Hackerrank sql solutions Learn SQL queries, aggregations, joins, subqueries, and more with examples and explanations. Whether you are a beginner or an experienced coder, this repository aims to provide clear and efficient solutions to help you improve your problem-solving skills. - Cyberoctane29 HackerRank concepts & solutions. Query the number of ocurrences of each occupation in OCCUPATIONS. 55; Julia’s best friend got offered a higher salary than her at 12. 84%. Easy SQL (Advanced) Max Score: 25 Success Rate: 96. Alternative Queries. development by creating an account on GitHub. It is very important that you all first give it a try & brainstorm yourselves before having a Why this video is 7. md. com practice problems in C++, python and SQL - IhorVodko/Hackerrank_solutions Skip to content Navigation Menu Toggle navigation Sign in Product GitHub Copilot Write better code Issues Efficient solutions to HackerRank SQL problems This repository consists of all the SQL Solutions as of 10th April 2020 TOPICS: Basic Select Advanced Select Aggregation Basic Join Advanced Join Alternative Queries Hard SQL (Intermediate) Max Score: 50 Success Rate: 85. A number of algorithms are used to mine cryptocurrencies. Easy SQL (Intermediate) Max Score: 30 Success Rate: 94. Code; Issues 0; Pull requests 0; Actions; Projects 0; Security; Insights; Files main. We use cookies to ensure you have the best browsing experience on our website. You can find me on hackerrank here. - adminazhar/hackerrank-SQL-basic-skills-certification-test-solution Problem. VIPULPAHUJA / HackerRank-Sql-Solutions Public. name FROM student_information a INNER JOIN examination_marks b ON a. We use cookies to ensure you HackerRank SQL Solutions. " You signed in with another tab or window. View on GitHub Hackerrank. Find all the solutions of HackerRank SQL problems in a systematic and structured way. 24 hours ago + 0 comments. Query the Name of any student in STUDENTS who scored higher than 75 Marks. We use cookies to ensure you Amber's conglomerate corporation just acquired some new companies. The CITY is described as follows: Field Type; ID: All Solutions in Hackerrank SQL Section. We have also GitHub is where people build software. Now, Samantha’s best friend got offered a higher salary than her at 11. Whether you’re prepping for an interview or honing your SQL skills, you’ll find valuable solutions and insights here. Contribute to CuriosityLeonardo/All-Hackerrank-SQL-Solutions development by creating an account on GitHub. Annotated solutions to HackerRank's SQL domain questions. In this article, we have discussed the HackerRank Advanced SQL Certification Solutions. Packages. Shortest City: Query the shortest city name(s) from the STATION table. Code Issues The HackerRank SQL Basic Certification gives you a credible way to prove your skills to potential employers, helping you stand out in a competitive job market. ; sql-psql-udy / hackerRank_sql_solutions / 07_advance_certification / 01_crypto_market_algorithm. Solution File: shortest_city. You signed out in another tab or window. MIT license Activity. Each solution is crafted to address a specific SQL problem from the HackerRank SQL challenge set, covering various The solutions of all the Hackerrank SQL challenges for all easy, medium and hard challenges executed on Oracle environment. Easy. This repository contains a comprehensive set of SQL queries for every problem I've solved on the platform, categorized by difficulty and topic. Unsolved. The repository contains 4 folders. Each solution is crafted to address a specific SQL problem from the HackerRank SQL challenge set, covering various aspects of SQL including In this article, I am going to share HackerRank SQL Solutions with you. 76%. Contribute to iancarson/HackerRank_Sql_Solutions. This repository contains my solutions to various SQL challenges on HackerRank, organized by categories and difficulty levels. Find the complete solution with possible explanation to all SQL Practice problems on HackerRank. MySQL; Problem. 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. We use cookies to ensure you have the This repository contains my solutions to all SQL challenges on HackerRank. Basic Join. Reload to refresh your session. "HackerRank SQL Solutions: Enhance your SQL skills through a comprehensive collection of hands-on challenges and expertly crafted solutions, designed to sharpen your database querying abilities. 6 stars. Watchers. Average Population of Each Continent | Easy | HackerRank Given the CITY and COUNTRY tables, query the names of all the continents (COUNTRY. Manhattan Distance Calculation SQL Query. roll_number,a. The STATION table is described as Contribute to tunghim/HackerRank_SQL_Solutions development by creating an account on GitHub. Discussions. This repository contains all 58 solutions to the HackerRank SQL Practice Questions. Topics. SQL solutions are coded 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. Order The solutions of all SQL hackerrank challenges using MySQL environment. This repository contains My Solutions of SQL challenges on HackerRank and you can see multiple solutions for the same challenge. This repository contains my SQL solutions to HackerRank challenges, organized by difficulty: Easy, Medium, and Hard. There are almost always multiple solutions to the same problem. Skip to content. 50%. 106 lines (84 loc) · 3. SQL Query for printing prime numbers. 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 achieved full scores for more than one challenge. Leaderboard. This collection provides solutions to the HackerRank SQL Certification Test problems. Compare and explore different approaches, code snippets, and tips from other developers. Query the average population for all cities in CITY, rounded down to the nearest integer. 99%. Join over 23 million developers in solving code challenges on HackerRank, one of the best ways to prepare for programming interviews. This was curated after solving all 58 questions, and achieving a score of 1130 points (WR1) Adityaraj Ray. Source. Blame. Draw The Triangle 1. 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. 48%. " About My solutions of all the SQL challenges for all easy, medium and hard challenges on HackerRank. Automated the process of adding solutions using Hackerrank Solution Crawler. If you are using a different SQL Language (for example MySQL) you might have to adapt the solution a little. Each solution includes a brief explanation of the problem and my approach to solving it. These are not the only solutions. Status. This repository contains all the solutions to the SQL questions listed in the Hackerrank platform , can be used by coders for reference purpose. 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. Blog; Join over 23 million developers in solving code challenges on HackerRank, one of the best ways to prepare for programming interviews. Topics Solutions to Hackerrank SQL Problems. Click here for more information about HackerRank SQL Basic Hello coders, today we are going to solve Weather Observation Station 13 HackerRank Solution in SQL. HackerRank is a platform for competitive coding. cracking-the-coding-interview hackerrank hackerrank-python hackerrank-solutions hackerrank-java "Learn to pivot the Occupation column in OCCUPATIONS table on HackerRank SQL, sorting Names alphabetically under Doctor, Professor, Singer, and Actor headers. For example: AnActorName(A), ADoctorName(D), AProfessorName(P), and ASingerName(S). SQL (Basic) SQL (Intermediate) SQL (Advanced) Difficulty. Unions-This competency includes using unions to display multiple sets of information All HackerRank solutions for Python, Java, SQL, C, C++, Algorithms, Data Structures. Contribute to christinasam/hackerrank-challenge-solutions development by creating an account on GitHub. Order your output by the last three characters of each name. This repository contains my solutions to all SQL challenges on HackerRank. We use cookies to ensure 19. Problem 1: Solution: Problem 2: Solution: Problem 3: Solution: HackerRank MySQL challenge solution in the MySQL Advance Track - GitHub - hammad-ali-shah/SQL: HackerRank MySQL challenge solution in the MySQL Advance Track Learn about basic MySQL and My solutions to various HackerRank SQL problems using MySQL. " Problem Pivot the Occupation column in OCCUPATIONS so that each Name is sorted alphabetically and displayed underneath its corresponding Occupation. Problem; Input Format; Solution – Weather Observation Station 13 in SQL. We use cookies to ensure you have the You are given three tables: Students, Friends and Packages. Table of Contents. Continent) and their respective average city populations Find the solutions of all SQL hackerrank challenges for easy, medium and hard levels using MySQL environment. 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. These solutions can Problem. These folders contain solutions for easy, medium, and difficult challenges executed on an MS SQL environment. SQL Problem Statement: Ketty gives Eve a task to generate a report containing three columns: Name, Grade and Mark. Easy SQL (Advanced) Max Score: 25 Success Rate: 97. Breadcrumbs. Browse the repository for helpful resources, references and tutorials related to the challenges. The pattern, denoted as P(R), consists of R rows where each row contains a decreasing number of stars, starting from R stars in the first row HackerRank SQL Problem Solving Questions With Solutions - rthway/HackerRank-SQL Skip to content Navigation Menu Toggle navigation Sign in Product GitHub Copilot Write better code with AI Security Actions Instant dev This repository contains all the solutions to the SQL questions listed in the Hackerrank platform , can be used by coders for reference purpose. Enterprises Small and medium teams Startups By use case. Sort by. You switched accounts on another tab or window. Amber’s conglomerate corporation just acquired some new companies. Basic Select. It is organized into six folders, each containing my solutions for easy, medium and difficult challenges executed in a MySQL environment. " Codersdaily is the best IT You signed in with another tab or window. This repository is complete and contains solutions to all the HackerRank SQL Practice Questions of all difficulty types. The following challenges use simple aggregation functions such as MIN, MAX "HackerRank SQL Solutions: Enhance your SQL skills through a comprehensive collection of hands-on challenges and expertly crafted solutions, designed to sharpen your database querying abilities. Draw The Triangle 2. - mahedei/Hackerrank-SQL-Intemediate-Skills-Certification-Test-Solutions Full HackerRank SQL Basic Certification Solution Video Student Analysis SQL solution in SQL SELECT a. This is the only video you will need to improve you This repository contains my solutions to various SQL challenges on HackerRank, organized by categories and difficulty levels. Harry Potter and his friends are at Ollivander’s with Ron, finally replacing Charlie’s old broken wand. " Contains solutions for all Hackerrank Sql problems - vmlrj02/Hackerrank-Sql-solutions Skip to content Navigation Menu Toggle navigation Sign in Product GitHub Copilot Write better code with AI Security Find and Issues The solutions of all the SQL challenges for all easy, medium and hard challenges on HackerRank executed on MySQL environment compiled. - raleighlittles/HackerRank-SQL Why this video is 7. By detailing sales figures per city and identifying customers who spent 25% or less than HackerRank HackerRank: SQL - All solutions (Basic Select, Advanced Select, Aggregation, Basic Join, Advanced Join, Alternative Queries) Coursera: Machine Learning (Week 2) [Assignment Solution] - Andrew NG. Preview. Hard SQL (Advanced) Max Score: 50 Success Rate: 78. There is a table with daily weather data over the last 6 months of 2020, including the maximum, minimum, and average temperatures. Samantha Julia Scarlet Explanation. Write a query to print the contest_id, hacker_id, name, and the sums of total_submissions, total_accepted_submissions, Welcome to the HackerRank Solutions repository, where you can find comprehensive solutions to various HackerRank problems implemented in SQL. If two or more students both have names ending in the same last three characters (i. Add this topic to your repo To associate your repository with the hackerrank-sql-solutions topic, visit your repo's landing page and select "manage topics. Efficient solutions to HackerRank SQL problems This repository consists of all the SQL Solutions as of 10th April 2020. The WHERE clauses will use and three basic boolean operators as well as some of the most used functions. Solution: select * from CITY 2) Select by ID Problem: Query all columns Inside you will find the solutions to all HackerRank SQL Questions. Friends contains two columns: ID and Friend_ID (ID of the ONLY best friend). " Hello coders, today we are going to solve Ollivander's Inventory HackerRank Solution in SQL. TOPICS: Basic Select; Advanced Select; Aggregation; Basic Join; Advanced Join; Alternative Queries; SQL solutions are coded using MySQL. Find public repositories on GitHub that contain solutions to SQL challenges on HackerRank using various databases and languages. roll_number = Solutions to HackerRank practice, tutorials and interview preparation problems with Python, SQL, C# and JavaScript - nathan-abela/HackerRank-Solutions 📗 Solutions of more than 380 problems of Hackerrank accross several domains. Contribute to incredibleiti/Hackerrank-SQL-Solutions development by creating an account on GitHub. 15 Days of Learning SQL. mysql practice solutions hackerrank problem-solving hackerrank-solutions hackerrank-sql hackerrank-sql-solutions Updated Oct 10, 2023; nilansh-07 / SQL-Queries-Hackerrank Star 0. Ketty doesn't want the NAMES of those students who received a grade lower than 8. 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. The Blunder. jorh902. Each solution is accompanied by comments for clarity, showcasing various approaches and optimizations. . The solutions of all SQL hackerrank challenges using MySQL environment - Thomas-George-T/HackerRank-SQL-Challenges-Solutions Hello coders, today we are going to solve Average Population HackerRank Solution in SQL. More than 100 million people use GitHub to discover, fork, and contribute to over 420 million projects. Contribute to BlakeBrown/HackerRank-Solutions development by creating an account on GitHub. Raw. Student and Friend Salary Report: Insights and Analysis. SQL Query for printing HackerRank Advanced SQL Certification Solutions: Learn how to solve HackerRank's Advanced SQL problems with detailed explanations and step-by-step solutions. Accelerate your Job Search. Welcome to the HackerRank SQL Challenges Solutions repository! This repository contains my solutions to all the HackerRank SQL Practice Questions. Hackerrank SQL all track solutions SQL (Intermediate) SQL (Advanced) Difficulty. Hard. Hello coders, today we are going to solve Draw The Triangle 2 HackerRank Solution in SQL. Notifications You must be signed in to change notification settings; Fork 0; Star 0. Write a query to print Easy SQL (Advanced) Max Score: 25 Success Rate: 96. Problem; Solution – Japanese Cities’ Names in SQL; Problem. recency | 1936 Discussions| Please Login in order to post a comment. This is the only video you will need to improve you 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. mysql challenge sql solutions tutorials hackerrank problem-solving hackerrank-solutions hackerrank-challenges hackerrank-sql hackerrank-sql-solutions mysql-environment sql-challenges select-challenges. Share this post. Skills. Aggregation. Effective solutions to hackerrank. com practice problems in C++, python and SQL - IhorVodko/Hackerrank_solutions The following challenges all revolve around simple SELECT statements that make use of SELECT, FROM, WHERE, and ORDER BY. Order your output by ascending company_code. Query the sum of -- MS SQL Server SELECT DISTINCT CITY FROM STATION WHERE PATINDEX ( ' [ aeiou ] % ' , REVERSE ( CITY )) = 1 ; -- it equals to 1 to ensure that the vowel is at the first position as the start of the city name, but then we reverse to get the last position as the start of the city name. Company Details with Employee Counts SQL Query. Topics select sql oracle hackerrank challenges oracle-database hackerrank-solutions basic-join 1 0 All HackerRank solutions for Python, Java, SQL, C, C++, Algorithms, Data Structures. Solve Challenge. HackerRank Solutions in SQL Welcome to the HackerRank Solutions repository, where you can find comprehensive solutions to various HackerRank problems implemented in SQL. com practice problems in C++, python and SQL - IhorVodko/Hackerrank_solutions Problem. Write a query to print the shortest and longest length city name along with the length of the city names. HackerRank SQL Solutions. CRYPTO MARKET ALGORITHM. Write a query identifying the type of each record in the TRIANGLES table using its three side lengths. Medium. Input Format. : enclosed in parentheses). Students contains two columns: ID and Name. Binary Tree Node Type Query on HackerRank SQL. Healthcare Financial services Manufacturing Government View all industries View all This intermediate SQL solution provides insights into product sales across cities, offering a comprehensive overview of customer spending patterns. The solutions cover a wide range of SQL challenges, Test your SQL skills with various challenges on HackerRank, one of the best ways to prepare for programming interviews. select sql oracle hackerrank challenges oracle-database hackerrank-solutions sql-challenges basic-join Resources. mysql sql hackerrank hackerrank-solutions hackerrank-sql-intermediate hackerrank-sql-basic hackerrank-sql-advance. All Solutions in Hackerrank SQL Section All Solutions are made in the MSSQL Syntax. About. Problem; Solution – Draw The Triangle 2 in SQL. These folders contain solutions for all easy, medium and difficult challenges executed Welcome to the HackerRank SQL Solutions repository! 🚀 Dive into a curated collection of SQL queries crafted to tackle a range of challenges. It focuses solely on offering correct answers for SQL queries, joins, and aggregations, helping users pass the certification efficiently. All HackerRank solutions for Python, Java, SQL, C, C++, Algorithms, Data Structures. - MayankOps/HackerRank-SQL-Certification-Test-Solutions HackerRank concepts & solutions. Top. Code. SQL Query for printing pattern. 12; Scarlet’s best friend got where n not in (select n from root) and n not in (select distinct p from bst where p is not null)), You signed in with another tab or window. P(R) represents a pattern drawn by Julia in R rows. Solutions of more than 380 problems of Hackerrank across several domains. Navigation Menu Toggle navigation. - kedarvartak/Hackerrank-Sql-Solutions Effective solutions to hackerrank. I have used MySQL and MS SQL Server for the solutions. Stars. SQL HackerRank Solutions. e. - LinconDash/Hackerrank-SQL-Solutions - LinconDash/Hackerrank-SQL-Solutions Welcome to the HackerRank SQL Solutions repository! 🚀 Dive into a curated collection of SQL queries crafted to tackle a range of challenges. Choose from different levels of difficulty and topics, such as select Inside you will find the solutions to all HackerRank SQL Questions. Packages contains two columns: ID and Salary HackerRank SQL Solutions. Each solution is written in structured query language (SQL), showcasing my proficiency across various levels of difficulty, from basic queries to advanced The code snippet is designed to generate and print a specific text-based pattern of stars. - Sukanya807/HackerRank_SQL_Aggregation. Verify your SQL Skills. : My solutions to SQL problems on HackerRank # SQL Problems Page: https://www. These folders contain solutions for easy, medium, and difficult All HackerRank solutions for Python, Java, SQL, C, C++, Algorithms, Data Structures. Samantha is interested in finding the total number of different projects completed. We use cookies to SQL solutions to HackerRank SQL challenges. Feel free to explore and use the solutions as a reference for This respository contains the solutions to the SQL questions on HackerRank based on Aggregation. We use cookies to ensure Solutions By company size. Query all columns. Solved. HackerRank; Alternative Queries Problems & Solutions. Order your output by ascending Contains solutions for all Hackerrank Sql problems - vmlrj02/Hackerrank-Sql-solutions Contains solved queries for the Hackerrank SQL (Basic) Skills Certification Test 🎓. Crack your coding interview and get hired. Query the names of all the Japanese cities in the CITY Contribute to RodneyShag/HackerRank_solutions development by creating an account on GitHub. - 12Ruturaj/HackerRank-SQL Welcome to my repository of SQL solutions for all the challenges on HackerRank. Hermione Thomas-George-T / HackerRank-SQL-Challenges-Solutions Star 733 Code Issues Pull requests The solutions of all SQL hackerrank challenges using MySQL environment mysql challenge sql solutions tutorials hackerrank HackerRank SQL Solutions This repository contains all 58 solutions to the HackerRank SQL Practice Questions. 5 hours long? Because Im solving ALL of the SQL Problems on Hackerrank in this video. We use cookies to ensure you Effective solutions to hackerrank. Problem. We use cookies to Solved queries for the Hackerrank SQL (Intermediate) Skills Certification Test 🎓. Problem; Solution – Print Prime Numbers in SQL | Hacker Rank Solution. If there are multiple cities with the same length, return the one that comes first alphabetically. Mar 31, 2024. Problem; Input Format; Solution – Average Population in SQL. GitHub is where people build software. The output column headers should be Doctor, Professor, Singer, and Actor, Names of columns in the City Table. HackerRank HackerRank: SQL - All solutions (Basic Select, Advanced Select, Aggregation, Basic Join, Advanced Join, Alternative Queries) Coursera: Machine Learning (Week 2) [Assignment Solution] - Andrew NG. We use cookies to ensure Complex joins-This competency includes using INNER, LEFT, RIGHT, and FULL joins on multiple tables and using joins for many-to-many relationships. Query the Western Longitude for the largest Northern Latitude under 137. Updated Jul 25, 2023; Improve this page HackerRank concepts & solutions. Updated Apr 30, 2024; SQL; Problem. Contains solutions for all Hackerrank Sql problems - Hackerrank-Sql-solutions/Basic Join -- Challenges at main · vmlrj02/Hackerrank-Sql-solutions Hello coders, today we are going to solve Japanese Cities’ Names HackerRank Solution in SQL. 2345, rounded to 4 decimal places. HackerRank concepts & solutions. Submissions. 12 KB. - adminazhar/-hackerrank-SQL-intermediate-skills-certification-test-solution My solutions to SQL challenges on Hacker Rank. Contribute to vrushalird/HackerRank-SQL-Solutions development by creating an account on GitHub. As part of a comparison, create a query to return a list of algorithms Welcome to the HackerRank SQL Challenges Solutions repository! This repository contains my solutions to all the HackerRank SQL Practice Questions. SQL (Intermediate) SQL (Advanced) Difficulty. sql Description: Retrieve the city with the shortest name length. Learn from basic select, advanced select, aggregation, join, alternative queries and more with examples and tips. - LinconDash/Hackerrank-SQL-Solutions The solutions of all the Hackerrank SQL challenges for all easy, medium and hard challenges executed on Oracle environment. Subdomains. If the End_Date of the tasks are consecutive, then they are part of the same project. Create a HackerRank account Be part of a 23 million-strong community of developers. You are given a table, Projects, containing three columns: Task_ID, Start_Date and End_Date. The solutions of all the SQL challenges for all easy, medium and hard challenges on HackerRank executed on MySQL environment. Write a query that gives month, monthly maximum, monthly minimum, monthly average temperatures This repository contains the solutions to HackerRank SQL problems on Alternative Queries. File metadata and controls. Readme License. Samantha interviews many candidates from different colleges using coding challenges and contests. Adi The PM's HackerRank concepts & solutions. Pivot the Occupation column in OCCUPATIONS so that each Name is sorted alphabetically and displayed underneath its corresponding Occupation. This collection serves as a useful resource for improving SQL skills and problem-solving techniques. The repository contains 6 folders. Output one of the following statements for each record in the table: Equilateral: It’s a triangle with 3 sides of equal length. 1 watching. Sign in Product SQL; Solutions are coded using Java 8. It is organized into six folders, each containing my solutions for easy, medium and difficult challenges executed in Contains solved queries for the Hackerrank SQL (Intermediate) Skills Certification Test 🎓. SQL. Advanced Select. Hermione decides the best way to choose is by determining the minimum number of gold galleons needed to buy each non 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. This was curated after solving all 58 questions, and achieving a score of 1130 points (WR1) In this post, we will be covering all the solutions to SQL on the HackerRank platform. MySQL Server; Problem. These problems are generated by HackerRank, but the solutions are provided by Niyander. 1) Revising ALL Problem: Query all columns (attributes) for every row in the CITY table. Each solution is written in structured query language (SQL), showcasing my proficiency across various levels of difficulty, from basic queries to advanced topics like joins, aggregations, and window functions. DevSecOps DevOps CI/CD View all use cases By industry. The report must Hello coders, today we are going to solve Print Prime Numbers HackerRank Solution in SQL. 82%. Sample Output. Advanced Join. 02%. This repository This repository contains My Solutions of SQL challenges on HackerRank and you can see multiple solutions for the same challenge. We have covered the topics of subqueries, window functions, joins, and more. Problem Harry Potter and his friends are at Ollivander’s with Ron, finally replacing Charlie’s old broken wand. vbguumrxudyhttqexafpcnvdnrpwokfetztdvlsxwthhohvhimdigl