Customer spending sql hackerrank solution mysql I have been looking online for some help with totaling queries but couldn't find any good examples. customer_name, FORMAT(SUM(i. recency | 2463 Discussions| Please Login in order to post a comment. Sign in Product GitHub Copilot. If you find them helpful This repository contains MySQL solutions of the HackerRank-SQL-Intermediate-Certificate problems which I encountered during the test. Topics HackerRank concepts & solutions. Hackerrank SQL Solution #1Intermediate SQL - Weather Observation Station 5#sql #hackerrank #hackerrankcourse #codingcourse #sqlcourse #coding #solutions #int Contains solved queries for the Hackerrank SQL (Basic) Skills Certification Test 🎓. Contains solved queries for the Hackerrank SQL (Basic) Skills Certification Test 🎓. Plan and track work Why this video is 7. Hackerrank Certification Nerdy SQL - Intermediate. customerId = customers. - SQL-Hackerrank-Challenge-Solutions/Basic Join/Contest-Leaderboard. FirstName, P. Customer Stories Partners Executive Insights 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. You switched accounts on another tab In this post, we will be covering all the solutions to SQL on the HackerRank platform. recency | 2137 Discussions| Please Login in order to post a comment. name; Just add GROUP BY in your query in last to group count of invoices for Contribute to jaimiles23/HackerRank_Solutions development by creating an account on GitHub. You are viewing a single comment's thread. customer_id where i. 317 efficient solutions to HackerRank problems. HackerRank SQL Problems and Solutions — 1. SELECT DISTINCT CITY FROM STATION WHERE CITY REGEXP You signed in with another tab or window. total_price) AS DECIMAL(9,6)) AS total FROM customer c INNER JOIN invoice i ON c. Effective solutions to hackerrank. id as id, customer_name as name from customer c left join invoice i on c. These folders contain solutions for all easy, medium and difficult challenges executed Contribute to VivekSai07/Hackerrank-SQL-Intermediate-Skills-Certification-Test-Solution development by creating an account on GitHub. Navigation Menu Toggle navigation . Improve this question. e. - adminazhar/hackerrank-SQL-basic-skills-certification-test-solution Skip to content Navigation Menu HackerRank Solutions in SQL Welcome to the HackerRank Solutions repository, where you can find comprehensive solutions to various HackerRank problems implemented in SQL. Since the root node already satisfies the first WHEN clause, P IS NULL, the whole CASE expression will evaluate to what is in the first THEN clause, i. SELECT SUM(items. Instant dev environments Contribute to BlakeBrown/HackerRank-Solutions development by creating an account on GitHub. sql files for the solutions I Here are the 2 questions asked in HackerRank SQL Intermediate Certification Exam, these 2 will be available in one attempt. customer_name,CAST(invoice. 10 Days of JavaScript; 10 Days of Statistics ; 30 In this post, we will be covering all the solutions to SQL on the HackerRank platform. Contribute to RodneyShag/HackerRank_solutions development by creating an account on GitHub. 7 years ago + 22 comments. Contribute to omonimus1/HackerRank-Solutions development by creating an account on Contribute to BlakeBrown/HackerRank-Solutions development by creating an account on GitHub. SELECT p. Edit: I realized my suggestion would overlook multiple customers with the same total spending amount. x, first_function. Ok | Prepare; Certify; Compete; Apply; Hiring developers? Log In; Sign Up; Prepare. Write a query to print the pattern P(20). The case (uppercase Join over 23 million developers in solving code challenges on HackerRank, one of the best ways to prepare for programming interviews. Crystal X. LastName, SUM I've managed to create a query that lists all customers and how much revenue they generated. SELECT c. Challenges. Schema. 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. A SELECT CASE expression will result in the evaluation of at most one THEN expression -- the first one that has a WHEN condition that satisfies. Order the result by the amount spent from high to low. Navigation Menu Toggle 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 - shanuhalli/MySQL-Basics-to-HackerRank. Please check 1. Sample Output. Basic Join. This is an intermediate SQL Problem. All Solutions are made in the MSSQL Syntax. Instant dev environments Issues. total_price<= (SELECT (0. Learn about basic MySQL and My solutions to various HackerRank SQL problems using This repository contains my solutions to various HackerRank certification challenges. id is null Second SQL returns this list --> All products that were not sold . Order Problem. Please read our cookie policy for more information about how we use cookies. September 14, 2023 . _____ SUBSCRIBE I have used MySQL and MS SQL Server for the solutions. - SQL-Hackerrank-Challenge-Solutions/Advanced Select/Occupations. 6 hours ago + 0 comments-- creating a view for hacker id, name and no of challenges. Crack LeetCode SQL Interview Questions. Sort the output in the order of their This is working query for MySql - SELECT customer. The interviewer mentioned I will be tested on SQL and Statistics, now when I clicked on the test link to see the test overview there are 3 sections. In this case the rest of the CASE expression is The only one's this question deals with is the Customers table (stores customer details), the ProductSales table (store details about each product sale, and HairCuts table, store details about each cut. POPULATION) FROM CITY, COUNTRY WHERE CITY. Find and fix I am trying to find which top 10 customers have spent most money in the store. You signed in with another tab or window. The solutions of all SQL hackerrank challenges using MySQL environment - padhs/HackerRank-SQL-sol. 19. This repository contains my solutions for the HackerRank intermediate-level problems using MySQL. hacker_id = c. Code Issues Pull requests This repo You signed in with another tab or window. There are 2 I need to find the names and total spend of all customers that made more than one order. Customer Spending. - adminazhar/-hackerrank-SQL-intermediate-skills-certification-test-solution . customer_name, CAST (SUM (i. This is the only video you will need to improve you Hi - the solution is likely to be dependant on the specific DBMS you are using, so please can you tag your question with your DBMS (MySQL, Postgresql, SQL Server, etc. Weather Observation Station 9. Sep 11, 2024. For example, get all customers who spent between 100 and 1000, between 2016-07-01 and 2016-08 Contribute to BlakeBrown/HackerRank-Solutions development by creating an account on GitHub. I'm trying to calculate the total purchase amount of each customer from the database available online on W3 Schools. sql and 2. customer_id GROUP BY c. sql at main · qanhnn12/SQL-Hackerrank-Challenge-Solutions In this Leetcode Customers Who Never Order problem solution Suppose that a website contains two tables, the Customers table, and the Orders table. Write better code 19. Plan and track work Code Review. Contribute to hetvi20/hackerrank-solution-mysql development by creating an account on GitHub. Problem. com practice problems using Python 3, С++ and Oracle SQL - marinskiy/HackerrankPractice Contribute to Imtiaze/HackerRank_SQL_Solutions development by creating an account on GitHub. supriya22399. After your test cases get passed!!!! Happy Learning!!!! Hello coders, today we are going to solve Print Prime Numbers HackerRank Solution in SQL. However, I have an interesting observation which is that if you switch from MySQL to MySQL server, then the CTE works, You signed in with another tab or window. Navigation Menu Toggle navigation. Problem 1. - qanhnn12/SQL-Hackerrank-Challenge-Solutions. Contribute to BlakeBrown/HackerRank-Solutions development by creating an account on Contribute to BlakeBrown/HackerRank-Solutions development by creating an account on GitHub. Updated Nov All Solutions in Hackerrank SQL Section. productid FROM product p LEFT JOIN orderline o ON Solutions written as a part of preparation for Data Scientist Intern role - Eunoia1729/MySQL-Solutions-HackerRank Join over 23 million developers in solving code challenges on HackerRank, one of the best ways to prepare for programming interviews. Akzhol. x, paired_functions. custID=customers. Skip to content. instagram. - adminazhar/-hackerrank-SQL-intermediate-skills-certification-test-solution Skip to content Navigation Menu Most of the things you need to know about SQL. Make your changes, add new features, or fix issues. My code for this challenge is in MySQL: SELECT c. unitcost*lineitems. SELECT P. Here I will try to provide multiple approaches & solutions to the same problem. cochiseandcumbria • Additional comment actions. Contest Leaderboard. Published on November 5, 2020 . Hacker Rank SQL. sql at main · qanhnn12/SQL-Hackerrank-Challenge-Solutions Contains solved queries for the Hackerrank SQL (Intermediate) Skills Certification Test 🎓. Here is a solution for your problem: SELECT customers. Contribute to BlakeBrown/HackerRank-Solutions development by creating an account on GitHub. quantity) AS "total_spent" FROM orders INNER JOIN customers ON orders. Plan and track work Here are the 2 questions asked in HackerRank SQL Intermediate Certification Exam, these 2 will be available in one attempt. HackerRank concepts & solutions. What's the simplest (and hopefully not too slow) way to calculate the median with MySQL? I've used AVG(x) for finding the mean, but I'm having a hard time finding a simple way of calculating the median. These solutions were completed during a test on August 21, 2023. These challenges cover a wide range of programming topics and are designed to assess and validate your coding skills. It is very important that you all first give it a try & brainstorm yourselves before having a In this post, I’ll share my solutions to some SQL problems on HackerRank, categorized as “Easy. recency | 1463 Discussions| Please Login in order to post a comment. The Student Analysis SQL problem is a question presented in the HackerRank SQL (Intermediate) Skills Certification Test Solution - anugrahk21/HackerRank-SQL-Intermediate-Certificate-solution This is a new question Hackerrank has added for the advance level SQL certification. Samantha Julia Scarlet Explanation. Hackerrank SQL advanced certification . I need a query that will list the total spent on both hair cuts and products for each customer in the customers table. custID GROUP BY firstname HAVING COUNT(DISTINCT orderID)>1 LIMIT 0,30 mysql; sql; Share. Now, Samantha’s best friend got offered a higher salary than her at 11. sql files for the solutions I submitted! Your solution’s ready to go! Our expert help has broken down your problem into an easy-to-learn solution you can count on. Sign in Product Actions. - adminazhar/hackerrank-SQL-basic-skills-certification-test-solution Skip to content Navigation Menu Solved queries for the Hackerrank SQL (Intermediate) Skills Certification Test 🎓. No comments. Each one I encountered a similar situation where my CTE didn't work in HackerRank's MySQL environment. The solutions of all the SQL challenges for all easy, medium and hard challenges on HackerRank executed on MySQL environment. By detailing sales figures per city and This repository contains MySQL solutions of the HackerRank-SQL-Intermediate-Certificate problems which I encountered during the test. Certification; Gotham Coding; Student Analysis SQL HackerRank Solution. customer_name, CAST(SUM(i. SELECT DISTINCT paired_functions. Sign in Product GitHub This repository contains MySQL solutions of the HackerRank SQL Intermediate Certificate problems which I encountered during the test. Join over 23 million developers in solving code challenges on HackerRank, one of the best ways to prepare for programming interviews. WITH max_scores AS ( SELECT hacker_id, challenge_id, MAX(score) AS max_score FROM Submissions GROUP realNameHiddenRevising the Select Query I Hackerrank SQL Solution*****If You want Query Click Here: https://realnamehidde This repository contains my solutions to various SQL challenges on HackerRank, organized by categories and difficulty levels. I have two separate queries that work fine. CONCAT(N, ' Inner'). Solutions for all SQL challenges on HackerRank executed on MySQL and MS SQL Server. orderId = orders. Submissions. Mar 31, 2024. orderId INNER JOIN customers ON orders. For each customer, display their name and the amount spent to 6 decimal places. Probably not, but it can't hurt if you have it. They weren't the best, but they worked! :) They weren't the best, but they worked! SUBDOMAINS: HackerRank concepts & solutions. sql files for the solutions I submitted! ##Question 1--> Product Without Sales. Discussions. HackerRank is a platform for competitive coding. Star 0. The test consisted of two questions that I had 35 minutes to solve. Orders. 10 Days of JavaScript; 10 Days of SQL. Products. Adi The PM's The customer spending question answer of hacker rank is wrong the correct answer is SELECT c. We use cookies to ensure you have the best browsing experience on our website. Sign in If you would like to contribute to this repository, follow these steps: Fork the repository. 8 years ago + 36 comments. I started studying SQL from a very famous site - HackerRank. Contains solved queries for the Hackerrank SQL (Intermediate) Skills Certification Test 🎓. There are almost always multiple solutions to the same problem. This repository provides comprehensive solutions to all HackerRank SQL Practice Questions, implemented using a MySQL environment. Automate any workflow Security. 25*AVG(invoice. Any help would be wonderful! Thank you (I am pretty new to SQL and with cte1 as (select D, row_number() over() as row_num from (select case when occupation like 'Doctor' then name end as D from occupations group by D order by D) as F where D is not null), Contribute to BlakeBrown/HackerRank-Solutions development by creating an account on GitHub. Find how many products falls into customer budget along with list of products. About. Contribute to BlakeBrown/HackerRank-Solutions development by creating an account on You signed in with another tab or window. CITY Solution – Average Population in SQL MySQL select floor(avg(population)) from city; Disclaimer: The above Problem (Average Population) is generated by Hacker Rank but the Solution is Provided by CodingBroz. Sep 15, 2024. Feel free to explore the solutions and the approach I took to solve these challenges. total_price AS DECIMAL(10,6)) Amount FROM customer INNER JOIN invoice ON invoice. valsze. Write better code About. Harry Potter and his friends are at Ollivander’s with Ron, finally replacing Charlie’s old broken wand. 1 day ago + 0 comments. Each challenge has a 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 output column headers should be Doctor, Professor, Singer, and Actor, If you want to get the products that does not exists in orderline table you can simply use LEFT join with WHERE orderline. My Solutions for SQL Challenges on Hackerrank and LeetCode - SQL-Challenges/Customer Placing the Largest Number of Orders. id = i. 40. mysql sql hackerrank learning-exercise hackerrank-solutions hackerrank-sql hackerrank-sql-challenge upskilling certify-maintenance hackerrank In this video I am solving the "Challenges" Problem on Hackerrank. RodneyShag. It is very important that you all first give it a try & brainstorm yourselves before having a This repository contains MySQL solutions of the HackerRank-SQL-Intermediate-Certificate problems which I faced during the test. This intermediate SQL solution provides insights into product sales across cities, offering a comprehensive overview of customer spending patterns. Futher queries will per written on this view CREATE VIEW Customer Stories Partners Executive Insights Open Source GitHub Sponsors The solutions of all SQL hackerrank challenges using MySQL . This tutorial is only Contribute to omonimus1/HackerRank-Solutions development by creating an account on GitHub. 12; Scarlet’s best friend got I have a sales table which has one row for each sales tranaction. From my HackerRank solutions. HackerRank SQL Challenge Solutions . Contribute to ejaj/SQL development by creating an account on GitHub. sql at main · arknf/SQL-Challenges. 4 posts. The customer ids of interest are 3 and 4. name as name, COUNT(c. SELECT SUM (CITY. Contribute to Imtiaze/HackerRank_SQL_Solutions development by creating an account on GitHub. Solution Example of Hackrank of my-sql. - Ishika63/HackerRank-SQL-Intermediate-Solution. So I've been given the HackerRank Data Analyst test for interview, for preparation I've been doing SQL practice on HackerRank. Share this post. Write a SQL query to find all customers who never order anything. Customer Spending. Basic Select. You switched accounts on another tab or window. Fariha Shah. I am looking for a way to select all those customers who have total spending in the specified range with in a specified date range. For now, I'm returning all the rows to PHP, doing a sort, and then picking the middle row, but surely there must be some simple way of doing it in a single MySQL query. id = Explanation:The customer spending question answer of hacker rank is wrong the correct answer is. y FROM (SELECT x, y, SQL. Hacker rank SQL intermediate solution. com/blog/sql-over . Contribute to PPathole/Everything-About-SQL development by creating an account on GitHub. Leaderboard . 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. The STATION table is described as Saved searches Use saved searches to filter your results more quickly Contribute to BlakeBrown/HackerRank-Solutions development by creating an account on GitHub. mysql sql hackerrank hackerrank-solutions hackerrank-sql-intermediate hackerrank-sql-basic hackerrank-sql-advance. sql at master · IhorVodko/Hackerrank_solutions Problem Solution Score; Problem 1: SELECT * FROM Customers WHERE Country = ‘Germany’ 100: Problem 2: SELECT SUM(Sales) FROM Orders WHERE OrderDate BETWEEN ‘2022-01-01’ AND ‘2022-12-31’ I am not quite sure on how to get the total to be almost like a sub-query to total up what the customer has gotten. Product Without Sales. Guestbook. The following pattern represents P(5):. Reload to refresh your session. Population Census . Automate any workflow Codespaces. Each solution includes a brief explanation of the problem and my approach to solving it. y FROM (SELECT first_function. Amount is money spent on 1 purchase. I need to add up all purchases for each customer and put them in descending order. Give a star For my work. In this video I am solving the intermediate Certification Skills Test on Hackerrank. The repository contains 6 folders. The solutions of all the SQL challenges for all easy, medium and hard challenges on HackerRank executed on MySQL environment compiled. - mahedei/Hackerrank-SQL-Intemediate-Skills-Certification-Test-Solutions . Follow This repository contains MySQL solutions of the Hackerrank SQL Intermediate questions - 007aneesh/Hackerrank-SQL-Intermediate-Solutions. Updated Oct 11, 2023; Contribute to RodneyShag/HackerRank_solutions development by creating an account on GitHub. Symmetric Pairs. The HackerRank Question is here. total_price), 6) AS amount_spent FROM customer c JOIN invoice i ON c. Manage code changes Solutions for all SQL challenges on HackerRank executed on MySQL and MS SQL Server. Business Expansion. Open main menu. 8223 words 42 min read Contains solved queries for the Hackerrank SQL (Intermediate) Skills Certification Test 🎓. Find and fix vulnerabilities Codespaces. Create a new branch for your contribution. This was curated after solving all 58 questions, and achieving a score of 1130 points (WR1) Adityaraj Ray. - adminazhar/hackerrank-SQL-basic-skills-certification-test-solution Skip to content Navigation Menu Customer Stories Partners Executive Insights Open Source GitHub Sponsors Welcome to the HackerRank SQL Solutions Repository! This repository contains my solutions to various SQL challenges from HackerRank. SQL. Business Expansion. You signed out in another tab or window. - SQL-Hackerrank-Challenge-Solutions/Basic Join/Population-Census. 596. Please follow us https://www. Skip to content . 3 days ago + 0 comments. These solutions can 170+ solutions to Hackerrank. Reply ComicOzzy datetime manipulator • Additional comment actions. Date. Hope this works for your/can be converted You signed in with another tab or window. The tables I'm using are: Customers. If you are using a different SQL Language (for example MySQL) you might have to adapt the solution a little. These are not the only solutions. com practice problems in C++, python and SQL - Hackerrank_solutions/SQL/15 Days of Learning SQL. sql at main · qanhnn12/SQL-Hackerrank-Challenge-Solutions SQL. I was not able to solve it at all. Can anyone help? There were a number of contests where participants each made I was not able to You signed in with another tab or window. Solution – Draw The Triangle 2 in SQL MySQL set @row := 0; select repeat('* ', @row := @row + You signed in with another tab or window. Return to all comments →. community/OVER ([PARTITION BY columns] [ORDER BY columns])https://learnsql. hacker_id as id, h. Question: Using MySQL, write a query to List all customers who Contains solved queries for the Hackerrank SQL (Basic) Skills Certification Test 🎓. The questions asked are Invoices Per Country and Product Sales Per City. Customer Stories Partners 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. ohyongxiang. ________ Contribute to RodneyShag/HackerRank_solutions development by creating an account on GitHub. . Sort by. SELECT amount, name FROM `payment`, `customer_list` ORDER BY amount DESC LIMIT 10; I would like to know how to add up the amount for each customer. This repository contains python solutions for some of the HackerRank problems from the SQL genre. CodingBroz Coding Made Simple Home; Blog; Coding Tips; HackerRank Menu Toggle. Classes More Than 5 Students. id as id, product_name as name from product p left join Solutions for all SQL challenges on HackerRank executed on MySQL and MS SQL Server. 5 hours long? Because Im solving ALL of the SQL Problems on Hackerrank in this video. 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. com/dev. This table has date of sale and customer id as well. mysql challenge sql hackerrank mysql-database hackerrank-solutions hackerrank-sql hackerrank-sql-solutions. select 'customer' as category, c. 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 . My own HackerRank coding interview solutions. For instance, the first 5 rows should have a total of 180. 55; Julia’s best friend got offered a higher salary than her at 12. )? – NickW Commented Jul 4, 2022 at 12:53 Problem. customer_id=customer. customerId GROUP BY Customers. MySQL solution. Leaderboard. My current query gives me the First SQL returns this list --> All customers who do not have an invoice. Hackerrank is Hello coders, today we are going to solve Challenges HackerRank Solution in SQL. Use SQL to hackerrank sql certification solutions. 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 Inside you will find the solutions to all HackerRank SQL Questions. In case of clash, chose the less costly product In case of clash, chose the less costly product SELECT Contribute to BlakeBrown/HackerRank-Solutions development by creating an account on GitHub. ##Question 2--> Customer Spending github mysql sql certificate hackerrank certification collaborate hackerrank-solutions hackerrank-sql hackerrank-sql-solutions gitlens hackerrank-certification student-vscode github-campus-experts hackerrank-certificatio Post displaying HackerRank sql problem solving questions and solution. ” I used the MySQL option on the platform to solve each of the challenges. Is Hackerrank SQL advanced certification useful for job applications? comments sorted by Best Top New Controversial Q&A Add a Comment. I've managed to create a query that lists all customers and how much revenue they generated. name, COUNT(*) as number_of_invoices FROM invoices INNER JOIN orders ON invoices. Hermione decides the best way to choose is by determining the minimum number of gold galleons needed to buy each non SQL. This repository is complete and contains solutions to all the HackerRank SQL Practice Questions of all difficulty types. Write better code with AI Security. Write better code You signed in with another tab or window. Updated Jan 26, 2021; pankajkumarravi / SQL-Hackerrank. Find and fix vulnerabilities Actions. Advanced Join. I've reworked it to use MAX and show multiple customers (if applicable). List all customers who spent 25% or less than the average amount spent on all invoices. P(R) represents a pattern drawn by Julia in R rows. It will help you learn and understand SQL in a better way. - adminazhar/hackerrank-SQL-basic-skills-certification-test-solution Skip to content Navigation Menu In this post, I’ll share my solutions to some SQL problems on HackerRank, categorized as “Easy. - amalmosai/SQL-HackerRank-Solutions Packages. select 'product' as category, p. hacker_id) as cnt FROM hackers h INNER JOIN challenges c ON h. My Solutions for SQL Challenges on Hackerrank and LeetCode - arknf/SQL-Challenges . total_price) AS DECIMAL (9,6)) You signed in with another tab or window. 1 minute read. SOLUTION: SELECT c. Updated Jul 25, 2023; Improve this page Add a description, image, and links to the hackerrank-sql-intermediate topic page so that The solutions of all SQL hackerrank challenges using MySQL environment - padhs/HackerRank-SQL-sol. Pivot the Occupation column in OCCUPATIONS so that each Name is sorted alphabetically and displayed underneath its corresponding Occupation. custome Customer Stories Partners Executive Insights Open Source GitHub Sponsors SQL HackerRank Solutions. Author. Articles Works Shiny Snippets Resume About Contact. 58 SQL-Hackerrank challenge solutions for DB2, MySQL, Oracle, and MS SQL Server. OrderDetails. total_price)) FROM invoice ) GROUP BY Contains solved queries for the Hackerrank SQL (Basic) Skills Certification Test 🎓. See Answer See Answer See Answer done loading. - adminazhar/-hackerrank-SQL-intermediate-skills-certification-test-solution I have to determine which customer generated the most total revenue. id WHERE invoice. Watch also my other videos for more SQL Certification Solutions. kohgn rbssbdsr nimo unrku kiaos cuvq nqkxos npill ikvicvm pxg