Hackerrank sql code Reload to refresh your session. Contribute to mrsatyadeeptiwari/hackerrank_SQL_codes development by creating an account on GitHub. Effective solutions to hackerrank. -- 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. Blame. 5 of 6; Submit to see results When you're ready, submit your solution! Remember, you can go back and refine your code Welcome to my repository for solving SQL problems on HackerRank! This repository contains solutions to a variety of SQL challenges and exercises that I’ve completed on HackerRank. If so, my solution should work fine, I even checked it today by inserting the code to the hackerrank's code editor and it passed the sample test case. Problem. ADMIN MOD Why is CTE not working on HackerRank in my account? Discussion I am new to Hackerank, so I am not sure if this is something I missed or system-wide. Provide feedback We read every piece of feedback, and take your input very seriously. Footer select a. 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. Write a query to print the contest_id, hacker_id, name, and the sums of total_submissions, total_accepted_submissions, total_views, and total_unique_views for each contest sorted by contest_id. SQL tasks from HackerRank site. country order by a. 4. filter out wands with duplicated power and age 3. Anyway, as we are supposed to print the total number of challenges created by each student the WHERE clause: Contains solved queries for the Hackerrank SQL (Basic) Skills Certification Test 🎓. 67 forks. Q. Basic . CODE")- that does the pairing of every row in the first table to the corresponding row in the second table. The algorithmic challenges come with test cases which can be increasingly difficult to pass. country = b. Watchers. The output is in a "code-ish" format. Provide feedback We read every piece of Problem. Find and fix 📂 HackerRank SQL code challenges solutions Topics. Contribute to hnamtraan/hackerrank-sql development by creating an account on GitHub. Solved. SQL (Intermediate) SQL (Advanced) Difficulty. But I guess that you'll have less questions available SQL (Intermediate) SQL (Advanced) Difficulty. Contains solved queries for the Hackerrank SQL (Basic) Skills Certification Test 🎓. filter out evil wands 4. By detailing sales figures per city and identifying customers who spent 25% or less than Hello coders, today we are going to solve Contest Leaderboard HackerRank Solution in SQL. About. Contribute to evan999/HackerRank-Test-Exercises development by creating an account on GitHub. Solved queries for the Hackerrank SQL (Basic) Skills Certification Test 🎓. - MohamedAmerHame Skip to content. 10 Days of JavaScript; 10 Days of Statistics; 30 Days of Code; HackerRank Algorithms; HackerRank Linux Shell; HackerRank C; HackerRank C++; HackerRank Java; HackerRank Python; The thing that bothers me with HackerRank SQL questions is that it doesn't show the SQL queries output properly, like with a table, with the column names etc. The STATION table is described as follows:. Each solution is designed to demonstrate strong analytical and query-writing skills. where wp. phone_number) from customers as a left join country_codes as b on a. SQL (Basic) SQL (Intermediate) SQL (Advanced) Difficulty. Instant dev environments Issues. Sign in Product GitHub Copilot. Grades contains the following data: Ketty gives Eve a task to generate a . 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 You signed in with another tab or window. - 12Ruturaj/HackerRank-SQL Search code, repositories, users, issues, pull requests Search Clear. sort table */ with price_rank as -- ranks wands based on price for duplicated power & age ( select id, age, Solutions of Software Engineer Role Certificate of Hackerrank using Python & MySQL. Going through them greatly Contains solved queries for the Hackerrank SQL (Basic) Skills Certification Test 🎓. 3 Algorithmic Challenges. 03%. Advanced Select. Readme Activity. 5 of 6; Submit to see results When you're ready, submit your solution! Remember, you can go back and refine your code The HackerRank Software Engineer Certification tests crucial skills like problem-solving, SQL, and REST APIs – key abilities for junior software and backend developers. select sum (city. 1 watching. 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 Problem. However, in the above query I have tried sticking to using standard SQL. Annotated Code: Each solution is well-commented and explained to aid understanding and learning. The FROM clause alone would yield a Cartesian product rather than a join. I have taken HackerRank test on 9th Oct 2022. lubuzzxx. Hackerrank is a great platform to practice SQL queries. country_code, a. If SQL (Intermediate) SQL (Advanced) Difficulty. where LAT_N is the northern latitude and LONG_W is the western Hackerrank sql codes. Easy Navigation: Organized by SQL Codes of SQL Practice Module of Hackerrank. You signed out in another tab or window. 48%. Skip to content. Curate this topic Add this topic to your repo Contribute to aghodke24/HackerRank-Sql-Advanced-questions development by creating an account on GitHub. Contributors 5. countrycode = country. Subdomains. sql. 10 Days of JavaScript; 10 Days of Statistics; 30 Days of Code; HackerRank Algorithms; HackerRank Linux Shell; HackerRank C; HackerRank C++; HackerRank Java; HackerRank Python; In this HackerRank Functions in SQL problem solution, You are given two tables: Students and Grades. Contribute to viveksyngh/Hackerrank-Code development by creating an account on GitHub. com practice problems in C++, python and SQL - IhorVodko/Hackerrank_solutions Welcome to my collection of HackerRank SQL challenge solutions! 🥷 This repository showcases my optimized and efficient SQL queries for various problem-solving scenarios. Feel free to use, share, and improve upon it! 🚀 Level up your SQL skills with these HackerRank challenges and become a coding master! 🚀 Samantha interviews many candidates from different colleges using coding challenges and contests. Use on w. If multiple contestants have the same score in a contest, they are at the same rank. 4 of 6; Test your code You can compile your code and test it for errors and accuracy before submitting. Contribute to DucnaShare/HackerRank_SQL development by creating an account on GitHub. DSA Learning Series Another way to solve this query is using the pivot function in T-SQL. Members Online Former DBA/SQL dev (on-prem) now a Database Engineer for Azure SQL with DevOps/Source control stuff, etc. Nerves can peak during the programming test, and even experienced developers might blank project-euler hackerrank programming-languages hacktoberfest hackerrank-python self-learning hackerrank-solutions hackerrank-java hackerrank-cpp practice-programming hackerrank-c hackerrank-sql hackerrank-30-days-code hackerrank-regex hackerrank-interview-kit hacktoberfest-accepted hackerrank-databases Coding Tips; HackerRank Menu Toggle. Business_expansion. Contribute to swapniltake1/Hackerrank-Codes development by creating an account on GitHub. Please check 1. code. Amber's conglomerate corporation just acquired some new companies. company_code =company. Copy path. Stars. Note: Round the average to the nearest integer. Provide feedback We read every You signed in with another tab or window. Please check first if you selected MS SQL Server from the dropdown list. - mahedei/Hackerrank-SQL-Basic-Skills-Certification-Test-Solutions You signed in with another tab or window. You switched accounts on another tab While solving all SQL problems from HackerRank, I came across multiple solutions for the same problem. Certificate can be viewed here. Sign in Product SQL tasks from HackerRank site. Easy SQL (Intermediate) Max Score: 30 Success Rate: 94. Students contains three columns ID, Name and Marks. Please checkout my solutions and make use of it for the learning purpose only. Contribute to Leoteles/hackerRank-SQL-exercises development by creating an account on GitHub. challenge sql hackerrank hackerrank-solutions hackerrank-sql Resources. code = wp. Ketty doesn't want the NAMES of those students who received a grade lower than 8. Contribute to hatrang12/Hackerrank_SQL-Code development by creating an account on GitHub. Scan this QR code to download the app now. - adminazhar/hackerrank-SQL-basic-skills-certification-test-solution Easy SQL (Intermediate) Max Score: 30 Success Rate: 94. This part is bad: join employee. I am trying to give an SQL interview through HackerRank. Discussions. sql at master · raleighlittles/HackerRank-SQL My solutions to various hacker-rank SQL problems using DB2 syntax - chhayac/SQL-hackerrank-problems Coding Tips; HackerRank Menu Toggle. 15%. I also tried stratascratch and it's all good, everything is as you expect. The solutions of all SQL hackerrank challenges using MS SQL Server - GitHub - sonph301/HackerRank-SQL-Preparation-: The solutions of all SQL hackerrank challenges using MS SQL Server SQL tasks from HackerRank site. Aggregation. Unsolved. No packages published . 22 hours ago + 0 comments. Solution – Japanese Cities’ Names in SQL SELECT NAME FROM CITY WHERE COUNTRYCODE = "JPN"; Description: The above Problem (Japanese Cities’ Names) is generated by Hacker Rank but the Solution is Provided by You signed in with another tab or window. All SQL Codes. Provide feedback HackerRank / SQL / Basic-Join / full-score. It focuses on three main areas: SQL (Intermediate) SQL (Advanced) Difficulty. from city join country on city. The solutions of all the Hackerrank SQL challenges for all easy, medium and hard challenges executed on Oracle environment. 6: Binary Tree Nodes: Solution: We can write this query using simple case when statements. Answer: This query performs a join operation between the . sql at master · Shounok/hackerrank-sql-solutions. WITH quarterly_v AS ( SELECT algorithm, DATEPART(quarter,dt) AS quarters, SUM (volume) AS volume FROM coins c INNER JOIN transactions t ON t. You did such a great job helping Julia with her last coding contest challenge that she wants you to work on this one, too! The total score You signed in with another tab or window. Solutions of Software Engineer Role Certificate challenges. 68%. Resources. name, concat("+", b. The output column headers should be Doctor, Professor, Singer, and Actor, The repository dedicated to solutions for Hacker-rank Database problems, solved with MySQL - hackerrank-sql-solutions/The PADS. Basic Join. Harry Potter and his friends are at Ollivander's with Ron, finally replacing Charlie's old broken wand. 82%. population) from city, country where country. higher grades are entered first. Contribute to aghodke24/HackerRank-Sql-Advanced-questions development by creating an account on GitHub. Join over 23 million developers in solving code challenges on HackerRank, one of the best ways to prepare for programming interviews. com practice problems in C++, python and SQL - Hackerrank_solutions/SQL/SQL Project Planning. Write better code with AI Security. Hermione decides the best way to choose is by determining the minimum number of gold galleons needed to buy each non This repo contains Hackerrank SQL codes. No releases published. - modavidc/hackerrank-sql This repository contains MYSQL solutions of HackerRank-SQL-Intermediate-Certificate problems which I encountered during the test . Gaming. These questions not only tested my technical skills but also challenged me to think There is a table with daily weather data over the last 6 months of 2020, including the maximum, minimum, and average temperatures. Ketty gives Eve a task to generate a report containing three columns: Name, Grade and Mark. DSA Learning Series The HackerRank SQL Advanced Certification is a great way to showcase your SQL expertise. Contribute to vinayakt25/HackerRank---SQL development by creating an account on GitHub. e. This repository contains solutions to Hackerrank practice problems with SQL. customer_id, a. and tables using the field. I am not comfortable using CTE. HackerRank_SQL_Solution The Aim of this repository is to provide help and hint when you stuck at any question. Enter your code Code your solution in our custom editor or code in your own environment and upload your solution as a file. This intermediate SQL solution provides insights into product sales across cities, offering a comprehensive overview of customer spending patterns. Looking for some resources on getting familiar with best practices for You signed in with another tab or window. I tried to provide those with explanation. You switched accounts on another tab or window. Microsoft SQL Server Administration and T-SQL Programming including sql tutorials, training, MS SQL Server Certification, SQL Server Database Resources. The codes may give a head start if you are stuck somewhere! If you have better code (I like readable 4. Weather Observation Station 18. id, sub 📜 License. Join over 23 million developers in solving code challenges on HackerRank, one of the best ways to prepare for programming interviews. Code dedicated for MySQL engine. Skills. Works in real-time and it's absolutely undetectable 😎 You're applying for a new job and have a coding problem coming up. 107 stars. Customer_spending. Giải thích thêm: Ngoài việc lưu giữ code giải các bài tập, project còn bổ sung thêm tư duy làm của từng bài, link tham khảo, kiến thức tham khảo, cần thì có thể làm thêm 1 kênh Youtube để post các video để Medium SQL (Intermediate) Max Score: 30 Success Rate: 96. inner join (select month (record_date) as R , round(avg(data_value),0) as d from temperature_records where data_type="avg" group by month (record_date)) C Medium SQL (Intermediate) Max Score: 20 Success Rate: 96. /* output: - id, age, coins_needed, power - order by power desc, age desc - non-evil wands * when wands have the same power and age, choose the wand with the min price steps: 1. The repository contains 4 folders. COUNTRYCODE = COUNTRY. Contribute to ugaliguy/HackerRank development by creating an account on GitHub. Automate any workflow Codespaces. - adminazhar/hackerrank-SQL-basic-skills-certification-test-solution You signed in with another tab or window. Exclude hackerrank-sql Star HackerRank is a tech company that focuses on competitive programming challenges for both consumers and businesses, where developers compete by trying to program according to provided specifications. It then Python Solutions: Includes solutions to Python coding challenges, covering topics like data structures, algorithms, and more. Repo gathered by CodeRankGPT - Solve HackerRank coding problems during your coding interview, in real-time and undetectable 😎 Annotated solutions to HackerRank's SQL domain questions. In the Code Golf challenges, the score is based on the length of the code in characters. sql files for the solutions I submitted! The goal of /r/SQL is to provide a place for interesting and informative SQL content and discussions. The report must be in descending order by grade -- i. Just using this simple code to create CTE, in the end I want to create more complex code, that's why I am using CTE. These folders contain solutions for easy, medium, and difficult challenges executed on an MS SQL environment. Top Competitors. The repository dedicated to solutions for In this repository, you will find updated SQL solutions for all HackerRank problems as of 2024. continent = ' Asia ' and city Solution – Japanese Cities’ Attributes in SQL SELECT * FROM CITY WHERE COUNTRYCODE = "JPN"; Disclaimer: The above Problem (Japanese Cities’ Attributes) is generated by Hacker Rank but the Solution is Provided by You signed in with another tab or window. All Solutions are made in the MSSQL Syntax. code where continent = "Asia"; 0 | Permalink. The goal of this repository is to document and share SQL queries that I have implemented to solve real-world scenarios and coding challenges. coin_code = c. This 75-minute exam, shaped by feedback from 2,000 corporate partners, aligns closely with the demands of real-world jobs [1]. Harry Potter and his friends are at Ollivander’s with Ron, finally replacing Charlie’s old broken wand. Hard. Write a query to list the contestants ranked in the top 3 for each contest. Packages 0. The goal of /r/SQL is to provide a place for interesting and informative SQL content and discussions. It's actually the WHERE clause that makes this query a join ("WHERE CITY. group by sub. This repository contains My Solutions of SQL challenges on HackerRank and you can see multiple solutions for the same challenge. customer_id; Hackerrank SQL skill certification test . I recommend starting a hackerrank account ahead of time and doing some challenges on your own first to scratch the rust off if 4. Advanced Join. You signed in with another tab or window. Search syntax tips. Alternative Queries. Search code, repositories, users, issues, pull requests Search Clear. Intermediate This respository contains the solutions to the SQL questions on HackerRank based on Advanced Joins. Medium. SQL. Navigation Menu Toggle navigation. CodeRankGPT helps you solve HackerRank coding problems during your coding interview. join tables 2. This project is open-source and available under the MIT License. There are a total of 58 problems of varying difficulty level that test different concepts. Solve Challenge. /* SAS code */ CREATE TABLE initial_table AS ( SELECT stuff FROM table ); CREATE TABLE second_table AS ( SELECT stuff The best SQL Editor to Run SQL queries online for free. is_evil = 0) as sub. Coding Tips; HackerRank Menu Toggle. Submissions. Since HackerRank website doesn't allow 'create table' commands, I found a way around this by using 'select into #temptable" commands. company_code because you mixed up the join specification with the join condition. Hackerrank solved problem codes . 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. 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. ⚡ Solutions to coding challenges on HackerRank (Python, Java, C++, SQL, Problem Solving & Math) <\> Hackerrank SQL (Basic) Skills Certification Test Solutions. Amber’s conglomerate corporation just acquired some new companies. Write a query that gives month, monthly maximum, monthly minimum, monthly average temperatures for the six months. 10 Days of JavaScript; 10 Days of Statistics; 30 Days of Code; HackerRank Algorithms; HackerRank Linux Shell; HackerRank C; HackerRank C++; HackerRank Java; HackerRank Python; HackerRank Ruby; HackerRank SQL; HackerRank Functional Programming; CP Menu Toggle. Medium SQL (Basic) Max Score: 25 Success Rate: 98. CodeChef Menu Toggle. Leaderboard. So before looking at answer solve it by yourself. Contribute to Veerendranadh03/SQL development by creating an account on GitHub. If you are using a different SQL Language (for example MySQL) you might have to adapt the solution a little. - Sukanya807/HackerRank_SQL_Advanced_Joins SQL tasks from HackerRank site. Problem Link. Plan and track work Add a description, image, and links to the hackerrank-sql-advance topic page so that developers can more easily learn about it. Find the difference between the total number of CITY entries in the table and the number of distinct CITY entries in the table. Contribute to Itcharles/HackerRank-SQL development by creating an account on GitHub. 6 watching. SQL Solutions: Provides solutions to SQL challenges, focusing on query writing, database management, and optimization. Note 😉 : By just COPY & PASTE of answers you can get stars on profile but NO KNOWLEDGE. Find and fix vulnerabilities Actions. Population Census . Write a SQL query to determine the average monthly rating for each product. Pivot the Occupation column in OCCUPATIONS so that each Name is sorted alphabetically and displayed underneath its corresponding Occupation. All Solutions in Hackerrank SQL Section. sql hackerrank hackerrank-solutions sql-history hackerrank-30dayschallange hackerrank-sql hackerrank-statistics hackerrank-sql-solutions hackerrank-solutions-github sql-hackerrank hackerrank-sql-challenge hackerrank-solution Hackerrank SQL skill certification test . Hackerrank-SQL-Solutions github mysql sql certificate hackerrank certification collaborate hackerrank-solutions hackerrank-sql hackerrank-sql-solutions gitlens hackerrank-certification student-vscode github-campus-experts hackerrank-certificatio Enter your code Code your solution in our custom editor or code in your own environment and upload your solution as a file. Or check it out in the app stores TOPICS. Forks. Topics My mysql code is: select case when N in (select P from BST) then case when P is null then concat(N,' Root') else concat(N, ' Inner') end else concat(N,' Leaf') end from BST order by N; It is a glitch in (or limitation of) the HackerRank parser for SQL input, which apparently cannot handle line breaks very well. Report repository Releases. Search syntax tips Provide feedback We read every piece of feedback, and take your input very seriously. The shorter the code, the higher the score. - adminazhar/hackerrank-SQL-basic-skills-certification-test-solution The HackerRank SQL Advanced Certification is a great way to showcase your SQL expertise. Medium SQL (Intermediate) Max Score: 30 Success Rate: 96. These questions not only tested my technical skills but also challenged me to think Join over 23 million developers in solving code challenges on HackerRank, one of the best ways to prepare for programming interviews. DSA Learning Series Effective solutions to hackerrank. sql at master · IhorVodko/Hackerrank_solutions You signed in with another tab or window. Contribute to sanketd96/Hackerrank-SQL-Practice development by creating an account on GitHub. Easy. sql & 2. 2 Code Golf. This repository contains solutions to various SQL challenges and problems solved on HackerRank. . It's frustrating. The specific scoring details will be given in the challenge statement. Status. - HackerRank-SQL/Occupations. Instead, you wanted: Easy SQL (Intermediate) Max Score: 30 Success Rate: 94. Order your output by ascending company_code. 50%. Basic Select. code WHERE DATEPART(year,dt) = 2020 GROUP BY SQL tasks from HackerRank site. WITH TOTAL_SUBMISSIONS AS( SELECT * FROM View_Stats) SELECT * FROM Python, SQL 2 question of IBM code assessments in hackerrank - Naeemeh146/IBM-Interview-DataScience-Hackerrank-code-assesment You signed in with another tab or window. select Problem. 0 stars. foyi twuzyd tctu amql fwj dvwrmcw ntqn euhfi qeeea uxwp