Sales data for all customers and products sql hackerrank solution As a data analyst at IBM, you have been asked to analyze sales data from the IBM e-commerce platform. Crack your coding interview and get hired. As per the question title I would like to understand which SQL would be efficient and why based on the below solutions assuming the data volumes are high in both the tables PRODUCTS( millions of rows ) AND SALES( billions of rows ). There are almost always multiple solutions to the same problem. product_id = p. Complex Joins: Navigate through intricate relationships between tables. This repository contains python solutions for some of the HackerRank problems from the SQL genre. product_id = pr. Topics Jul 1, 2022 路 All in all, I know my code needs to partition over the customer id, and will need some way to rank and output the top #1 customer. This repository contains MYSQL solutions of HackerRank-SQL-Intermediate-Certificate problems which I encountered during the test . Jul 11, 2020 路 The actual question is all customers details even those without invoices and all products even those which are not sold. _____ SUBSCRIBE!Do you want to understand how to solve SQL This repository contains MySQL solutions of the HackerRank-SQL-Intermediate-Certificate problems which I encountered during the test. These are not the only solutions. Example Input: Jan 14, 2024 路 Dive into SQL mastery with our Data Analyst Explorers series! 馃搳 In this video, we dissect HackerRank's SQL challenge, offering a step-by-step solution to bo Contains solved queries for the Hackerrank SQL (Basic) Skills Certification Test 馃帗. invoice_id and ii. Please checkout my solutions and make use of it for the learning purpose only. 2024 among a random sample of U. Personal HackerRank Profile View Profile Search our library of 100M+ curated solutions that break down your toughest questions. Intermediate SQL HackerRank Solutions This repository contains comprehensive solutions to all SQL challenges on HackerRank, designed to aid in your preparation and mastery of SQL. product_id; Output: Aug 12, 2022 路 During an SQL interview problem, candidates receive sets of data tables, input formats, and output formats and are challenged to perform a series of queries or functions with that data. productid FROM product LEFT JOIN orderline USING (productid) WHERE orderline. 170+ solutions to Hackerrank. - JawadSher/SQL-Problems-Solutions-HackerRank Hackerrank SQL (Basic) Skills Certification Test Solutions. SELECT c. line_total_price), 2) as tot from city ci, customer cu, invoice i, invoice_item ii, product pr where ci. city_id and cu. Click here to see more codes for Raspberry Pi 3 and similar Family. Your solution’s ready to go! About. Apr 22, 2021 路 Click here to see solutions for all Machine Learning Coursera Assignments. Contains solved queries for the Hackerrank SQL (Basic) Skills Certification Test 馃帗. Oct 11, 2023 路 github mysql sql certificate hackerrank certification collaborate hackerrank-solutions hackerrank-sql hackerrank-sql-solutions gitlens hackerrank-certification student-vscode github-campus-experts hackerrank-certificatio hackerrank-sql-certificate hackerrank-sql-solution hackerrank-intermediate-sql 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 This repository contains MySQL solutions of the HackerRank SQL Intermediate Certificate problems which I encountered during the test. SQL query for overview of purchased products per user. Reason: Grouping and aggregating data are necessary for summarizing data and performing aggregate calculations. Resources This repository is a comprehensive collection of SQL case studies, solutions to problems from various platforms, and advanced projects, all designed to demonstrate my proficiency in SQL. id = ii. customerid, p. sale_id, p. id group by ci. In this project, I utilized MySQL Workbench to analyze extensive sales data from a supermarket. This table contains sales data, including the sales_date, sales_amount, and currency. This collection features a variety of SQL challenges from HackerRank, designed to help you sharpen your SQL skills. The test consists of two tasks that involve querying a database using SQL. - All-HackerRank-SQL-Challenges-Solutions/README. All Solutions are made in the MSSQL Syntax. - adminazhar/-hackerrank-SQL-intermediate-skills-certification-test-solution Watch all Easy Hackerrank SQL Problems solved in this video. Schema There are 2 tables: customer, invoice customer Name Type Description id int This …. " You signed in with another tab or window. quantity), 0) AS quantity FROM customer c LEFT JOIN invoice i on c. Company : DunzoSQL Coding 2 :Sales Data for All Customers and Products Answer) SELECT IFNULL(customer_name, "N/A") customer_name, IFNULL(product_name, "N/A") All HackerRank solutions for Python, Java, SQL, C, C++, Algorithms, Data Structures. Sep 14, 2023 路 List all customers who spent 25% or less than the average amount spent on all invoices. - adminazhar/hackerrank-SQL-basic-skills-certification-test-solution Mar 31, 2024 路 Query the following two values from the STATION table: The sum of all values in LAT_N rounded to a scale of 2 decimal places. If you are using a different SQL Language (for example MySQL) you might have to adapt the solution a little. Each solution is crafted to be efficient and clear, making this an excellent resource for anyone looking to strengthen their SQL skills. select ci. Oct 11, 2023 路 I took the HackerRank test on 10/11/2023. The objective was to gain insights into various aspects of the sales, including revenue generation, top-selling branches, customer segmentation, popular products, payment methods, and sales trends. I tried to provide those with explanation. Apr 22, 2021 路 While solving all SQL problems from HackerRank, I came across multiple solutions for the same problem. CodeRankGPT helps you solve HackerRank coding problems during your coding interview. The CITY table is described as follows: You signed in with another tab or window. 2 Questions are asked, as of now 2 questions will be asked from these questions, provided the solution also: Programs / Questions. sql & 2. S. product_id, ii. Sub-queries: Enhance your querying skills with nested queries. 1 Revising the Select Query I SQL 2 Revising the Select Query II SQL Welcome to my repository of SQL solutions for all the challenges on HackerRank. md at main · kumod007/All-HackerRank-SQL-Challenges-Solutions HackerRank concepts & solutions. sql and 2. Query all columns (attributes) for every row in the CITY table. The questions asked are Invoices Per Country and Product Sales Per City. This is what I have so far. This repository contains MySQL solutions of the HackerRank SQL Intermediate Certificate problems which I encountered during the test. Repo gathered by CodeRankGPT - Solve HackerRank coding problems during your coding interview, in real-time and undetectable 馃槑 Thousands of customers across various industries trust HackerRank for tech recruiting Industry Industry Financial Services Technology More Solution Solution Industry (HRW) University (HRC) Lateral / Internal Mobility Contigency / Agency Contribute to VivekSai07/Hackerrank-SQL-Intermediate-Skills-Certification-Test-Solution development by creating an account on GitHub. Sort the output in the order of their customer_id . You switched accounts on another tab or window. For each customer, display their name and the amount spent to 6 decimal places. Jan 22, 2025 路 This query joins the Sales and Products tables on the product_id column, groups the results by product name, and calculates the total sales revenue for each product. These solutions can be used as a reference for other learners or as a way to practice and improve SQL skills. Contains solved queries for the Hackerrank SQL (Intermediate) Skills Certification Test 馃帗. Ask Question Asked 3 years, 6 months ago. Apr 10, 2022 路 Why this video is 7. Note: Round the average to the nearest integer You signed in with another tab or window. - adminazhar/hackerrank-SQL-basic-skills-certification-test-solution Jan 24, 2024 路 SQL Question 8: Average Sales of IBM Products. Intermediate. - Sushanth72/SQL-HackeRank-Solutions Apr 1, 2023 路 Here are the 2 questions asked in HackerRank SQL Intermediate Certification Exam, these 2 will be available in one attempt. product_name, ROUND(sum(ii. Mar 24, 2018 路 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. Order the result by the amount spent from high to low. Certificate can be viewed here. - adminazhar/hackerrank-SQL-basic-skills-certification-test-solution Problem. Activities involved: Using GROUP BY and HAVING clauses to group and filter aggregated data. This repository contains solutions to HackerRank SQL challenges ranging from There is a tale with daily weather data over the last 6 months of 2020, including the maximum, minimum, and average temperatures. If multiple contestants have the same score in a contest, they are at the same rank. It is organized into six folders, each containing my solutions for easy, medium and difficult challenges executed in a MySQL environment. You signed in with another tab or window. Unions: Combine results from multiple queries efficiently. Dive deeper into SQL with complex joins, unions, and sub-queries. I also know I need a ROLLUP function to tally the total on the row below, but I haven't come to that part of my solution yet. Nerves can peak during the programming test, and even experienced developers might blank This repository contains my solutions to all the HackerRank SQL Practice Questions. com practice problems using Python 3, 小++ and Oracle SQL - marinskiy/HackerrankPractice You signed in with another tab or window. id This intermediate SQL solution provides insights into product sales across cities, offering a comprehensive overview of customer spending patterns. Apr 21, 2014 路 SELECT product. Give a star For my work. 12. sql files for the solutions I submitted! Here you will be able to find my HackerRank solutions to many challenghes, using C++, JavaScript, Python and SQL Correlated Materials Visit my Competitive programming guide and see also my HackerRank, GeeksForGeeks, Leetcode and other online judges solutions You signed in with another tab or window. Business_expansion. This repository contains a comprehensive set of SQL queries for every problem I've solved on the platform, categorized by difficulty and topic. " Country code | hackerrank Mysql certification solution Write a query to retrieve a list of all customer ids, names, and phone numbers, with their country codes concatenated with their phone numbers. The sum of all values in LONG_W rounded to a scale of 2 decimal places. 2 Questions are asked, as of now 2 questions will be asked from these questions, provided the solution also: Apr 6, 2023 路 The subquery selects the sales_date (s. Contribute to BlakeBrown/HackerRank-Solutions development by creating an account on GitHub. Please check 1. SQL-Product-Sales-per-City files for the solutions I submitted! Jun 20, 2020 路 It’s one of the most sought languages desired by the employers as the volume of data is increasing, in order to access the humongous data from respective databases, it is important to know this skill which would help you retrieve, update and manipulate data. These solutions are categorized by difficulty level and domain to make it easier to navigate and find what you need. 5 hours long? Because Im solving ALL of the SQL Problems on Hackerrank in this video. with columns , , , and , write a SQL query to find out the average sales quantity for each product on a monthly basis. SQL interview questions can cover a wide range of database concepts , including normalization, transactions, subqueries, joining, and ordering. See full list on github. It focuses solely on offering correct answers for SQL queries, joins, and aggregations, helping users pass the certification efficiently. customer_id and i. customers who used Chegg Study or Chegg You signed in with another tab or window. exchange_rate) and calculates a row number for each row. x), the exchange rate (e. Whether you're a beginner or an experienced developer, you'll find solutions and explanations for everything from basic queries to advanced data manipulation. Modified 4 months ago. In this post, we will be covering all the solutions to SQL on the HackerRank platform. Customer_spending. Question: Sales Data for All Customers and ProductsWrite a query that will return sales details of all customers and products. Domains Contains solved queries for the Hackerrank SQL (Basic) Skills Certification Test 馃帗. - adminazhar/hackerrank-SQL-basic-skills-certification-test-solution This repository consists of solutions to HackerRank practice, tutorials, and interview preparation problems with Python, SQL, C++, and Java. Customer Spending. Is Hackerrank SQL advanced certification useful for job applications? comments sorted by Best Top New Controversial Q&A Add a Comment cochiseandcumbria • This collection provides solutions to the HackerRank SQL Certification Test problems. Reload to refresh your session. I have taken HackerRank test on 9th Oct 2022. city_name, pr. Please check 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. id LEFT JOIN product p ON ii. Apr 1, 2023 路 Here are the 2 questions asked in HackerRank SQL Intermediate Certification Exam, these 2 will be available in one attempt. Query: SELECT s. Example Task: Write a query that groups data by a specific column and calculates the sum for each group. Basic . Click here to see more codes for NodeMCU ESP8266 and similar Family. 馃搳 This repository serves as a valuable resource for SQL practitioners, offering a variety of case studies You signed in with another tab or window. Contribute to ejaj/SQL development by creating an account on GitHub. Questions - Products Without Sales; Product Sales Per City 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. com Apr 1, 2023 路 Here are the 2 questions asked in HackerRank SQL Intermediate Certification Exam, these 2 will be available in one attempt. product_name, Coalesce((ii. product_name FROM Sales s JOIN Products p ON s. - Ishika63/HackerRank-SQL-Intermediate-Solution But let say I only want to show the the city/cities where someone has done at least 2 orders, and that there are two customers living in this city/cities, so what I want to do is to pick out the city/cities where a customer has made at least 2 orders, but then show the total sales amount for both the customers living in this city, even if the All Solutions in Hackerrank SQL Section. Welcome to the HackerRank Challenge Solutions repository! 馃帀 This repository contains my solutions to various coding challenges on HackerRank . Each solution includes a brief explanation of the problem and my approach to solving it. Solutions for all SQL challenges on HackerRank executed on MySQL and MS SQL Server. Hackerrank SQL Solution |#23 new companies| SQL|Data Analyst ExplorersDive into SQL mastery with our Data Analyst Explorers series! 馃搳 In this video, we diss This repository contains MYSQL solutions of HackerRank-SQL-Intermediate-Certificate problems which I encountered during the test . . customer_id LEFT JOIN invoice_item ii ON ii. These are the rows you want in the result. id ORDER BY c. Top Each solution includes a brief explanation of the problem and my approach to solving it. This repository contains my solutions to various SQL challenges on HackerRank, organized by categories and difficulty levels. The certificate can be viewed here. customer_name, p. Write a query to list the contestants ranked in the top 3 for each contest. The query shouldreturn all customers, even customers without invoices and also all products, even thoseproducts that were not sold. id = i. In this repository, you will find updated SQL solutions for all HackerRank problems as of 2024. - qanhnn12/SQL-Hackerrank-Challenge-Solutions You signed in with another tab or window. FROM sales_amount s: The sales_amount table is aliased as s. Hackerrank SQL (Basic) Skills Certification Test Solutions. This is the only video you will need to improve you Grouping and Aggregating Data. sql files for the solutions I submitted! Hacker Rank SQL. product_name order by tot Aug 13, 2021 路 Sales Data for all customers and products. productid LEFT JOIN will list all rows in product even when there is no JOIN partner in orderline. As part of the business expansion efforts at a company, your help is needed to find all pairs of customers and agents who You signed in with another tab or window. Works in real-time and it's absolutely undetectable 馃槑 You're applying for a new job and have a coding problem coming up. Thousands of customers across various industries trust HackerRank for tech recruiting Industry Industry Financial Services Technology More Solution Solution Industry (HRW) University (HRC) Lateral / Internal Mobility Contigency / Agency Contribute to VivekSai07/Hackerrank-SQL-Intermediate-Skills-Certification-Test-Solution development by creating an account on GitHub. You signed out in another tab or window. After your test cases get passed!!!! Happy Learning!!!! I have used MySQL and MS SQL Server for the solutions. invoice_id = i. This repository contains the solutions to the HackerRank SQL (Intermediate) Skills Certification Test. SQL-Business-Expansion and 2. Write a query that gives month, monthly maximum, monthly minimum, mnthly average temperatures for the six months. Merit Rewards. Student Analysis. - adminazhar/hackerrank-SQL-basic-skills-certification-test-solution 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. In that case all columns in orderline have NULL values. Business Expansion. Given a table named . 0. My Solutions to HackerRank Practice Questions on SQL, Python, and Algorithms - 07Agarg/HackerRank_Solutions Sales Data for All Customers and ProductsWrite a query that will return sales details of all customers and products. Hacker rank SQL intermediate solution. This intermediate SQL solution provides insights into product sales across cities, offering a comprehensive overview of customer spending patterns. The query should return all customersmer id, 锘縫roduct id and invoice item id. List all sales along with the corresponding product names. By detailing sales figures per city and identifying customers who spent 25% or less than the average, this solution aids in strategic decision-making for optimizing sales and customer engagement. Basic. productid IS NULL ORDER BY product. Indexes This intermediate SQL solution provides insights into product sales across cities, offering a comprehensive overview of customer spending patterns. id = cu.
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