Customer spending sql hackerrank solution mysql. You signed out in another tab or window.

Customer spending sql hackerrank solution mysql cochiseandcumbria • Additional comment actions. Improve this question. 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 are not the only solutions. customer_name, CAST(SUM(i. recency | 2463 Discussions| Please Login in order to post a comment. It will help you learn and understand SQL in a better way. 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. RodneyShag. These challenges cover a wide range of programming topics and are designed to assess and validate your coding skills. My code for this challenge is in MySQL: SELECT c. customer_id where i. Hacker Rank SQL. total_price AS DECIMAL(10,6)) Amount FROM customer INNER JOIN invoice ON invoice. Share this post. Sort by. custID=customers. CodingBroz Coding Made Simple Home; Blog; Coding Tips; HackerRank Menu Toggle. Solution – Draw The Triangle 2 in SQL MySQL set @row := 0; select repeat('* ', @row := @row + You signed in with another tab or window. 10 Days of JavaScript; 10 Days of SQL. Learn about basic MySQL and My solutions to various HackerRank SQL problems using This repository contains my solutions to various HackerRank certification challenges. Feel free to explore the solutions and the approach I took to solve these challenges. Schema. 40. Adi The PM's The customer spending question answer of hacker rank is wrong the correct answer is SELECT c. All Solutions are made in the MSSQL Syntax. 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. . 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. total_price<= (SELECT (0. name, COUNT(*) as number_of_invoices FROM invoices INNER JOIN orders ON invoices. Solution Example of Hackrank of my-sql. 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. 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 🎓. Leaderboard . The HackerRank Question is here. Each one I encountered a similar situation where my CTE didn't work in HackerRank's MySQL environment. Create a new branch for your contribution. 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. Customer Spending. This is an intermediate SQL Problem. These solutions were completed during a test on August 21, 2023. I've reworked it to use MAX and show multiple customers (if applicable). name as name, COUNT(c. 4 posts. Follow This repository contains MySQL solutions of the Hackerrank SQL Intermediate questions - 007aneesh/Hackerrank-SQL-Intermediate-Solutions. So I've been given the HackerRank Data Analyst test for interview, for preparation I've been doing SQL practice on HackerRank. September 14, 2023 . Author. 25*AVG(invoice. Problem 1. ##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. 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. Contribute to omonimus1/HackerRank-Solutions development by creating an account on Contribute to BlakeBrown/HackerRank-Solutions development by creating an account on GitHub. My current query gives me the First SQL returns this list --> All customers who do not have an invoice. Make your changes, add new features, or fix issues. - adminazhar/-hackerrank-SQL-intermediate-skills-certification-test-solution . SELECT c. sql at main · arknf/SQL-Challenges. Leaderboard. - Ishika63/HackerRank-SQL-Intermediate-Solution. SELECT DISTINCT paired_functions. This repository is complete and contains solutions to all the HackerRank SQL Practice Questions of all difficulty types. There are almost always multiple solutions to the same problem. Automate any workflow Security. Hackerrank SQL advanced certification . Sep 11, 2024. Write better code About. hacker_id = c. orderId INNER JOIN customers ON orders. The questions asked are Invoices Per Country and Product Sales Per City. My Solutions for SQL Challenges on Hackerrank and LeetCode - arknf/SQL-Challenges . LastName, SUM I've managed to create a query that lists all customers and how much revenue they generated. - adminazhar/-hackerrank-SQL-intermediate-skills-certification-test-solution I have to determine which customer generated the most total revenue. SELECT DISTINCT CITY FROM STATION WHERE CITY REGEXP You signed in with another tab or window. 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. )? – NickW Commented Jul 4, 2022 at 12:53 Problem. Reload to refresh your session. If you find them helpful This repository contains MySQL solutions of the HackerRank-SQL-Intermediate-Certificate problems which I encountered during the test. MySQL solution. I have been looking online for some help with totaling queries but couldn't find any good examples. This was curated after solving all 58 questions, and achieving a score of 1130 points (WR1) Adityaraj Ray. Skip to content. 5 hours long? Because Im solving ALL of the SQL Problems on Hackerrank in this video. I'm trying to calculate the total purchase amount of each customer from the database available online on W3 Schools. You switched accounts on another tab or window. Product Without Sales. 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. Order Problem. The case (uppercase Join over 23 million developers in solving code challenges on HackerRank, one of the best ways to prepare for programming interviews. Basic Select. total_price), 6) AS amount_spent FROM customer c JOIN invoice i ON c. Contribute to BlakeBrown/HackerRank-Solutions development by creating an account on GitHub. Pivot the Occupation column in OCCUPATIONS so that each Name is sorted alphabetically and displayed underneath its corresponding Occupation. Write better code with AI Security. sql at main · qanhnn12/SQL-Hackerrank-Challenge-Solutions SQL. Business Expansion. total_price)) FROM invoice ) GROUP BY Contains solved queries for the Hackerrank SQL (Basic) Skills Certification Test 🎓. community/OVER ([PARTITION BY columns] [ORDER BY columns])https://learnsql. Contains solved queries for the Hackerrank SQL (Basic) Skills Certification Test 🎓. - 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. Plan and track work Here are the 2 questions asked in HackerRank SQL Intermediate Certification Exam, these 2 will be available in one attempt. Akzhol. This intermediate SQL solution provides insights into product sales across cities, offering a comprehensive overview of customer spending patterns. - amalmosai/SQL-HackerRank-Solutions Packages. Write a query to print the pattern P(20). customer_name, CAST (SUM (i. Amount is money spent on 1 purchase. CONCAT(N, ' Inner'). com/blog/sql-over . customerId = customers. Effective solutions to hackerrank. Mar 31, 2024. Plan and track work Code Review. custID GROUP BY firstname HAVING COUNT(DISTINCT orderID)>1 LIMIT 0,30 mysql; sql; Share. Crack LeetCode SQL Interview Questions. - mahedei/Hackerrank-SQL-Intemediate-Skills-Certification-Test-Solutions . Symmetric Pairs. 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. Classes More Than 5 Students. mysql challenge sql hackerrank mysql-database hackerrank-solutions hackerrank-sql hackerrank-sql-solutions. Contest Leaderboard. Products. quantity) AS "total_spent" FROM orders INNER JOIN customers ON orders. recency | 2137 Discussions| Please Login in order to post a comment. 19. Sample Output. You are viewing a single comment's thread. sql at main · qanhnn12/SQL-Hackerrank-Challenge-Solutions Contains solved queries for the Hackerrank SQL (Intermediate) Skills Certification Test 🎓. Use SQL to hackerrank sql certification solutions. hacker_id as id, h. _____ SUBSCRIBE I have used MySQL and MS SQL Server for the solutions. SQL. Please check 1. e. Weather Observation Station 9. I need to add up all purchases for each customer and put them in descending order. 317 efficient solutions to HackerRank problems. 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. You signed out in another tab or window. sql files for the solutions I submitted! ##Question 1--> Product Without Sales. Question: Using MySQL, write a query to List all customers who Contains solved queries for the Hackerrank SQL (Basic) Skills Certification Test 🎓. 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. Topics HackerRank concepts & solutions. Skip to content . My own HackerRank coding interview solutions. Find and fix I am trying to find which top 10 customers have spent most money in the store. 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. For instance, the first 5 rows should have a total of 180. orderId = orders. Sign in Product Actions. These solutions can 170+ solutions to Hackerrank. Advanced Join. Star 0. hacker_id) as cnt FROM hackers h INNER JOIN challenges c ON h. x, first_function. Find and fix vulnerabilities Actions. After your test cases get passed!!!! Happy Learning!!!! Hello coders, today we are going to solve Print Prime Numbers HackerRank Solution in SQL. 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. This table has date of sale and customer id as well. sql and 2. The solutions of all SQL hackerrank challenges using MySQL environment - padhs/HackerRank-SQL-sol. Updated Jan 26, 2021; pankajkumarravi / SQL-Hackerrank. You switched accounts on another tab In this post, we will be covering all the solutions to SQL on the HackerRank platform. Articles Works Shiny Snippets Resume About Contact. - qanhnn12/SQL-Hackerrank-Challenge-Solutions. 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. See Answer See Answer See Answer done loading. ________ Contribute to RodneyShag/HackerRank_solutions development by creating an account on GitHub. 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. If you are using a different SQL Language (for example MySQL) you might have to adapt the solution a little. - 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. Navigation Menu Toggle navigation. The customer ids of interest are 3 and 4. Population Census . Now, Samantha’s best friend got offered a higher salary than her at 11. recency | 1463 Discussions| Please Login in order to post a comment. I was not able to solve it at all. Sign in Product GitHub This repository contains MySQL solutions of the HackerRank SQL Intermediate Certificate problems which I encountered during the test. My Solutions for SQL Challenges on Hackerrank and LeetCode - SQL-Challenges/Customer Placing the Largest Number of Orders. ohyongxiang. total_price) AS DECIMAL(9,6)) AS total FROM customer c INNER JOIN invoice i ON c. Solutions for all SQL challenges on HackerRank executed on MySQL and MS SQL Server. - adminazhar/-hackerrank-SQL-intermediate-skills-certification-test-solution Skip to content Navigation Menu Most of the things you need to know about SQL. 58 SQL-Hackerrank challenge solutions for DB2, MySQL, Oracle, and MS SQL Server. Business Expansion. HackerRank concepts & solutions. Sep 15, 2024. Contribute to Imtiaze/HackerRank_SQL_Solutions development by creating an account on GitHub. id = i. customer_name, FORMAT(SUM(i. 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. Contribute to ejaj/SQL development by creating an account on GitHub. 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. This repository contains python solutions for some of the HackerRank problems from the SQL genre. 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. Hackerrank Certification Nerdy SQL - Intermediate. 12; Scarlet’s best friend got I have a sales table which has one row for each sales tranaction. SELECT p. id WHERE invoice. 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. x, paired_functions. 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. Discussions. select 'product' as category, p. unitcost*lineitems. supriya22399. Edit: I realized my suggestion would overlook multiple customers with the same total spending amount. 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. Navigation Menu Toggle navigation . Problem. Basic Join. customer_name,CAST(invoice. POPULATION) FROM CITY, COUNTRY WHERE CITY. Contribute to hetvi20/hackerrank-solution-mysql development by creating an account on GitHub. SELECT SUM (CITY. 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. 6 hours ago + 0 comments-- creating a view for hacker id, name and no of challenges. OrderDetails. Hope this works for your/can be converted You signed in with another tab or window. No comments. 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. 3 days ago + 0 comments. Here I will try to provide multiple approaches & solutions to the same problem. The tables I'm using are: Customers. Contribute to BlakeBrown/HackerRank-Solutions development by creating an account on You signed in with another tab or window. - SQL-Hackerrank-Challenge-Solutions/Advanced Select/Occupations. Automate any workflow Codespaces. Updated Oct 11, 2023; Contribute to RodneyShag/HackerRank_solutions development by creating an account on GitHub. Order the result by the amount spent from high to low. instagram. 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. The solutions of all the SQL challenges for all easy, medium and hard challenges on HackerRank executed on MySQL environment compiled. com practice problems in C++, python and SQL - Hackerrank_solutions/SQL/15 Days of Learning SQL. Updated Nov All Solutions in Hackerrank SQL Section. Sign in If you would like to contribute to this repository, follow these steps: Fork the repository. total_price) AS DECIMAL (9,6)) You signed in with another tab or window. In this video I am solving the intermediate Certification Skills Test on Hackerrank. Ok | Prepare; Certify; Compete; Apply; Hiring developers? Log In; Sign Up; Prepare. Plan and track work Why this video is 7. Contribute to RodneyShag/HackerRank_solutions development by creating an account on GitHub. I've managed to create a query that lists all customers and how much revenue they generated. com/dev. 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. From my HackerRank solutions. The solutions of all the SQL challenges for all easy, medium and hard challenges on HackerRank executed on MySQL environment. 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. 1 minute read. Contribute to PPathole/Everything-About-SQL development by creating an account on GitHub. 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. customer_id GROUP BY c. 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. - adminazhar/hackerrank-SQL-basic-skills-certification-test-solution Skip to content Navigation Menu Solved queries for the Hackerrank SQL (Intermediate) Skills Certification Test 🎓. - SQL-Hackerrank-Challenge-Solutions/Basic Join/Population-Census. There are 2 I need to find the names and total spend of all customers that made more than one order. Instant dev environments Contribute to BlakeBrown/HackerRank-Solutions development by creating an account on GitHub. Challenges. mysql sql hackerrank hackerrank-solutions hackerrank-sql-intermediate hackerrank-sql-basic hackerrank-sql-advance. Orders. 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. Published on November 5, 2020 . Hacker rank SQL intermediate solution. 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. Certification; Gotham Coding; Student Analysis SQL HackerRank Solution. Is Hackerrank SQL advanced certification useful for job applications? comments sorted by Best Top New Controversial Q&A Add a Comment. The repository contains 6 folders. Crystal X. This repository provides comprehensive solutions to all HackerRank SQL Practice Questions, implemented using a MySQL environment. Find and fix vulnerabilities Codespaces. Here is a solution for your problem: SELECT customers. Hermione decides the best way to choose is by determining the minimum number of gold galleons needed to buy each non SQL. HackerRank SQL Problems and Solutions — 1. 596. Customer Spending. Guestbook. SOLUTION: SELECT c. The test consisted of two questions that I had 35 minutes to solve. 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 . Contains solved queries for the Hackerrank SQL (Intermediate) Skills Certification Test 🎓. Return to all comments →. I have two separate queries that work fine. They weren't the best, but they worked! :) They weren't the best, but they worked! SUBDOMAINS: HackerRank concepts & solutions. The following pattern represents P(5):. ” I used the MySQL option on the platform to solve each of the challenges. Write better code You signed in with another tab or window. About. Submissions. Fariha Shah. - SQL-Hackerrank-Challenge-Solutions/Basic Join/Contest-Leaderboard. SELECT P. y FROM (SELECT first_function. y FROM (SELECT x, y, SQL. 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. 7 years ago + 22 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. custome Customer Stories Partners Executive Insights Open Source GitHub Sponsors SQL HackerRank Solutions. 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. HackerRank is a platform for competitive coding. Write better code 19. Samantha Julia Scarlet Explanation. HackerRank SQL Challenge Solutions . id as id, customer_name as name from customer c left join invoice i on c. Hackerrank is Hello coders, today we are going to solve Challenges HackerRank Solution in SQL. Reply ComicOzzy datetime manipulator • Additional comment actions. Watch also my other videos for more SQL Certification Solutions. Probably not, but it can't hurt if you have it. Please follow us https://www. valsze. Instant dev environments Issues. Date. select 'customer' as category, c. 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. Please read our cookie policy for more information about how we use cookies. We use cookies to ensure you have the best browsing experience on our website. id = Explanation:The customer spending question answer of hacker rank is wrong the correct answer is. customer_id=customer. 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 . Open main menu. customerId GROUP BY Customers. I need a query that will list the total spent on both hair cuts and products for each customer in the customers table. 8223 words 42 min read Contains solved queries for the Hackerrank SQL (Intermediate) Skills Certification Test 🎓. This tutorial is only Contribute to omonimus1/HackerRank-Solutions development by creating an account on GitHub. You signed in with another tab or window. Sign in Product GitHub Copilot. FirstName, P. Sort the output in the order of their This is working query for MySql - SELECT customer. Harry Potter and his friends are at Ollivander’s with Ron, finally replacing Charlie’s old broken wand. Give a star For my work. 55; Julia’s best friend got offered a higher salary than her at 12. 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. 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. I started studying SQL from a very famous site - HackerRank. 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. Manage code changes Solutions for all SQL challenges on HackerRank executed on MySQL and MS SQL Server. Contribute to BlakeBrown/HackerRank-Solutions development by creating an account on Contribute to BlakeBrown/HackerRank-Solutions development by creating an account on GitHub. Write a SQL query to find all customers who never order anything. 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. Join over 23 million developers in solving code challenges on HackerRank, one of the best ways to prepare for programming interviews. 8 years ago + 36 comments. Find how many products falls into customer budget along with list of products. Code Issues Pull requests This repo You signed in with another tab or window. 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. - 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. 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. 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. SELECT SUM(items. For each customer, display their name and the amount spent to 6 decimal places. List all customers who spent 25% or less than the average amount spent on all invoices. This repository contains my solutions for the HackerRank intermediate-level problems using MySQL. P(R) represents a pattern drawn by Julia in R rows. Each solution includes a brief explanation of the problem and my approach to solving it. 1 day ago + 0 comments. id is null Second SQL returns this list --> All products that were not sold . hlydoccn ycmbg pqme uzcpsjgf cgunwgwg seczl jcy odgmpva ysizhiio hpnauwq