Leetcode interview questions sql. Reload to refresh your session.
Leetcode interview questions sql Sep 15, 2023 · Hello Data Practioners, I have curated the list of most frequently asked amazon SQL interview questions. ; One block a time: Makes coding more Level up your coding skills and quickly land a job. Apparently being honest about not knowing something and willing to learn how to complete it worked in my favor. What is SQL? SQL stands for Structured Query Language. Interview. Final Review. 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. Nov 14, 2024 · Step 3: Practice by Blocks. but you'll need to know MORE than that. Since few of the questions in the below list needs leetcode premium subscription, added the… Level up your coding skills and quickly land a job. Create blocks purely based on the question numbers(e. A job might say they have skill questions, or they might have a test for you to take but I can't tell you how many times I show up with my portfolio of work, show specific examples of complex SQL development, and then have the interviewers waive the test because it's too simple. The goal is to help you master SQL concepts and prepare for SQL-related interviews. Wasn't sure if that was the exception or if i should start grinding some of those out as well. This repository covers supplementary analysis of SQL for LeetCode and classic interview questions, tradeoff between performance optimization and developmental efficiency, and how it relates to general database design consideration (e. So 4-5 rounds of leetcode med/hards. This repository provides solutions to the LeetCode SQL 50 study plan. Best of all, it’s 100% free, and features 50+ SQL questions from real FAANG SQL interviews! Level up your coding skills and quickly land a job. Hey folks - I have an interview for a Sr BI Engineer position at Amazon next Friday. I've gotten all the way to the end of the final rounds for the fruit company and the big jungle, in terms of leetcode, no sql, all leetcode med/hard style questions. Jun 23, 2020 · For Type-1 questions, it is often to consider all the samples, rank them, and pick the best one. Today I will discuss problems 1 to 10 and their multiple solutions using MySQL, PostgreSQL, and The SQL 50 collection on LeetCode consists of a diverse range of SQL problems designed to assess and enhance your SQL skills. com/playlist?list=PLBMfP Sep 24, 2020 · Please be noted that the syntax may differ on various SQL platforms. But it's still mostly rote syntax that you'll learn. Mar 21, 2024 · Now, if you are looking for more than SQL interview questions, because you have an upcoming Data Science Interview, you should look into some LeetCode Alternatives for Data Science. 3 days ago · SQL Interview Questions and Answers for Freshers 1. For Type-2 questions, it is often to categorize samples into groups and compare the two groups. com. A lot of focus on data warehousing concepts. It was created by FAANG employees and built with a wide range of SQL-based questions, on-demand coaching, and very detailed written and video explanations. - General Behavioral Questions Level up your coding skills and quickly land a job. Review Common Interview Questions: Familiarize yourself with common SQL interview questions related to querying, data manipulation, and optimization. No leetcode questions at all. By understanding common question types, practising your skills, and following the tips outlined in this article, you can confidently tackle these challenges and demonstrate your SQL expertise to potential employers. This is the best place to expand your knowledge and get prepared for your next interview. My Lists. Build problem-solving skills and gain confidence to tackle any challenge in algorithms, data structures, and SQL. Let's Learn some important and most-asked Amazon SQL interview problems with the examples and output shown below: 1. I have used the provided pandas schema from the website and converted it into a Spark DataFrame before solving them. Login with LeetCode account or register Level up your coding skills and quickly land a job. Count Salary Categories | Leetcode 1907 |Crack SQL Interviews in 50 QsSQL TOP50 Interview Questions and Answers: https://www. I straight up wrote "Unfortunately I do not have the required sql xp to answer these questions but given a resource, I could complete them". Crack SQL Interview in 50 Qs. 𝐖𝐚𝐧𝐭 𝐭𝐨 𝐌𝐚𝐬𝐭𝐞𝐫 𝐒𝐐𝐋? 𝐋𝐞𝐚𝐫𝐧 𝐒𝐐𝐋 𝐭𝐡𝐞 𝐫𝐢𝐠𝐡𝐭 𝐰𝐚𝐲 𝐭𝐡𝐫𝐨𝐮𝐠𝐡 𝐭𝐡𝐞 Can you solve this real interview question? Second Highest Salary - Table: Employee +-----+-----+ | Column Name | Type | +-----+-----+ | id | int | | salary | int Share your videos with friends, family, and the world 🍿 The first 80 SQL coding questions are based on the same Movie rental database, which resembles a real-world commerce business. 👩💻 And by the time you are to solve some of the most Level up your coding skills and quickly land a job. If you pay for leetcode premium, you can filter for the companies. I've exhausted all the free resources on Leetcode, Interview Query and Hackerrank for (Free) Hard SQL Questions. There are many great places to practice SQL for interview questions, like bigtechinterviews. Oct 3, 2024 · Before diving into the questions, ensure you have a basic understanding of SQL syntax and statements, including SELECT, various joins (self join, left join, right join, outer join), and basic aggregate functions. Explore; Top Interview 150. Library. Swap-salary : https://leetcode. Out of the 6 questions in the first code challenge, 4 were sql. You switched accounts on another tab or window. sql: Contains the SQL solution for the corresponding LeetCode problem. Created by me. com Welcome to the LeetCode Curated SQL 70 Questions repository! This collection of SQL questions is carefully curated to help enhance SQL skills and prepare for technical interviews. This repository contains my solutions to the top 50 LeetCode SQL challenges implemented using Apache Spark DataFrame (PySpark) and Spark SQL. Once you reach the interview stage again for most normal projects they aren’t going to really impact the decision made. problem_x. Dec 19, 2024 · Master your data science interviews with this curated list of 100 LeetCode questions. Sep 29, 2023 · The drawback with LeetCode to prepare specifically for a SQL data science coding interview is that their questions seem to only focus on the technical aspects of SQL, meaning that the questions only require the user to join tables or find the 2nd highest value in a dataset. Basic to intermediate SQL topics 50 essential SQL questions Best for 1 month of prep time Nov 18, 2021 · In this blog, we shall see how to solve SQL questions on LeetCode. Feb 10, 2024 · I aim to equip readers with the knowledge and confidence to tackle SQL challenges, enhancing their data management proficiency and problem-solving acumen. indexing and join). Is the leetcode SQL study plan a good way to prep for this or are Login to LeetCode Online Interview. What you really want to do is test job interview questions (Stratascratch and Datalemur, the owner of the latter hangs out in this sub). It's more expensive, but also more effective in helping you ace our SQL interview. For Type-3 questions, it is often to make a special group first, which requires ranking to do so. These functions are Level up your coding skills and quickly land a job. Also, here is something I don't think enough people talk about. LeetCode has launched a study plan “SQL 50”, with 50 questions to practice your SQL skills. I know SQL but don't often use it at my job and when I do it's usually just a filter by clause. Solve SQL Challenges: Solve SQL challenges and exercises on online platforms like LeetCode and HackerRank to reinforce your skills. Q11. Dec 24, 2024 · Technical Phone Screen - High Level Data Structure & Algorithms Questions Coding Interview - A few Medium Difficulty Leetcode Questions - General Behavioral Questions SQL Interview - A few SQL Questions. Level up your coding skills and quickly land a job. I made DataLemur, since LeetCode and HackerRank are great for Data Structures and Algorithms but not good for SQL prep quite frankly. Same thing happened to me. e to create a database, to create a table in the database, to retrieve data or update a table in the database, etc. There's nothing wrong with that for general knowledge, infact you'll be expected to know that material like Join Types and the theory etc. sql_solutions: Contains SQL solutions organized by difficulty level (easy, medium, hard). Got some in a yahoo interview the other day. I have an upcoming interview that will have SQL programming questions in addition to regular leetcode-style problems. Hello everyone, I recently landed an Application Support Analyst interview. It is a language used to interact with the database, i. Stratascratch has interview questions taken from companies like leetcode but has a data science focus so it’s not just about getting the syntax right. 150 Original & Classic Questions Covers comprehensive interview topics 2025 LeetCode. Reply reply Mckinsey: Medium SQL questions and very easy python questions like reversing a string, getting only odd characters, removing vowels. Crack SQL Interview in 50 Qs SQL 50. Aug 6, 2024 · In this video, we delve into Top SQL Interview questions-Part 2Join the journey into data!Questions solved :1. Study Plan. The SQL Questions on LeetCode are framed pretty similar to how they are asked on SQL Interviews hence solving SQL questions on LeetCode can give you a good hands on experience on solving real world SQL questions. Apr 7, 2022 · The video covers three types of SQL questions that you need to know for data science interviews and a general approach for solving them, and this post will provide you with some practice questions Level up your coding skills and quickly land a job. SQL is an ANSI(American National Standards Institute) standard. Give an example of how to use SQL’s PARTITION BY clause. Specific sample databases are provided to Nov 19, 2024 · SQL scenario-based interview questions are designed to assess your ability to apply SQL knowledge in practical situations. Advanced SQL 50. Cleared this two times Airbnb: 2 coding rounds with very case specific python questions. And what are the common SQL questions am I likely to be asked? Table: Products +-----+-----+ | Column Name | Type | +-----+-----+ | product_id | int | | low_fats | enum | | recyclable | enum | +-----+-----+ product_id is the Here are the questions I was asked for the SQL + Excel technical portions. If the technical part has sql coding challenges, then leetcode will help u to go pass it. Yeah it's fine. Basic to intermediate SQL topics 50 essential SQL questions Best for 1 month of prep time Interview. I got two offers and declined further interviews if they wanted more than one technical interview because I was scheduling so many interviews I had to pick and choose. 🤗 From easy-level questions to challenging ones, you gradually build up a good understanding of the database schema by practicing those questions. The SQL 50 collection on LeetCode consists of a diverse range of SQL problems designed to assess and enhance your SQL skills. Store. Or you can check out Leetcode's forums for the types of questions being asked. 1. Basic Joins, Aggregations, etc. I used it a few years ago and I really liked how easy it was to practice Nov 29, 2024 · Pro Tip: Acing the SQL interview questions for experienced roles requires practicing SQL queries in various scenarios. Nov 10, 2020 · LeetCode is a great place to practice some technical questions before you interview. . Amazon Business Analyst interview included multiple SQL problems straight out of leetcode. g. The most recent Leetcode question 1596. Basic Python programming questions and SQL questions that I would say were equivalent to the more advanced questions on SQLzoo. com/problems/sw Can you solve this real interview question? Exchange Seats - Table: Seat +-------------+---------+ | Column Name | Type | +-------------+---------+ | id | int Can you solve this real interview question? Find Customer Referee - Table: Customer +-----+-----+ | Column Name | Type | +-----+-----+ | id | int | | name | varchar This repository contains leetcode Top 150 Interview Problems solutions source code in C++, C#, Java, and Python Programming languages Dec 1, 2021 · In this video, I will share my Top 25 SQL Interview Questions and Answers which I have captured from my own experience of using SQL for the past 12 years. This is the best place to expand your knowledge Level up your coding skills and quickly land a job. Must-do List for Interview Prep. I had technical interview ask platform specific questions which feels like going through a certification. There’s a lot of free content and questions on stratascratch you can try before upgrading. Sep 24, 2024 · The following questions test fundamental SQL concepts like JOIN, GROUP BY, HAVING, RANK, and window functions. Cleared this Expedia: Easy to Medium leetcode. I found one annoying thing is that some coding interviews habe really verbose questions compare to leetcode questions. The following questions are from a combination of a few different jobs I have interviewed for. So keep the reading time in mind. I'm expecting the interview to have some trickier SQL questions. HackerRank and LeetCode both have vastly improved their SQL content recently. These problems cover a wide array of SQL concepts, including basic queries, subqueries, joins, aggregations, window functions, and more. Medium SQL. 50 Advanced SQL Problems. Recyclable and Low Fat Products And these are actual interview questions, not so much SQL questions asked by a general SQL quiz. It can be solved The SQL interview can bear other names and may be called Technical Analysis or Data Interview during a FAANG company interview, you might be asked to perform a series of SQL operations to extract data and insights, and answer follow-up questions about their products. Was hoping someone here has experience on the SQL screening interview and could shed some light onto how complex the questions will be/ have resources for prepping. You signed in with another tab or window. I was told that I would be assessed on both non technical and technical like SQL My concern is what kind of technical questions should I be expecting during the interview. Nick has a great writeup on the distinction of that. Summary. Whether you are a beginner looking to dive into SQL or an experienced professional aiming to sharpen your problem-solving abilities, this repository has got you covered. LeetCode debate for SQL practice, the choice ultimately boils down to individual preferences and learning objectives. 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! Feb 17, 2024 · In SQL, the functions CONCAT and GROUP_CONCAT (or their equivalents, depending on the SQL dialect) are used to merge strings from multiple columns or rows, respectively. See full list on github. Apr 4, 2022 · 𝐖𝐚𝐧𝐭 𝐭𝐨 𝐌𝐚𝐬𝐭𝐞𝐫 𝐒𝐐𝐋? 𝐋𝐞𝐚𝐫𝐧 𝐒𝐐𝐋 𝐭𝐡𝐞 𝐫𝐢𝐠𝐡𝐭 𝐰𝐚𝐲 𝐭𝐡𝐫𝐨𝐮𝐠𝐡 𝐭𝐡𝐞 Level up your coding skills and quickly land a job. You signed out in another tab or window. Top 15 Amazon SQL Interview Questions. This was a year ago but I think they were medium. Here are some SQL interview questions with solution: Q1 1757. Basic to advanced SQL topics 50 high-frequency SQL questions Best for 1 month of prep time; Award. Reload to refresh your session. youtube. Learn these SQL Questions and also all the SQL concepts which are covered in these 25 questions to clear any SQL Interview. Coderbyte challenges included. May 28, 2024 · In this article, We will see some most asked SQL question s in the Amazon interview questions along with detailed explanations to help candidates prepare effectively. This article will introduce you to several common applications of it that are tested during the interview using examples from Leetcode. To explore more interview questions and strengthen your interview preparation, check out our guide on SQL coding interview questions and answers. LeetCode is a good platform for practicing SQL Queries. In the Data Lemur vs. , 5 questions a block) — Mixed topics, similar to an interview setting. kqkehdpykclkuddgnjevsycekrtarrnjpyycefxwfdq