comments. Sep 16, 2024. - kumod007/All-HackerRank-SQL-Challenges-Solutions Recently, I achieved the HackerRank SQL Advanced Certification, and Iโm excited to share my experience with all of you. ChatGPT. ๐ License. HackerRank solutions. '' and there are two columns named lat_n and long_w. 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. Solutions of more than 380 problems of Hackerrank across several domains. Write a query to print total number of unique hackers who made at least 1 submission In this post, Iโll share my solutions to some SQL problems on HackerRank, categorized as โEasy. In this article, Iโll walk you through two questions from the exam along Problem. In. sql at master · raleighlittles/HackerRank-SQL Hello coders, today we are going to solve Population Census HackerRank Solution in SQL. Unsolved. Write a query to print. Here I will try to provide multiple approaches & solutions to the same problem. - adminazhar/hackerrank-SQL-basic-skills-certification-test-solution Welcome to the HackerRank SQL Challenges Solutions repository! This repository contains my solutions to all the HackerRank SQL Practice Questions. Blog; Scoring; Environment; FAQ; About Us; Support; Careers; Terms Of Service; Create a HackerRank account Be part of a 23 million-strong community of developers. Students contains two columns: ID and Name. Write a query to output the start and end dates of projects listed by someone please explain me why this is not correct select N, case when p is null then 'Root' when n not in (select distinct p from bst) then 'Leaf' else 'Inner' end as NodeType from bst order by n; i wrote it with a different logic as it wont find n in p column so it should assign it as leaf but i dont know how its still assigning 1,3 as inner My solutions to SQL problems on HackerRank # SQL Problems Page: https://www. Alternative Queries. It is very important that you all first give it a try & brainstorm yourselves before having a Julia conducted a 15 days of learning SQL contest. : the name attribute) from the Employee table in alphabetical order. These are not the only solutions. P(R) represents a pattern drawn by Julia in R rows. recency | 850 Discussions| Please Login in order to post a comment. Advanced Join. 4 of 6; Test your code You can compile your code and test it for errors and accuracy before submitting. : enclosed in parentheses). Write a query to print all prime numbers less than or equal to 1000. Topics. Generate the following two result sets: Query an alphabetically ordered list of all names in OCCUPATIONS, immediately followed by the first letter of each profession as a parenthetical (i. 74%. Guestbook. Solved queries for the Hackerrank SQL (Intermediate) Skills Certification Test ๐. Create a HackerRank account where LAT_N is the northern latitude and LONG_W is the western longitude. Medium. 8223 words 42 min read 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. Sign in Product HackerRank-Solutions / SQL / 5_Advanced Join / 5_15 Days of Learning SQL / You signed in with another tab or window. It is guaranteed that the difference between the End_Date and the Start_Date is equal to 1 day for each row in the table. Basic Select. 6 stars. SQL HackerRank Solutions. to. Regular practice helps you get better at using SQL and boosts your confidence in handling different database tasks. Samantha is interested in finding the total number of different projects completed. Solution โ Weather Observation Station 3 in SQL SELECT DISTINCT CITY FROM STATION WHERE MOD(ID, 2) = 0; Disclaimer: The above Problem (Weather Observation Station 3) is generated by Hacker Rank but the Solution is Provided by CodingBroz. This was curated after solving all 58 questions, and achieving a score of 1130 points (WR1) Post displaying HackerRank sql problem solving questions and solution. vqtnwj foip zdha qpjql wfiix dbezf fwicw ynb wpqjaa nnup