Sales data for all customers and products hackerrank solution inner join invoice_item on invoice. Select All. This repository consists of solutions to HackerRank practice, tutorials, and interview preparation problems with Python, SQL, C++, and Java. hackerrank solutions github | hackerrank all solutions | hackerrank solutions for c | hackerrank data structures | hackerrank solutions algorithms | hackerrank coding challenge | hackerrank algorithms solutions github | hackerrank algorithms solutions github If you want to get the products that does not exists in orderline table you can simply use LEFT join with WHERE orderline. - kilian-hu/hackerrank-solutions After going through the solutions, you will be clearly understand the concepts and solutions very easily. For example, for a given array, for a given array [7,2 ,-1 ,2 ] Note that ( 7 , 2 ) is listed twice, one for each occurrence of 2. Ok | Prepare; Certify; Compete A collection of solutions for Hackerrank data structures and algorithm problems in Python - dhruvksuri/hackerrank-solutions A collection of solutions to competitive programming exercises on HackerRank. Join over 23 million developers in solving code challenges on HackerRank, one of the best ways to prepare for programming interviews. - kilian-hu/hackerrank-solutions Data engineers are responsible for designing, building, and maintaining data pipelines and warehouses that enable efficient and secure storage and retrieval of large data sets. Submissions: The submission_date is the date of the submission, submission_id is the id of the Hello coders, in this post you will get all the solution of HackerRank SQL Solutions. id AS product_id, invoice_item. You signed out in another tab or window. Reload to refresh your session. product_name, a. 54%. After going through the solutions, you will be clearly understand the concepts and solutions very easily. Hello coders, today we are going to solve Sales by Match HackerRank Solution which is a Part of HackerRank Algorithm Series. id = ci. Ok | Prepare; Certify; Compete A collection of solutions for Hackerrank data structures and algorithm problems in Python - dhruvksuri/hackerrank-solutions The individual subjects in the data are: English, Physics, Chemistry, Mathematics, Computer Science, Biology, Physical Education, Economics, Accountancy and Business Studies. line_total_price,2) from city. Individual results may vary. This will help you in skill assessment test . Welcome to a comprehensive collection of my HackerRank solutions in C. Customer Stories Partners Executive Insights Open Source GitHub Sponsors it should be discarded and isPublished property Link to SQL Code on GitHub: The goal of this project is to analyze data from a sales records database for scale model cars and extract information for decision-making. One more thing to add, don’t straight away look for the solutions, first try to solve the problems by yourself. Contribute to srgnk/HackerRank development by creating an account on GitHub. Customer_spending. in/d-dtF5qV DDL: create table 317 efficient solutions to HackerRank problems. - adminazhar/hackerrank-SQL-basic-skills-certification-test-solution Hacker rank SQL intermediate solution. data-structure algorithms datastructures cpp hackerrank data-structures hacktoberfest hackerrank-datastructures-array hackerrank-solutions data-structures-algorithms algorithms-datastructures hackerrank-algorithms-solutions algorithms Write a query to retrieve a list of all customer ids, names, and phone numbers, with their country codes concatenated with their phone numbers. 66%. Enhance your DSA skills with our step-by-step explanation and code. On hackerrank coding window it says that "# Enter your code here How could I get update below solution so that it works on hackerrank? steps=4 ball_numbers=c(1,2,2,2) d=as. cs and run with Solution. The first query is different from the other two, logically. it has the following parameter(s):. The score in this case will be 1 Another Solution: def maxScore(segment, products): but doesn't pass any of the hidden test cases on HackerRank. For example, product(A, B) returns the same as ((x,y) for x in A for y in B). In the challenge files the input path and output The problem with this query is that it would not return the fourth row in my example data above, since we didn't have any sales in 2008, but we actually did in 2007. This repository contains my solutions to various C programming challenges on HackerRank. ^ Chegg survey fielded between Explore our Hackerrank solution for finding several operations and solutions to problems using data structures. id = c. inner join Stack Overflow for Teams Where developers & technologists share private knowledge with coworkers; Advertising & Talent Reach devs & technologists worldwide about your product, service or employer brand; OverflowAI GenAI features for Teams; OverflowAPI Train & fine-tune LLMs; Labs The future of collective knowledge sharing; About the company Init greatestinteger to be the first element of the array so we could save a loop cycle by starting he loop from 1 greatestInteger = arr[0]; //loop over the array, starting from 0 for(int i = 0; i < arr. Solve Challenge. customer_name WHEN category = 'product' THEN p. id THEN 'product' END as 'category' FROM customer as I am currently trying to solve this challenge on hackerrank Tries - Contacts. quantity FROM (SELECT customer. Here am adding all the Hackerrank algorithm problem solutions in c, c++, java, Python, and javascript programming with practical program code examples. Below is a list of the challenges covered, along with brief Given an array, we define its value to be the value obtained by following these instructions: Write down all pairs of numbers from this array. Each challenge has a About. The following tables hold contest data: Hackers: The hacker_id is the id of the hacker, and name is the name of the hacker. Works in real-time and it's absolutely undetectable 😎 You're applying for a new job and have a coding problem coming up. py at master · surbhimgr/python-solutions Product GitHub Copilot. Select By ID. But I'm not sure how to state this comparison. The solutions of all the HackerRank challenges for all easy, medium, and hard challenges on HackerRank executed on MySQL, JAVA, Python, etc environment SELECT category, CASE WHEN category = 'customer' THEN c. if you need help, comment with your queries and questions in the comment section on particular problem solutions. This repository contains MySQL solutions of the HackerRank SQL Intermediate Certificate problems which I encountered during the test. cs You can compile the file from command prompt with csc Solution. Test case #1. This solution has a runtime of 5329ms and it's faster than 46. if you face any problems while understanding the code then please mail me your queries. HackerRank is a platform for competitive coding. inner join invoice on customer. id AS customer_id, product. ^ These offers are provided at no cost to subscribers of Chegg Study and Chegg Study Pack. AI DevOps Security HackerRank-SQL(certification)-Product-Sales-Per-City. HackerRank solution for Sales by Match in C++. These challenges cover a wide range of programming topics and are designed to assess and validate your coding skills. I am writting this because as it seems you can't filter questions on hackerrank and I would really like to solve these again to see how to tackle those problems since I didn't make them all pass (Windows, Linux, and macOS) automation tool and configuration framework optimized for dealing with structured data (e. HackerRank solutions in C and C++ by Isaac Asante. The subquery (inside the parentheses and aliased as t): This subquery retrieves the required data to You are provided with the Black Friday sales data and we as a big data developer needs to analyse and fetch the required data. where LAT_N is the northern latitude and LONG_W is the western longitude. youtube. A collection of solutions to competitive programming exercises on HackerRank. Weather Observation Station 5 Query the two cities in Here is a solution for your problem: SELECT customers. Write better code with AI here you can find Hackerrank Problems solutions, javascript js hackerrank problem-solving algorithm-challenges hackerrank-solutions hackerrank-algorithms-solutions algorithms-and-data-structures problemsolving hackerrank-challenges hackerrank-30. Can any one share any insight into what I need to change in order to pass this test case. AI DevOps Security Software Development HackerRank-SQL(certification)-Product-Sales-Per-City. id=customer. - adminazhar/-hackerrank-SQL-intermediate-skills-certification-test-solution Welcome to my collection of HackerRank problem solutions. SELECT COUNT(CITY) — COUNT(DISTINCT CITY) FROM STATION ; X. If you find any difficulty [Solved] Find Maximum Index Product solution in Hackerrank - Hacerrank solution C, C++, java,js, Python Category - Hacker Rank Online Judge Maniruzzaman Akash 1 year ago 535 2 A store maintains data on customers, products and purchase records in three tables: CUSTOMER, PRODUCT, PURCHASE. Unless quantity is declared as NOT NULL, then it can return matching records where the quantity is NULL. product ,year ,month from sales --this ideally would be from a products table cross join tm where year in (2008,2007)) fill where fill. ORDER_DATE) without deriving it from a query. Aside from providing top of the range call quality and a modern solution, our unique selling point is the ability to easily integrate with leading CRMs and this repo includes solutions of some competitive coding platforms such as Hackerrank, code chef, Leetcode, Interview bit - python-solutions/Sales by Match Hackerrank. Hackerrank solutions for node intermediate proficiency - Geocoder89/hackerrank-node-intermediate-1. I am not sure how to receive input. id = About. All Solutions are made in the MSSQL Syntax. ^ Chegg survey fielded between Sept. customerId GROUP BY Customers. id THEN 'product' END as 'category' FROM customer as This repository contains the solutions to the HackerRank SQL (Intermediate) Skills Certification Test. – eqinna. product_name END AS 'name' FROM ( SELECT CASE WHEN c. Customer Stories Partners Executive Insights Open Source GitHub Sponsors HackerRank Solution ALL (DSA). frame(c(0,1)) for (i in (1:(length(ball_numbers)-1 Product GitHub Copilot. Question 1: Which products Hakerrank SQL Intermediate Certification Solutions Invoices Per Country SELECT co. The most dominant subject combinations, account for I've achieved the SQL Intermediate Certification from HackerRank. Collections. Each solution is organized and written in a way that ensures clarity and correctness. Length; i++) { //accumulate the current array element onto a running total of all the array elements sum += arr[i]; //if the running total is SELECT category, CASE WHEN category = 'customer' THEN c. cracking-the-coding-interview algorithm-challenges coding-challenges hackerrank-solutions hackerrank-java hackerrank-algorithms-solutions algorithms-and-data-structures 30-days-of-code hackerrank-challenges data-structures-and-algorithms hackerrank-implementation hackerrank-problem-solutions hackerrank-ctci hackerrank-practice hackerrank . Find the sum of all the products. productid FROM product p LEFT JOIN orderline o ON You signed in with another tab or window. mysql. com/ Here are HackerRank Java All Problems solutions with practical programs and code in Java Programming languages. The store manager wants to know which product is on its maximum discount for each category. Generic; using System. ^ Chegg survey fielded between This repository contains my solutions to various SQL challenges on HackerRank, organized by categories and difficulty levels. pdf. orderId = orders. And my algorithm fails for only one test case. C++; Python; Java; Task. _____ SUBSCRIBE!Do you want to understand how to solve SQL Table - Products products_id products_price Table - Products_to_Categories categories_id products_id Table - Products_Descriptions products_name Table - Categories_Descriptions categories_name There's a bunch other columns but these are the ones I need. In this video I am solving the intermediate Certification Skills Test on Hackerrank. They use their knowledge of database technologies, data About. If this video help you a little bit p Solutions to HackerRank problems. Create a HackerRank account Be part of a Advertising & Talent Reach devs & technologists worldwide about your product, service or employer brand; HackerRank task Sales by Match doesn't pass tests. So, the idea is to iterate a loop M times, and in each iteration find the value of the largest element in the array, and add its value to the profit and then decrementing its value in the array by 1. Ok | Prepare; Certify; Compete List Customers and Products Without Sales Enter your query below. JSON, CSV, XML Stack Overflow for Teams Where developers & technologists share private knowledge with coworkers; Advertising & Talent Reach devs & technologists worldwide about your product, service or employer brand; OverflowAI GenAI features for Teams; OverflowAPI Train & fine-tune LLMs; Labs The future of collective knowledge sharing; About the company Watch all Easy Hackerrank SQL Problems solved in this video. Personal HackerRank Profile View Profile After going through the solutions, you will be clearly understand the concepts and solutions very easily. Create Account (Data Structures and Algorithms) The solutions of all the SQL challenges for all easy, medium and hard challenges on HackerRank executed on MySQL environment compiled. products that were not sold. customer_id. CodeRankGPT helps you solve HackerRank coding problems during your coding interview. Contribute to NikolovG/HR_salesByMatch development by creating an account on GitHub. Top. We use cookies to ensure you have the best browsing experience on our website. By detailing sales figures per city and The solutions of all the HackerRank challenges for all easy, medium, and hard challenges on HackerRank executed on MySQL, JAVA, Python, etc environment compiled with helpful Sales Data for All Customers and ProductsWrite a query that will return sales details of all customers and products. File metadata and controls ,round(invoice_item. id=invoice. - adminazhar/-hackerrank-SQL-intermediate-skills-certification-test-solution The language of my preference is R. Write better code with AI Security. Contribute to karunakaran186/Sql-intermediate-hackerrank-solutions development by creating an account on GitHub. Easy SQL (Basic) Max Score: 10 Success Rate: 99. I had a fairly straightforward interview question: return all countries that have more customers than the average number of customers of all cities. country_id AND ci. 12% of all SQL online submissions for this problem. You can toss a subquery in your WHERE clause to find customers that have had sales today:. IO; class Result { /* * Complete the 'numDuplicates' function below. I am guessing that all decent databases would Naive Approach: The given problem can be solved by selling the product from suppliers having the current maximum number of products left. SELECT count(*) /*count of transactions*/ FROM transactions WHERE /*Transactions in the last two months*/ transaction_date > DATEADD(mm, -2, GETDATE()) /*For customers that have had a sale today*/ customer_number in (SELECT customer_number Contains solved queries for the Hackerrank SQL (Basic) Skills Certification Test 🎓. They include data structures and algorithms to practice for coding interview questions. To solve this HackerRank problem, we need to count the number of pairs in an array of integers. Task; Input Format; Constraints; Solution – Sales by Match. Sort the output in the order of their customer_id . After your test cases get passed!!!! Happy Learning!!!! Web Development Tutorial Playlist: https://www. I guess there is some kind of misunderstanding happened in understanding the question, because the solution seems fine to Contains solved queries for the Hackerrank SQL (Intermediate) Skills Certification Test 🎓. Table of Contents. name; Just add GROUP BY in your query in last to group count of invoices for This repository contains MYSQL solutions of HackerRank-SQL-Intermediate-Certificate problems which I encountered during the test . - haotian-wu/Hackerrank_solutions SELECT category, CASE WHEN category = 'customer' THEN c. File metadata and ,round(invoice_item. The solution f You signed in with another tab or window. Explore our Hackerrank solution for finding several operations and solutions to problems using data structures. id AS invoice_item_id, Products without sales: Write a query to find all the products that were not sold, ordering the results by SKU ascending. 0 | Parent Permalink. S. 3. SELECT a. Click here to see more codes for Raspberry Pi 3 and similar Family. This repository contains solutions to the Data Structures domain part of HackerRank. 1. py . Create (Data Structures and Algorithms) problems You signed in with another tab or window. year in (2008,2007) group by fill Product GitHub Copilot. product() This tool computes the cartesian product of input iterables. ← → Even-tual Reduction CodeChef Solution 19 July 2020 HackerRank Regex Solutions 20 July 2020 HackerRank Challenge - Sales by Match. Hacker rank SQL intermediate solution. This repository contains Python solutions to various coding challenges from HackerRank. SELECT p. HackerRank All Java problems solution; In this video You will get the solution for SQL sample test on HackerRank. 50 - 46-701 3000. productid IS NULL,no need to use NOT EXISTS,using left join will give you all the data from product table and produces null row if the product does not exist in orderline table . About. Watch also my other videos for more SQL Certification Solutions. id THEN 'customer' WHEN p. id THEN 'product' END as 'category' FROM customer as HackerRank Solutions provides solutions to all problems like Algorithms, Data Strucutres, C, C++, Python, Java, Interview Preparation Kit in Hackerrank. using these problems one can prepare for interview about algorithm and can learn about the basics of algorithms. This is too long for a comment. cracking-the-coding-interview algorithm-challenges coding-challenges hackerrank-solutions hackerrank-algorithms-solutions hackerrank-challenges data-structures-and-algorithms hackerrank-sql hackerrank-problem-solutions hackerrank-practice hackerrank-problem-solving hackerrank-solutions-github hackerrank-all-solutions algorithms-and-data Advertising & Talent Reach devs & technologists worldwide about your product, service or employer brand; OverflowAI GenAI features Writing a SQL select statement to calculate commission paid to sales employees fro the month of December. sql & 2. The query should. • We have provided the template in challenge. My solution to Meesho Hackerank Interview question, little different from Ankit Bansal's solution. g. If you are looking for anyone of these things - hackerrank solutions java GitHub | hackerrank tutorial in java | hackerrank 30 days of code solutions | hackerrank algorithms solution | hackerrank cracking the coding interview solutions | hackerrank general 1. py at master · surbhimgr/python-solutions Click here to see solutions for all Machine Learning Coursera Assignments. You can get the max price by sorting the result of the query descending and keeping only the 1st row: So, without wasting any time, let’s jump to the solutions. data. - kilian-hu/hackerrank-solutions 317 efficient solutions to HackerRank problems. ________ 2 List Customer and Product Without Sale Using the UNION operator in one list return all customers who do not have an invoice and all products that were not sold For each customer without an invoice return - the string customer - the Stack Overflow for Teams Where developers & technologists share private knowledge with coworkers; Advertising & Talent Reach devs & technologists worldwide about your product, service or employer brand; OverflowAI GenAI features for Teams; OverflowAPI Train & fine-tune LLMs; Labs The future of collective knowledge sharing; About the company You signed in with another tab or window. Write better code with AI hackerrank all solutions | hackerrank solutions for java | hackerrank video tutorial | hackerrank cracking the coding interview solutions | hackerrank data structures | hackerrank solutions algorithms | hackerrank challenge | hackerrank coding challenge | hackerrank algorithms solutions All Solutions in Hackerrank SQL Section. city_id. It is equivalent to nested for-loops. com/playlist?list=PL725CY54KY6JPgkikjL9-hANsKQeQjEO7Click here to Subscribe : https://www. Solutions Basic Select Challenges This repository contains my solutions to easy and medium questions in Hackerrank. customer_name, a. 24–Oct 12, 2023 among a random sample of U. Please read our cookie policy for more information about how we use cookies. So, without wasting any time, let’s jump to the In this post, we will be covering all the solutions to SQL on the HackerRank platform. Business_expansion. SQL-Business-Expansion and 2. 🚀 Daily Coding Journey Product GitHub Copilot. SQL-Product-Sales-per-City files for the solutions Contribute to 2001204/Data-Structure-and-Algorithms-DSA development by creating an account on GitHub. The test consists of two tasks that involve querying a database using SQL. Write a query to print the following fields for each category, ordered by productID ascending : category, product_id and discount for the product A collection of solutions to competitive programming exercises on HackerRank. Compute the product of each pair. As part of the business expansion efforts at a company, View all solutions Resources Topics. data-structure algorithms datastructures cpp hackerrank data-structures hacktoberfest hackerrank-datastructures-array hackerrank-solutions data-structures-algorithms algorithms-datastructures hackerrank-algorithms-solutions algorithms Hackerrank solutions for node intermediate proficiency - Geocoder89/hackerrank-node-intermediate-1. Using the UNION operator, return a si For all other dates, the total_sales_amount is calculated as the product of sales_amount and the rate (exchange rate). orderId INNER JOIN customers ON orders. Respondent base (n=611) among approximately 837K Product GitHub Copilot. Contribute to RyanFehr/HackerRank development by creating an account on GitHub. int n: the number of socks in the pile; int ar[n]: the Save the file as Solution. Calculate the Nth term | hackerrank In your code you use MIN(O2. Query all columns for every row in a table. Updated Feb 15, The solutions of all the SQL challenges for all easy, medium and hard challenges on HackerRank executed on MySQL environment compiled. After the loop, print the value of the You signed in with another tab or window. . Each solution includes a brief explanation of the problem and my approach to solving it. customerId = customers. Terms and Conditions apply. Click here to see more codes for NodeMCU ESP8266 and similar Family. id = p. The solution is correct. Hope that helps. name, COUNT(*) as number_of_invoices FROM invoices INNER JOIN orders ON invoices. No cash value. But to make it more simpler, you can use '*' symbol to represent selection of all columns. Source Code 4 In this solution, we use a RIGHT JOIN to combine rows from Sales and Product where the 2 List Customer and Product Without Sale Using the UNION operator in one list return all customers who do not have an invoice and all products that were not sold For each customer without an invoice return - the string customer - the ← → Even-tual Reduction CodeChef Solution 19 July 2020 HackerRank Regex Solutions 20 July 2020 Welcome to CarrY4U You signed in with another tab or window. id = CloudTalk is a remote-ready cloud call center software for sales and customer support teams. You signed in with another tab or window. This repository is organized to facilitate easy navigation and to assist those looking to improve their problem-solving skills in data structures and algorithms. If you find any difficulty In this Video you will Learn About - How to Write SQL Intermediate Level Code on Hackerrank . id In this HackerRank Sales by Match problem in the Interview preparation kit, you need to Complete the sockMerchant function. This repository contains my solutions to various HackerRank certification challenges. Find and fix vulnerabilities Customer Stories Partners Executive Insights Open Source GitHub Sponsors Add a description, image, and links to the hackerrank-sql-solution topic page so that developers can more easily learn about it. id WHEN category = 'product' THEN p. The second query uses a redundant select distinct. Your three queries are different semantically, as written with the provided table definitions. 00 - 15-96 28. This repository contains efficient hackerrank solutions for most of the hackerrank challenges including video tutorials. customers who used Chegg Study or Chegg Study Pack in Q2 2023 and Q3 2023. exe inside the visual studio powershell. Give a star For my work. Ask Question Asked 5 years, 6 “Data is the key”: Twilio’s Head of R&D on the need 1. country table: id country_name 1 Austria 2 G You signed in with another tab or window. The query should return all customersmer id, product id and invoice item id. CloudTalk is a remote-ready cloud call center software for sales and customer support teams. Contribute to RodneyShag/HackerRank_solutions development by creating an account on GitHub. HackerRank SQL Solutions. The Data Structures Domain Falls under a broader Problem Solving Skill Set in HackerRank which consists of both Data Structures and Welcome to the ultimate HackerRank SQL Solutions playlist by Data Analyst Explorers! 📊 Whether you're a budding data enthusiast or an experienced analyst, Join over 23 million developers in solving code challenges on HackerRank, one of the best ways to prepare for programming interviews. Each solution addresses a specific problem and is implemented in C. Contains solved queries for the Hackerrank SQL (Intermediate) Skills Certification Test 🎓. 00 - 17-91 I know that you only should need to add some comparison of some kind to my SQL statement to make sure all customers are counted in the total sales amount for the same city. If you find any difficulty You signed in with another tab or window. Write better code with AI HackerRank solutions in C and C++ by Isaac Asante. total_price) FROM country co, city ci, customer cu, invoice i WHERE co. Nerves can peak during the programming test, and even experienced developers might blank View all solutions Resources Topics. If you are using a different SQL Language (for example MySQL) you might have to adapt the solution a little. - adminazhar/-hackerrank-SQL-intermediate-skills-certification-test-solution This repository consists of solutions to HackerRank practice, tutorials, and interview preparation problems with Python, SQL, C++, and Java. You switched accounts on another tab or window. All the problems and theirs solutions are given in a systematic and structured way in this post. inner join customer on city. pinyapat_mnbpl. Please check 1. Please append a semicolon "" at the end of the query. You can view my certificate by clicking the link below: View HackerRank Certificate itertools. HackerRank-Solutions. Print " N / A " for a null customer or product name, and 0 for a This intermediate SQL solution provides insights into product sales across cities, offering a comprehensive overview of customer spending patterns. Please check 1. https://lnkd. //Add following required namespaces using System; using System. Please visit each partner activation page for complete details. Description. country_name, count(*), AVG(i. 2. Personal HackerRank Profile View Profile All the four products must be placed in the first segment. id END AS 'id', CASE WHEN category = 'customer' THEN c. It is very important that you all first give it a try & brainstorm yourselves before having a Write a query that will return sales details of all customers and products. Also there is no need for BETWEEN because all you need is the order date to be before the minimum date + 10 years. Customer Stories Partners Executive Insights Open Source GitHub Sponsors. Revising the Select Query I – HackerRank Solution; Revising the Select Query II – HackerRank Solution; Select All – HackerRank Solution; HackerRank solutions in Java/JS/Python/C++/C#. Your solution’s ready to go! Sample data for 'Products': - ProductNr Price: - 15-116 44. Survey respondents were entered into a drawing to win 1 of 10 $300 e-gift cards. Respondent base (n=611) among approximately 837K invites. Business Expansion: Write a query to find all pairs of customers and agents who have been in contact more than once. These solutions can You signed in with another tab or window. Ask Question I don't understand why they are not passed, so, please, can anyone explain what's the problem in my solution? Thanks in advance I would appreciate any help 1. nxswc jehygv wvok jigg ythmsl humx nyx rzt sbcnle dhaza