Hackerrank sql practice question. HackerRank is a platform for competitive coding.

Hackerrank sql practice question Star 11 This repository serves as a collection of Join over 23 million developers in solving code challenges on HackerRank, one of the best ways to prepare for programming interviews. Covered in subquery practice exercises 10, 11, 12, Question: Query the smallest Northern Latitude (LAT_N) from STATION that is greater than . A basic understanding and good practice of Hard SQL (Intermediate) Max Score: 50 Success Rate: 85. 2. It includes solutions to 25 questions in the SQL (Basic)/ SQL (Intermediate) Select Skill in the Easy and Medium Diffic This repository is complete and contains solutions to all the HackerRank SQL Practice Questions of all difficulty types. The The repository is organized as follows: Easy: Beginner-level SQL challenges. To practice this SQL translation skill can also check out the 60+ question on DataLemur. Easy Problem Solving (Basic) Max Score: 15 Success Rate: 93. This competency area includes the understanding of basic concepts like Blocks, Variable Declaration, and Cursor. SQL window functions is considered a ‘hard’ concept in SQL. ; Hard: Advanced-level SQL challenges. HackerRank SQL Practice -Basic Select — Nikhitha Perapola. Let's walk through this sample challenge and explore the features of the code editor. View Roadmap. 15 Days of Learning SQL. They are essential for building more sophisticated and robust queries, managing data relationships, and optimizing query performance. Documenting the answers to the practice questions which I have successfully completed and passed the code in the compiler on HackerRank. Best of all, it’s 100% free, and features Hackerrank Coding Questions for Practice. Data Analyst; Data Analyst (Python) Data Analyst (R) Data Scientist; Data Scientist (Python This collection provides solutions to the HackerRank SQL Certification Test problems. SQL is a standard language for storing, mani Apache Spark is an open-source software framework built on top of the Hadoop distributed processing framework. Are there any platforms that I can practice more (Free) Hard questions on? Can't afford to pay for membership at the moment; will definitely look forward to buying Leetcode's subscription when possible for me! The exercises in this article come from our SQL Practice Set. You can PL/SQL is an extension of the SQL language that combines the data manipulation power of SQL with the processing power of procedural language to create super-powerful SQL queries. The repository is organized as follows: Easy: Beginner-level SQL challenges. - MayankOps/HackerRank-SQL-Certification-Test-Solutions Join over 23 million developers in solving code challenges on HackerRank, one of the best ways to prepare for programming interviews. The solutions of all the Hackerrank SQL challenges for all easy, medium and hard challenges executed on Oracle environment. Alternative Queries. It's frustrating. Feel free to use, share, and improve upon it! 🚀 Level up your SQL skills with these HackerRank challenges and become a coding master! 🚀 Query all columns for all American cities in the CITY table with populations larger than 100000. Join over 11 million developers in solving code challenges on HackerRank, one of the best ways to prepare for programming interviews. 23%. , MySQL, PostgreSQL) and connect to it using a SQL client. . ; Query a list of CITY names from STATION for cities that have an even ID number. SQL (Basic) SQL (Intermediate) SQL (Advanced) Difficulty. Your score for a problem depends on the number of test cases your submission successfully passes. Click here to see more codes for Raspberry Pi 3 and similar Family. Key Takeaways. 66%. Practice SQL questions to enhance our skills in database querying and manipulation. Updated Oct 25, 2022; iweld / 8_week_sql_challenge. 0. Find and fix vulnerabilities Contains solved queries for the Hackerrank SQL (Basic) Skills Certification Test 🎓. where LAT_N is the northern latitude and LONG_W is the western longitude. These concepts require a deeper understanding of SQL and its ecosystem. 2D Array - DS. Sorting. This platform is at the top of my personal list for practice. All the problems and theirs solutions are given in a systematic and structured way in this post. Join over 23 million developers in solving code challenges on HackerRank, one of the best ways to prepare for programming interviews. g. Some skills like subqueries, complex join, etc were tested but way more complicated things were on the test. So, start solving these HackerRank SQL questions today and level up your SQL skills! Complex joins-This competency includes using INNER, LEFT, RIGHT, and FULL joins on multiple tables and using joins for many-to-many relationships. Data Analyst. I also tried stratascratch and it's all good, everything is as you expect. Solve Challenge. The HackerRank Advanced SQL Certification Forums: The forums are a great place to ask Questions Diversity: The challenges range from basic to advanced SQL tasks, including subdomains like Basic Select, Advanced Select, Aggregation, Basic Join, Advanced SQL Advanced; Python Intermediate; R Intermediate; Statistics; Excel; Power BI; Tableau; Typical years of experience. Note — All these codes have been tested You signed in with another tab or window. Exercise 4: Calculate Moving Average for Scores. There’s also Using ROUND, LIMIT, WHERE, and ‘<’ in SQL Server — - Note — Although, we have used three approaches to solve this question, in real-time, the first approach (using max function without sub Subjective questions in HackerRank Tests are open-ended. If you have not heard of HackerRank, it is a leading technical assessment Join over 23 million developers in solving code challenges on HackerRank, one of the best ways to prepare for programming interviews. Articles Works Shiny Snippets Resume About Contact. Each solution is crafted to address a specific SQL problem from the HackerRank SQL challenge set, covering A fantastic place to practice SQL questions is Hacker Rank. The notebook has been run using the Databricks Community Join over 23 million developers in solving code challenges on HackerRank, one of the best ways to prepare for programming interviews. Join over 23 million developers in solving code challenges on HackerRank, one of the best ways to prepare for programming interviews. It is tightly integrated with Excel, works on computers and mobile devices, and is offered at various levels of capabilities. This is hard SQL question asked in DELL and MICROSOFT interview published at stratascratch. The solutions cover a wide range of SQL challenges, Write better code with AI Security. Through these exercises, you could learn and practice all the most common join topics that SQL (Basic) SQL (Intermediate) SQL (Advanced) Difficulty. HackerRank Technical MCQs Test | Domain Test PrepInsta provides you information regarding HackerRank Technical MCQs also known as HackerRank Domain Test on this page. Hard SQL (Advanced) Max Score: 50 Success Rate: 78. Prepare to showcase your understanding of SQL concepts, data manipulation, and writing optimized MongoDB is a document-based No-SQL database. The reverse_words function starts by splitting the sentence into individual words using the split() method. Database Systems: MySQL, Oracle, Microsoft SQL, or DB2. 1 of 6; Review the problem statement Each challenge has a problem statement that includes sample inputs and outputs. You switched accounts on another tab or window. Rules The creator of this contest is solely responsible for setting and communicating the eligibility requirements associated with prizes awarded to participants, as well 📜 License. In this playlist we are solving every sections of s where LAT_N is the northern latitude and LONG_W is the western longitude. You can filter the questions by their difficulty levels: easy, medium, and hard. Dictionaries and Hashmaps. We use cookies to ensure Using MIN and MAX Functions — — Note — All these codes have been tested against HackerRank’s MySQL Interface and might not work in other interfaces such as that of Oracle or DB2. Status. We use cookies to ensure you have SQL Exercises for Practice. 77%. So, to help you prepare, we've This is a short practice test to brush up your knowledge in SQL. It has more than 80 interactive SQL exercises covering topics like simple queries, JOINs, subqueries, – and, of course, GROUP BY. This project is open-source and available under the MIT License. hacker_id as id, h. There are a total of 58 problems of varying difficulty level that test different concepts. 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. Assistance with an SQL Subquery. “Hackerrank SQL Practice questions-P2” is published by Ankit songara. Features: A custom checker validates test cases after execution. The CITY table is described as follows: 18 Complex SQL Queries for Practice. ; Advanced: Expert-level problems and more complex queries. For most people and projects I think doing the project will have a basically 0 impact on decision to consider you at a place like that and so if you can get the interview the thing to prep is coding + domain questions. Interview Prep | Blog Test your code You can compile your code and test it for errors and accuracy before submitting. Sep 6, 2020. 40% The thing that bothers me with HackerRank SQL questions is that it doesn't show the SQL queries output properly, like with a table, with the column names etc. 🔥SQL stands for Structured Query Language. This competency area includes the usage of Exception Handling, Procedures, and Functions, as well as a good understanding of Type and Package. Luck Balance. I am looking for something similar to practice SQL questions as well. These problems are divided based on difficulty. Subdomains. About. We use cookies to ensure you have the best browsing experience on our website. In this playlist we are solving hackerrank sql problems . This repository contains solutions to various SQL challenges from HackerRank. Integrations. Prizes are optional. Easy SQL (Intermediate) Max Score: 30 Success Rate: 94. You may add any prizes that you would like to offer here. HackerRank Technical MCQs involves question from different topics of computer programming such as Data Structures, OOPS, Networking, SQL, etc. You can tell your friends about SQL. since LeetCode and HackerRank are great for Data Structures and Algorithms but not good for SQL prep quite frankly. After a slow start, Swiggy snowballed into an unstoppable force that is now changing the way India eats. 8223 words 42 min read Easy SQL (Intermediate) Max Score: 30 Success Rate: 94. SQL Subquery Questions. Sep 26, 2024. Ok | Prepare; Certify; Compete Question: Query the Western Longitude (LONG_W) for the largest Northern Latitude (LAT_N) in STATION that is less than. 1. Relational Algebra - 4. We also offer other Explanation. This repository contains all 58 solutions to the HackerRank SQL Practice Questions. It includes solutions to 25 questions in the SQL (Basic)/ SQL (Intermediate) Select Skill in the Easy and Medium Difficulty category. Front-End Developer Potential Theory Questions for SQL Exams from (https://data36. It is organized into six folders, each containing my solutions for easy, medium and difficult challenges executed in a MySQL environment. Skills Directory. 40% of companies test this subject. You signed out in another tab or window. We use cookies to ensure Swiggy is a phoenix that rose out of Harsha & Nandan's earlier venture, Bundl Technologies. Get noticed by companies Candidates who successfully clear the test will be specially highlighted to companies when they apply to relevant roles. Welcome to the ultimate HackerRank SQL Solutions playlist by Data Analyst Explorers! 📊 Whether you're a budding data enthusiast or an experienced analyst, You were given the problem and a couple test cases. Steps to Answer a Subjective Question. There were 7 other choose all that apply questions. Ok | Prepare; Certify; Compete Day 1 Prepare for you upcoming programming interview with HackerRank's Ultimate Interview Preparation Kit Documenting the answers to the practice questions which I have successfully completed and passed the code in the compiler on HackerRank. Weather Observation Station 18. Print the results in any order, but exclude duplicates from the answer. Easy Problem Solving (Basic) Max Score: 20 Success Rate: 93. in this article we have collected the most asked and most important Hackerrank coding questions that you need to prepare to successfully crack Hackerrank coding round for companies like IBM, Goldman Hackerrank SQL Practice questions-P5. ; Medium: Intermediate-level SQL challenges. Practice You might like to solve practice problems on HackerRank. Inserting a Node Into a Sorted Doubly Linked List. mysql sql solutions hackerrank problem-solving hackerrank-solutions hackerrank-challenges hackerrank-sql hackerrank-sql-solutions I've exhausted all the free resources on Leetcode, Interview Query and Hackerrank for (Free) Hard SQL Questions. com. This creates a list of words. HackerRank is completely free for developers and users. - MayankOps/HackerRank-SQL-Certification-Test-Solutions. Nothing much to worry about! This repository contains solutions to various SQL challenges from HackerRank. sqlpad. Continent) and their respective average city populations These are just a few examples of the HackerRank SQL questions available on the platform. The CountryCode for America is USA. It focuses solely on offering correct answers for SQL queries, joins, and aggregations, helping users pass the certification efficiently. These interview questions involve SQL (Basic) SQL (Intermediate) SQL (Advanced) Difficulty. Below you can find the Top 25 Hackerrank based coding questions with solutions for the Hackerrank Coding test. Sr. Multiple Choice Question Max Score: 2 Success Rate: 67. Topics Join over 23 million developers in solving code challenges on HackerRank, one of the best ways to prepare for programming interviews. com) Let’s say you have two SQL tables: authors and books . Ankit songara. In this post, we will be covering all the solutions to SQL on the HackerRank platform. HackerRank is a platform for competitive coding. Reply reply More replies. Next, the function uses the reversed() function to reverse the order of 170+ solutions to Hackerrank. Basic These concepts introduce more complex features and functionalities of SQL. Basic SQL Queries The HackerRank Skills Certification Test is a standardized assessment to help developers prove their coding skills. If you have not heard of HackerRank, it is a leading technical assessment This repository contains solutions to all the HackerRank SQL Practice Questions. Guestbook. By practicing these questions and exploring other SQL challenges on HackerRank, you can enhance your SQL skills and become more This repository contains all 58 solutions to the HackerRank SQL Practice Questions. ⚡ Solutions to coding challenges on HackerRank (Python, Java, C++, SQL, Problem Solving & Math) <\> Issues Pull requests Solutions of HackerRank Questions . Rules. Multiple Choice Question Max Score: 2 Success Rate: 64. I came across 3 sites which have SQL question bank like LC - stratascratch. Open main menu. So, without wasting any time, let’s jump to the Medium SQL (Intermediate) Max Score: 30 Success Rate: 96. Exercise: For each procedure, show the following information: procedure_date, doctor_id, category, name, score and the average score from the procedures in the Practice queries on Select, Where, Limit, Order by, Aggregates, Group by, Joins, Sub-queries and Case expressions. Medium SQL (Basic) Max Score: 25 Success Rate: 98. Hard. Advanced Select. ; The HackerRank Advanced SQL Certification Practice Exams: These exams provide you with an opportunity to practice the skills you need to pass the real exam. com practice problems using Python 3, С++ and Oracle SQL - marinskiy/HackerrankPractice Join over 23 million developers in solving code challenges on HackerRank, one of the best ways to prepare for programming interviews. These problems are generated by HackerRank, but the solutions are provided by Niyander. This isn’t all there is to SQL, of course. The authors dataset has 1M+ rows; Create an Join over 23 million developers in solving code challenges on HackerRank, one of the best ways to prepare for programming interviews. 74%. Please read our cookie policy for more information about how we use cookies. Something to remember is most companies will use their own questions 170+ solutions to Hackerrank. This repository contains my solutions to all the HackerRank SQL Practice Questions. Binary Tree Nodes. 3. They use their knowledge of statistical analysis, data modeling, and data visualization to provide insights that help businesses make informed decisions. Basic Select. Seamlessly connect with Database programming questions to test SQL proficiency. name as name, COUNT(c. e. Alternatively, depending on your comfort level, you can choose to practice questions on basic, intermediate, and advanced SQL topics. Solving code challenges on HackerRank is one of the best ways to prepare for programming interviews. Write a query to print total number of unique hackers who made at least submission each day SQL JOINs Practice Makes Perfect. I've given the Hackerrank SQL test for 5-6 different companies. This repository is complete and contains solutions to all the HackerRank SQL Practice Questions of all difficulty types. Easy. Aggregation. Then I started Hackerrank for more advanced practice. There was a button to test the code then to submit. 5 of 6; Submit to see results When you're ready, submit your solution! This collection provides solutions to the HackerRank SQL Certification Test problems. Medium. The HackerRank Skills Certification Test is a standardized assessment to help developers prove their coding skills. Medium SQL (Intermediate) Max Score: 30 Success Rate: 97. Activities involved: Setting up a database environment and understanding SQL’s purpose and use cases. Key Competencies: 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 Power BI is a cloud-based set of analytic tools and capabilities that expand the utility of Excel for data analytics. How to access and use 2d-arrays. These questions require candidates to write essay-style answers, explain definitions, describe scenarios, or provide opinions in plain text. SQL Practice Problems 57 beginning, intermediate, and advanced challenges for you to solve using a "learn-by-doing" approach Sylvia Moestl Vasilik Sold to Once you finish all the questions, you’ll have some very useful skills in data analysis and advanced Select statement usage. To learn Pyspark, I have obtained data and answered questions from Hacker Rank. That's why IBM uses HackerRank for SQL query questions in interviews for Data Science, Solutions Architect, and & Data Engineering jobs. 20%. That’s where HackerRank comes in. Mysql Sub queries. My code for this challenge is in MySQL: SELECT c. We use cookies to ensure Day 1 Prepare for you upcoming programming interview with HackerRank's Ultimate Interview Preparation Kit Hard SQL (Intermediate) Max Score: 50 Success Rate: 85. Questions Diversity: The plan includes a mix of challenges ranging from basic to medium difficulty, covering various aspects such as basic joins, aggregate functions, The HackerRank Question is here. SQL Certification Preparation: Using practice tests, free resources, and assessment exams is essential for preparing for the SQL certification test. It is very important that you all first give it Hello coders, in this post you will get all the solution of HackerRank SQL Solutions. It seems like SQL questions are either super basic (filtering and joins) or really intense. Starts in. Once you reach the interview stage again for most normal projects they aren’t going to really impact the decision made. io. Java and SQL practice. More Practice? Perfect-er! Twelve SQL join exercises is a solid amount of practice. The output is in a "code-ish" format. We use cookies to ensure Julia conducted a days of learning SQL contest. - adminazhar/hackerrank-SQL-basic-skills-certification-test-solution HackerRank. These folders contain solutions for all easy, medium and difficult challenges Average Population of Each Continent | Easy | HackerRank Given the CITY and COUNTRY tables, query the names of all the continents (COUNTRY. Which leads me to believe it is the opposite. 68%. The first two covering basic math and statistics and the third section Join over 23 million developers in solving code challenges on HackerRank, one of the best ways to prepare for programming interviews. Click here to see more codes for NodeMCU ESP8266 and similar HackerRank SQL Solutions. hacker_id = c. It's all about translating the word problem into SQL, which sounds easy, but the problems are written quite weirdly on HackerRank. Reload to refresh your session. Example Task: Install a relational database (e. If you’re a data scientist or software engineer on the job market, the ability to demonstrate your database skills in an SQL Introduction to SQL. Tweet it Share it. Remember, the key to mastering SQL is practice. Please refrain from discussing strategy during the contest. With the aid of AI, you can get HackerRank’s SQL practice suite has hundreds of questions available for you to practice. Data Engineering Interview Questions: SQL and Databases II In databases, efficient SQL queries are important for optimal performance. Prizes. Advanced Join. Skills. This repository includes my answers for the SQL practice questions provided by HackerRank. 118: Role-related questions: Unlimited interviews: Interview templates: Start 14-day free trial. Exactly, practice makes perfect. mySQL subqueries. Practice hard questions: Interviews can be hands-on, with problems to solve on CoderPad, HackerRank, or even a whiteboard session. SQL (Basic) SQL Easy SQL (Intermediate) Max Score: 30 Success Rate: 94. Interview Preparation. In a test for the Database Engineer role, candidates are tested on their knowledge of Database Management Systems. As we know, it is very critical that the It offers over 9,000 problems and questions. This competency area includes installation of Spark standalone, executing commands on the Spark interactive shell, Reading and writing data using Data Frames, data transformation, and running Spark on the Cloud, among others. Weather In this article, I am going to share HackerRank SQL Solutions with you. sql leetcode codewars datacamp sql-challenges sql-practice sql-interview-questions sql HackerRank for Work provides specially assembled Database Engineering questions that allow you to assess a candidate’s SQL skills. The questions are of three levels of difficulty: Easy, Intermediate and Hard. interviewquery. com practice problems using Python 3, С++ and Oracle SQL. Reply reply find total number of view, total number of unique views, total number of submissions and total number of accepted submissions. Data analysts are responsible for collecting, analyzing, and interpreting large datasets to identify patterns and trends. Published on November 5, 2020. SQL at Work Analytics case studies Top SQL Interview Questions. We Click here to see solutions for all Machine Learning Coursera Assignments. SQL. Database Query Languages. to. I am trying to grow my SQL skills and I wanted to ask if hackerrank is a good place to practice or if there are any other good resources? Im not looking for classes as I have taken dozens but a place to practice for interview prep. They are necessary for optimizing performance, managing complex queries, ensuring data integrity, and leveraging advanced features for high-level query design and development. Select the Subjective question in your test or click Solve to open the question interface. 2 of 6; Choose a language Select the language you wish to use to solve this mysql sql cheatsheet mysql-solutions hackerrank-sql-solutions sql-practice sql-cheatsheet sql-solutions. Free Test Platforms: Free Solved SQL Questions from Hackerrank. SQL Server Certifications: These certifications are valuable for those working in Microsoft-based environments and cover database management, security, and optimization. We use cookies to ensure So I've been given the HackerRank Data Analyst test for interview, for preparation I've been doing SQL practice on HackerRank. For beginners starting their journey into programming without any prior knowledge, this will definitely be helpful. SELECT COUNT(CITY) — COUNT(DISTINCT CITY) FROM STATION ; X. Each solution is crafted to address a specific SQL problem from the HackerRank SQL challenge set, covering various aspects of SQL including Hackerrank is a great platform to practice SQL queries. Reason: Fundamental setup and understanding are necessary to start writing SQL queries. We use cookies to ensure you have the best Post displaying HackerRank sql problem solving questions and solution. View Jobs. Assess technical hires with real-world coding questions. Difficulty : Easy. MongoDB stores all schema and records using a JSON-like syntax and makes use of collections and documents. HackerRank offers a variety of 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. 70% of companies test this subject. Now, that you have built a solid foundation in intermediate SQL, It’s time to practice with some advanced SQL query questions with answers. 15%. Contribute to cholu6768/SQL-Hackerrank-Practice-Questions development by creating an account on GitHub. HackerRank is one of the best online platforms for learning and practicing coding, especially for SQL. See Challenges. Crack SQL Interview in 50 Qs. Unsolved. Round your answer to decimal places. The questions can be answered in 4 different types of SQL flavours and I decided to answer them using MySQL. Each question covers a different aspect of SQL, providing a comprehensive learning experience. For example, if there are three records in the table with CITY values ‘New York’, ‘New York’, Solutions to Problems For SQL on Leetcode, Hackerrank & DataLemur - mdh266/SQL-Practice Wannabe Oracle dev here. A participant’s score depends on the number of test cases a participant’s code submission Hackerrank contains 58 SQL based problems for interview practice, as i go through these will keep a solution bank here categorised into the three difficulties (basic, intermediate, advanced) The HackerRank Skills Certification Test is a standardized assessment to help developers prove their coding skills. Besides HackerRank, practicing on DataLemur is a good bet – has 50+ free SQL interview questions. These folders contain solutions for all easy, medium and difficult challenges 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. These questions not only tested my technical skills but also challenged me to think Hackerrank is a great platform to practice SQL queries. 5 of 6; Submit to see results When you're ready, submit your solution! HackerRank SQL Question 10 Difficulty Level — Easy to Medium Question: Query the list of CITY names from STATION which have vowels (i. 93%. Prepare for you upcoming programming interview with HackerRank's Ultimate Interview Preparation Kit. Unions-This competency includes using unions to display Join over 23 million developers in solving code challenges on HackerRank, one of the best ways to prepare for programming interviews. 50%. SQL query and Join over 23 million developers in solving code challenges on HackerRank, one of the best ways to prepare for programming interviews. Related roles. Jul 30, 2023. The STATION table is Which of the following statements about the wait-die Scheme? It is a Deadlock prevention mechanism; If the older transaction needs some resource locked by a newer transaction then the older transaction will wait. , a, e, i, o, and u) as both their first and last characters. Key Competencies: SQL (Basic) SQL (Intermediate) SQL (Advanced) Difficulty. Correlation vs Collinearity vs Multicollinearity. We use cookies to ensure you have the best browsing You signed in with another tab or window. Overview. Real World Questions. The questions are divided into 6 types: So far I have answered 45 out of 58 questions. If you're working on window functions, you can practice by using a window function to aggregate instead of a group by. Solved. Approximate Solution: Solve programming questions with custom validation logic. Skills: Write queries for data storage, retrieval, and management. Ok. 82%. Join over 23 million developers in solving code challenges on HackerRank, one of the best ways Correlated subqueries: Create subqueries that reference columns from the outer query, enabling context-aware filtering. Solved SQL Questions from Hackerrank. 🔥 Learn Basics of SQL with Complete SQL Fundamentals for Beginners. Basic SQL interview questions have been a critical component of technical hiring for decades. Input Format Join over 11 million developers in solving code challenges on HackerRank, one of the best ways to prepare for programming interviews. Basic Join. We use cookies to By practicing these questions and exploring other SQL challenges on HackerRank, you can enhance your SQL skills and become more proficient in working with databases. Poorly written queries can lead to slow A large library of SQL interview questions: take a certification exam like the SQL Intermediate Certification from HackerRank. This set of exercises is designed to challenge your SQL muscle and help internalize data wrangling using window functions in SQL. Going through them greatly The test was harder than some ‘intermediate’ level questions on hackerrank. Some challenges include additional information to help you out. We use cookies to ensure Hard SQL (Intermediate) Max Score: 50 Success Rate: 85. I'm a learn-by-doing person though, and none of the SQL practice queries and questions I've come across really mirror the actual SQL I use day to day. Basic to intermediate SQL topics 50 essential SQL questions Best for 1 month of prep time The HackerRank SQL Advanced Certification is a great way to showcase your SQL expertise. The repository contains 6 folders. Info; Rules; Scoring; Info. The start date of the contest was March 01, 2016 and the end date was March 15, 2016. hacker_id) as cnt FROM hackers h INNER JOIN challenges c ON h. swy jrobvhxs orddh bsoyonjc hxdgbnb rvett ssq hmrn jygpe xer