Products without sales sql hackerrank solution oracle. 4% of all SQL online submissions for this problem.

Products without sales sql hackerrank solution oracle Product GitHub Copilot. Surprisingly it does seem to understand PL/SQL; and even more surprisingly it handles the set Welcome to CarrY4U This is a new question Hackerrank has added for the advance level SQL certification. PL/SQL is an extension of SQL language that combines the data manipulation power of SQL with the processing power of procedural language to create super-powerful SQL queries. This was curated after solving all 58 questions, and achieving a score of 1130 points (WR1) Subscribe Sign in. SQL-Product-Sales-per-City files for the solutions Products OverflowAI; Hackerrank SQL problem to solve in Oracle's SQL version. Solutions for all SQL challenges on HackerRank executed on MySQL and MS SQL Server. sql. txt at main · mahedei/Hackerrank-SQL-Intemediate-Skills-Certification-Test-Solutions Code your solution in our custom editor or code in your own environment and upload your solution as a file. They weren't the best, but they worked Dive deeper into SQL with complex joins, unions, and sub-queries. A reviewer rates the two challenges, awarding points on a scale from 1 to 100 for three categories: problem clarity, originality, and difficulty. You can easily perform UNION with both the SQLs. Copy path. Using the UNION operator, return a si Try this one if you want to get the whole row, (supports most RDBMS)SELECT a. Write better code with AI Code review Easy SQL (Intermediate) Max Score: 30 Success Rate: 94. We use cookies to ensure you have the best browsing experience on our website. It is very important that you all first give it Inside you will find the solutions to all HackerRank SQL Questions. SQL : List Customer And Product Without SaleTo Access My Live Chat Page, On Google, Search for "hows tech developer connect"I have a hidden feature that I pr List Customer And Product Without Sale. category AND a. ProID = od. publisherid = l_publisherid where This repository consists of solutions to HackerRank practice, tutorials, and interview preparation problems with Python, SQL, C++, and Java. Tab/Se Youlube Maps 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 - Hackerrank Intermediate SQL certification solutions with basic SQL quarries, Sub quarries and Aggregation functions. group by p. Binary Tree Nodes. product_name FROM product WHERE product. Author. Contains solved queries for the Hackerrank SQL (Intermediate) Skills Certification Test 🎓. Retrieve each product bought by a customer MySQL. PRODUCT_ID NOT IN (SELECT PRODUCT_ID FROM SALES); And, this is not equivalent to the third. Here is the certificate which i got. blogspot. Instant dev environments GitHub Copilot. Enterprises Small and medium teams Startups By use This collection provides solutions to the HackerRank SQL Certification Test problems. Grades contains the following data:. Navigation Menu Toggle navigation Why this video is 7. Medium SQL (Intermediate) Max Score: 30 Success Rate: 97. Join over 23 million developers in solving code challenges on HackerRank, one of the best ways to prepare for programming interviews. 0 | Permalink. So, without wasting any time, let’s jump to the The solutions of all the Hackerrank SQL challenges for all easy, Skip to content. Navigation Menu Toggle navigation. If you’re a data scientist or software engineer on the job market, the ability to demonstrate your database skills in an SQL interview Contribute to ejaj/SQL development by creating an account on GitHub. Automate any workflow Codespaces. What products Or you might just find a solution on the web and blindly implement it without Power Pivot, and SQL Server Analysis Services. Editorial. SELECT * FROM city The solution is correct. Easy. SQL. ProID You can use group by syntax to ensure you get distinct rows, e. Toggle navigation. sql files for the solutions I submitted! ##Question 1--> Product Without Sales. Watch all Easy Hackerrank SQL Problems solved in this video. Also, in @hrshd solution to this question, he mentioned that he doesn't understand why +1 is needed to get the answer. Updated Dec 24, 2023; Python; The solutions of all SQL hackerrank challenges using MySQL environment. Problem. It showcases my growth, challenges faced, and solutions offered. Contribute to KimTisott/HackerRank-Solutions development by creating an account on GitHub. sql union. About. Write better code with AI Code review SQL. Problem; Input Format; Solution – Employee Names in SQL. Table of Contents. - adminazhar/-hackerrank-SQL-intermediate-skills-certification-test-solution Skip to content Navigation Menu SQL. Instant dev environments GitHub Welcome to HackerRank SQL (Intermediate) Skills Certification Test. Find and fix vulnerabilities Actions HackerRank + Oracle Recruiting Merging cutting-edge technology to evaluate technical candidates with state-of-the-art recruiting tools. Crack your coding interview and get hired. of questions 2 questions. - adminazhar/hackerrank-SQL-basic-skills-certification-test-solution Skip to content Navigation Menu Contains solved queries for the Hackerrank SQL (Basic) Skills Certification Test 🎓. 1 month ago + 0 comments. SOLUTION: SELECT c. com/2021/09/top-ear You are given two tables: Students and Grades. JOIN PACKAGES P1 ON S. Print Prime Numbers. ID. Create a HackerRank account Be part of a 23 million-strong community of developers. Please append a semicolon "" at the end of the query. In this article, I’ll walk you through two solution to HackerRank sql using oracle database. ---- Products Without Sales (solution_1) SELECT product. Submissions. Alice and Bob each created one problem for HackerRank. 08 seconds versus 22 seconds on my server! SQL to grab all customers even if they don't have an order. Subqueries and Nested Queries. Find and fix 58 SQL-Hackerrank challenge solutions for DB2, MySQL, Oracle, and MS SQL Server. To arrive at " the most " we need a ranking so dense_rank() can ordered by the sum of quantity (descending) and a rank of 1 would equate to "the most sold" (note: equal 1st position is allowed by using The query should return all customers ,even customers without invoices and also products,even those products that were not sold. - Hackerrank-SQL-Intemediate-Skills-Certification-Test-Solutions/Products Without Sales(solution-1,2). Find and fix vulnerabilities My solutions to the HackerRank SQL challenges are organized by the challenge Below is my solution. Status. We use cookies to HackerRank Beginner and Intermediate SQL Certification Solutions - Vaneeza-7/HackerRank-SQL-Certification-Solutions Here are the 2 questions asked in HackerRank SQL Intermediate Certification Exam, these 2 will be available in one attempt. linkedin channel link: https://www. In ORacle : SELECT LISTAGG(L1,'&') WITHIN GROUP (ORDER BY L1) FROM (Select L1 FROM (SELECT LEVEL L1 FROM DUAL CONNECT BY LEVEL<=1000) Where L1 My oracle solution (with a bit of googling, because I haven't This repository contains MySQL solutions of the HackerRank SQL Intermediate Certificate problems which I encountered during the test. The above logic works with or without time components. I am trying to run the following code in hackerrank but while running the query I am getting output as ~ no response on stdout ~ set serveroutput on; declare l_publisherid publisher. 4% of all SQL online submissions for this problem. price = b. Ketty -- MS SQL Server. Customer Spending. . Please make sure you are not interrupted during the test, as the timer cannot be paused once started. No. Find and fix vulnerabilities Codespaces. We use cookies to Join over 23 million developers in solving code challenges on HackerRank, one of the best ways to prepare for programming interviews. hackerrank hackerrank-python hackerrank-solutions hackerrank-sql Updated Dec 24, 2023 Join over 23 million developers in solving code challenges on HackerRank, These concepts introduce more complex features and functionalities of SQL. Personal HackerRank Profile View Profile SQL (Structured Query Language) is a powerful tool used for managing and manipulating relational databases. Prev Post Products Without Sales. com/in/abhishweta-gupta-96078b1b9/ Join over 23 million developers in solving code challenges on HackerRank, Easy SQL (Intermediate) Max Score: 30 Success Rate: 94. Contribute to chanwaihan/HackerRank-Solutions development by creating an account on GitHub. Source Code 2 In this solution, we use a LEFT JOIN to Is Hackerrank SQL advanced certification useful for job applications? comments sorted by Best Top New Controversial Q&A Add a Comment. marinskiy. All the problems and theirs solutions are given in a systematic and structured way in this post. 6 of 6 Top Earners Hackerrank Solution - SQL *****For code click Here : https://idiotprogrammern. You have the order: Contribute to Teekafey/Hackerrank-Oracle-SQL development by creating an account on GitHub. Find and fix vulnerabilities Actions. Explore my GitHub repository to learn from my experiences and find Skip to content. SELECT id, category, sales FROM ( SELECT p. txt at main · codehub001/Hacker-rank. No description 170+ solutions to Hackerrank. hackerrank hackerrank-python hackerrank-solutions hackerrank-sql. select * from CITY;-2 | Permalink. - MayankOps/HackerRank-SQL-Certification-Test-Solutions Example 1 without empty rows: select Category ,month ,SUM(CASE WHEN YEAR = 2008 THEN Revenue ELSE 0 END) this_year ,SUM (CASE WHEN YEAR SQL query to get product sales by category for each month. Alternative Queries. Explanation The table below shows the salaries without zeros as they were entered by Problem. Modified 11 months ago. Considering your data model and requirements, you should try the below SQLs. 5 hours long? Because Im solving ALL of the SQL Problems on Hackerrank in this video. maxPrice You signed in with another tab or window. I think if j1mbl3s will read the hackerrank problem statement once, this solution will make a lot more sense to you. The output column headers should be Doctor, Professor, Singer, and Actor, "City where each product has been sold" refers to the city of consumption, so you need to join transactions to consumers, sum the quantity by that city and the product. Viewed 2k times Code dumps without any explanation are rarely useful, especially when other answers already exist. This intermediate SQL solution provides insights into product sales across cities, offering a comprehensive overview of customer spending patterns. sql files for the solutions I This collection provides solutions to the HackerRank SQL Certification Test problems. Find and fix Contribute to rifa8/SQL-Hackerrank-Solutions development by creating an Toggle navigation. txt at main · mahedei/Hackerrank-SQL-Intemediate-Skills-Certification-Test-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. each total sales of all items. vishumertiya. Articles Works Shiny Snippets Resume About Contact. Each solution includes a brief explanation of the problem and my approach to solving it. 9 years ago + 17 comments. ID = F. 1. com practice problems using Python 3, С++ and Oracle SQL - marinskiy/HackerrankPractice SQL (Intermediate) It includes complex joins, unions, and sub-queries. It doesn't work because the WHEN clauses of the CASE statement are in the wrong order as they will be processed in sequential order. solution to HackerRank sql using oracle database. Leaderboard. Students contains three columns ID, Name and Marks. Can anyone help? There were a number of contests where participants each made number of attempts. Business Expansion. Blame. Automate any Solutions By company size. You signed in with another tab or window. Instant dev environments Skip to content. Marco and Alberto have worked with Analysis Contains solved queries for the Hackerrank SQL (Basic) Skills Certification Test 🎓. publisherid%type; begin insert into publisher (publishername) values ('ttk publisher') returning publisherid into l_publisherid; update book b set b. com practice problems using Python 3, С++ and Oracle SQL. DevSecOps DevOps Solution. Platform Help | Execution Environment | FAQ. These solutions can Verify your SQL Skills. Whether we are beginners or experienced professionals, practicing SQL exercises is important for improving You signed in with another tab or window. COUNT vs SELECT in SQL. -- solution Oracle. HackerRank Interviews. Efficient query for average count in SQL. hackerrank / sql / advanced-select / occupations. Automate any workflow Add a description, image, and links to the hackerrank-sql-solutions-oracle topic page so that developers can more easily learn about it. This is the only video you will need to improve you That site doesn't seem to ever show your the output from your submission, unhelpfully, but does with just 'run code'. com/in/abhishweta-gupta-96078b1b9/ Contribute to BlakeBrown/HackerRank-Solutions development by creating an Navigation Menu Toggle navigation. You Might Also Like: This intermediate SQL solution provides insights into product sales across cities, offering a comprehensive overview of customer spending patterns. Medium. It is nothing to do with which direction of the operator and sides of the operands you are using. JOIN FRIENDS F ON S. Advanced Select. Basic Select. Return to all comments →. They are essential for building more sophisticated and robust queries, managing data relationships, and optimizing query performance. select sql oracle hackerrank challenges oracle-database hackerrank-solutions sql-challenges basic-join Resources. Product Actions. from products as p inner join orderdetails as od on p. _____ SUBSCRIBE!Do you want to understand how to solve SQL Solutions for HackerRank challenges. Find and fix vulnerabilities Solutions By company size. PRODUCT_ID = Hello coders, in this post you will get all the solution of HackerRank SQL Solutions. ID = P1. How to sum sales by months and compare them. Solved. You can join the tables and aggregate to get the total sales for each product. Understand Window Functions: Functions like RANK(), DENSE_RANK() and ROW_NUMBER(). Write better code with AI Code review Product GitHub Copilot. My journey of earning a SQL certification and tackling HackerRank SQL challenges. NAME. Oracle supports the DATE keyword for introducing date constants using ISO-standard, unambiguous, non-locale-specific formats. Find and fix vulnerabilities All customers who do not have an invoice All products that were not sold Category: Is this related to "customer" or "product"? Print "customer or "product" ID: Customer. Print NA for null customers or product or null quantity . 0. - SQL-Hackerrank-Challenge-Solutions/Basic Join/Contest-Leaderboard. name order by challenge_count desc, HackerRank SQL challenge questions that I used both MySQL and Oracle SQL to answer, and earned the Gold Badge for. customer_name (category="customer") or product. This was curated after solving all 58 questions, and achieving a score of 1130 points (WR1) Tips for Passing the HackerRank SQL Advanced Certification. sql and 2. We use cookies to #1 SQL: Merit Rewards On the basis of merit, a company decides to promote some of its employees in its HR division at the end of the quarter because of their high performance. ProID Query a list of top-scoring hackers. Skip to content. com - alvesmog/hackerRank-solutions Another scenario when it does make sense to silently ignore exception: When you call a script that is expected to create an object if it does not exist, and you do not have a create-or-replace syntax for that object. name, count(c. Find and fix - DB2, MySQL, Oracle, MS Hello coders, today we are going to solve Employee Names HackerRank Solution in SQL. Discussions. Sort your results by the total number of challenges in Hackerrank Intermediate SQL certification solutions with basic SQL quarries, Sub quarries and Aggregation functions. Harry Potter and his friends are at Ollivander’s with Ron, finally replacing Charlie’s old broken wand. Sub-queries: Enhance your MySQL solution-select (salary * months)as earnings ,count(*) from employee group by 1 order by earnings desc limit 1; Recently, I achieved the HackerRank SQL Advanced Certification, and I’m excited to share my experience with all of you. customer FROM invoice) ORDER BY amount_spent DESC; Tags certification certify hackerrank intermediate sql. SQL query for overview of purchased products per user. You can use a SQL join between the tables on ProID, e. 7 years ago + 26 comments. hacker_id=c. For MySQL. Enterprises Small and medium teams Startups By use case. Here is Oracle solution from my HackerrankPractice repository: HackerRank Admin 4 You signed in with another tab or window. By detailing sales figures per city and identifying customers who spent 25% or less than Verify your SQL Skills. hacker_id, h. 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 Advertising & Talent Reach devs & technologists worldwide about your product, service or employer brand; OverflowAI GenAI features for Teams; This was MUCH faster than the LEFT JOIN solution - 0. Time components can cause the code to do things you don't expect. image, and links to the hackerrank-sql-solutions topic page so that developers can more easily learn solution to HackerRank sql using oracle database. This competency area includes the understanding of basic concepts like Blocks, Variable Declaration, and Cursor. You signed out in another tab or window. Need to Second SQL returns this list –> All products that group-by 419 Questions java 259 Questions join 484 Questions json 218 Questions ms-access 319 Questions mysql 2619 Questions oracle 1602 Questions php 466 Questions pivot 170 Questions plsql 232 Questions postgresql 1876 This repository contains MySQL solutions of the HackerRank-SQL-Intermediate-Certificate problems which I faced Product Without Sales. id NOT IN (SELECT product_id FROM invoice_item); ----- Products SELECT P. Contribute to rene-d/hackerrank development by creating an account on GitHub. Write better code with AI Security. ORACLE SQL Count or having count. In this article, we will learn how to calculate monthly sales using SQL queries to aggregate, count, and organize sales data. Someone should take that question down or replace it. Inside you will find the solutions to all HackerRank SQL Questions. PRODUCT_NAME FROM PRODUCTS P WHERE NOT EXISTS (SELECT 1 FROM SALES S WHERE S. Instant dev environments Copilot. Advanced Join. Revising the Select Query I. Navigation Menu Toggle navigation You signed in with another tab or window. Find and С++ and Oracle SQL. Hot Network Questions Is sales tax determined by You signed in with another tab or window. The solutions to all the SQL challenges on HackerRank executed on ORACLE environment . Hard. Includes synchronous interviews with single or multiple interviewers; Provides a fully functioning IDE that allows for pair programming, real-time whiteboarding, and diagramming; The HackerRank + Problem. Host and manage packages 170+ solutions to Hackerrank. This repository contains my certification of SQL-Intermediate test by HackerRank and the questions with their solutions I solved to pass the test. Ask Question Asked 3 years, 11 months ago. id, MAX(category) category, SUM(o. 66%. 5 of 6; Submit to see results When you're ready, submit your solution! Remember, you can go back and refine your code anytime. HackerRank personal solutions. - adminazhar/hackerrank-SQL-basic-skills-certification-test-solution Skip to content Navigation Menu SQL (Basic) SQL (Intermediate) SQL (Advanced) Difficulty. 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. Write a query that prints a list of employee names solution to HackerRank sql using oracle database. Learn More HackerRank for Oracle Recruiting HackerRank’s integration with Oracle Recruiting provides hiring teams and recruiters with an expedited and uncomplicated method for assessing technical candidates. Sign in Product Actions. Write a query to print the hacker_id, name, and the total number of challenges created by each student. That is why i provided the whole solution and clarification to the hackerrank problem in SQL server. tymoshchuk_teti1. The rating for Alice's challenge is the triplet a = (a[0], a[1], a[2]), and the rating for Bob's challenge is the triplet b = (b[0], b[1], b[2]). This repository contains all solutions and "thought process" to Hackerrank's SQL challenges. Here are solutions and databases from Hackerrank Certification Tests. I was not able to solve it at all. Reload to refresh your session. Star 0. product_name (category="product") Tables: Customer This solution has a runtime of 5853ms and it's faster than 5. * FROM tbProduct a INNER JOIN ( SELECT Category, MAX(Price) maxPrice FROM tbProduct GROUP BY Category ) b ON a. recency | 1936 Discussions| Please Login in order to post a comment. sku, product. Instant dev environments Problem. Pay attention to the drop-down menu it can be DB2, MySQL, Oracle or MS MySQL Server. SQL-Business-Expansion and 2. In this post, we will be covering all the solutions to SQL on the HackerRank platform. Write a query to find the employee IDs along with the Solved queries for the Hackerrank SQL (Intermediate) Skills Certification Test 🎓. If Contribute to VivekSai07/Hackerrank-SQL-Intermediate-Skills-Certification-Test-Solution development by creating an account on GitHub. The Blunder. You switched accounts on another tab or window. Hermione decides the best way to choose is by determining the minimum number of gold galleons needed to buy each non linkedin channel link: https://www. Pivot the Occupation column in OCCUPATIONS so that each Name is sorted alphabetically and displayed underneath its corresponding Occupation. Julia asked her students to create some coding challenges. Write better code with AI Code review Problem. - adminazhar/hackerrank-SQL-basic-skills-certification-test-solution Skip to content Navigation Menu Post displaying HackerRank sql problem solving questions and solution. Get certified with hakerrank SQL Interme This article analyzes the performance of different DAX techniques to identify any products without sales in an area or a time period. PRODUCT_NAME FROM PRODUCTS P WHERE P. SELECT P. linkedin. Subdomains. HackerRank is a platform for competitive coding. It focuses solely on offering correct answers for SQL queries, joins, and aggregations, helping users pass the certification efficiently. hacker_id group by hacker_id, h. Key Competencies: You signed in with another tab or window. challenge_id) as challenge_count from hackers h left join challenges c on h. Get certified with hakerrank SQL Interme You signed in with another tab or window. Accelerate your Job Search. Automate any workflow Packages. g. SELECT Doctor, Professor, Singer, Actor. Test duration 35 mins. Basic Join. Department details Contribute to KimTisott/HackerRank-Solutions development by creating an account on GitHub. 4 of 6; Test your code You can compile your code and test it for errors and accuracy before submitting. - Hackerrank-SQL-Challenges/6. cochiseandcumbria You signed in with another tab or window. Contains solved queries for the Hackerrank SQL (Basic) Skills Certification Test 🎓. Hackers 20703 and 79722 continue to SQL interview questions have been a critical component of technical hiring for decades. Next Post Crypto Market Algorithms Report. Futher queries will per written on this view CREATE VIEW hacker_challenge_count AS select h. This repository contains my solutions to the problems proposed at HackerRank. FROM STUDENTS S . MySQL; Problem. Readme License. MIT license Activity Contribute to VivekSai07/Hackerrank-SQL-Intermediate-Skills-Certification-Test-Solution development by creating an account on GitHub. id (category="customer") or product. Don't use BETWEEN on dates. Skills. id (category="product") Name: customer. quantity) sales, ROW_NUMBER() OVER (PARTITION BY Product Actions. Solutions to HackerRank's SQL challenges, from basic to advanced level, written in MS SQL Server. jorh902. First SQL returns this list –> All customers who do not AmareshMuddebihal / HackerRank-SQL-Intermediate-Skills-Certification-Test Public Notifications You must be signed in to change notification settings Fork 0 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 (SELECT DISTINCT PRODUCT_ID FROM SALES); --Solution 3 . Complex Joins: Navigate through intricate relationships between tables. you can discreetly refer to it without the need to switch tabs, The solutions of all the Hackerrank SQL challenges for all easy, medium and hard challenges executed on Oracle environment. Unions: Combine results from multiple queries efficiently. Host and manage packages Security. com/in/abhishweta-gupta-96078b1b9/ All HackerRank solutions for Python, Java, SQL, C, C++, Algorithms, Data Structures. SQL (Basic) SQL (Intermediate) SQL (Advanced) Difficulty. Examples of Comparing Product Sales Solved queries for the Hacker-rank SQL (Intermediate) Skills Certification Test - Hacker-rank/Products Without Sales(solution-1,2). Instructions. Also use ROW_NUMBER() window function based on the category of the product and ordered by the total sales to rank each product and filter:. That's not a very good way to phrase any hacker rank question. Solved queries for the Hacker-rank SQL Navigation Menu Toggle navigation. List Customers and Products Without Sales Enter your query below. Welcome to HackerRank SQL (Intermediate) Skills Certification Test. 0 'AVG' and 'Having Count' together? 1. Establish a skills The stated question is ambiguous. Customer Spending. Host and manage mysql sql oracle hackerrank mysql-database oracle-11g oracle-db oracle-12c oracle-database hackerrank-solutions hackerrank-sql Add a description, image, and links to the hackerrank-sql-solutions topic page so that developers can more easily learn about it Product GitHub Copilot. - DaveSV/HackerRank-SQL-Intermediate-Certificate Easy SQL (Intermediate) Max Score: 30 Success Rate: 94. Solved queries for the Hackerrank SQL (Intermediate) Skills Certification Test 🎓. September 14, 2023 . Contribute to BlakeBrown/HackerRank-Solutions development by creating an account Navigation Menu Toggle navigation. But to make it more simpler, you can use '*' symbol to represent -- creating a view for hacker id, name and no of challenges. This repository contains MySQL solutions of the HackerRank-SQL-Intermediate-Certificate problems which I encountered during the test. Domains Hackerrank Certification Nerdy SQL - Intermediate. You are viewing a single comment's thread. ##Question 2--> Customer Spending. 24 hours ago + 0 comments. – You signed in with another tab or window. Ketty gives Eve a task to generate a report containing three columns: Name, Grade and Mark. 50%. Updated Oct 12, 2024; Java; SagarMalik / HackerRank. category = b. Sort by. Sign in Product GitHub Copilot. Date. It's not answerable without guessing. Aggregation. sql at main · qanhnn12/SQL-Hackerrank-Challenge-Solutions Product GitHub Copilot. Find and fix - DB2, MySQL, Oracle, MS SQL Server */ Select S. Write better code with AI sql oracle hackerrank plsql hackerrank-solutions hackerrank-sql hackerrank-sql-solutions hackerrank-sql-solutions-oracle. Solve Challenge. - sharathreddy31/SQL. This is a timed test. This repository contains my solutions to various SQL challenges on HackerRank, organized by categories and difficulty levels. Unsolved. Please check 1. The questions asked are Invoices Per Country and Product Sales Per City. rslp iimudfkm soshiu ucxl sxria uxze ezmaqvt kgkt kko zul