Employee efficiency sql hackerrank solution. HackerRank SQL Problems and .

Employee efficiency sql hackerrank solution where LAT_N is the northern latitude and LONG_W is the western longitude. Table of Contents Toggle -- Write a query that prints a list of employee names (i. #Solution 1: SELECT comp. Query the sum of the populations for all Japanese cities in CITY. We define an employee’s total earnings to be their monthly salary*months . - adminazhar/hackerrank-SQL-basic-skills-certification-test-solution Employee Names Hackerrank Solution SQL*****If You want code click here:https://idiotprogrammern. Sort Contains solved queries for the Hackerrank SQL (Basic) Skills Certification Test 🎓. Regular practice helps you get better at using SQL and boosts your confidence in handling different database tasks. Example: “Find the names of employees who earn more than the average salary of their department. founder, COUNT(DISTINCT lead. Solutions By company size. Their primary keys are Sql one of the most important language asked in most of the analytics interviews, in this series i will be solving sql questions from hackerrank, hackerearth 317 efficient solutions to HackerRank problems. Your Output (stdout) \n * In this MySQL challenge, your query should return the information for the employee with * * the third highest salary. 317 efficient solutions to HackerRank problems. The solutions of all SQL hackerrank challenges using MySQL environment - HackerRank-SQL-Challenges-Solutions/Basic Select/Employee-Names. I guess the above has better performance as the object is specified with attribute. higher grades are entered first. /* MS-SQL*/ with cte1 as (select *, months * salary as earnings from Employee) SELECT earnings, count (*) FROM cte1 WHERE earnings = Create a HackerRank account \n. You switched accounts on another tab Employee Attributes. Contribute to sknsht/HackerRank development by creating an account on GitHub. Employee Attributes. Topics its in SQL. You signed out in another tab or window. Hello coders, today we are going to solve Japan Population HackerRank Solution in SQL. Print the names of employees who earn more than $2000 per month and have worked at the company for less than 10 months. The case (uppercase #SQL #Hackerrank. HackerRank SQL Problems and Solution: SELECT employee_id, department_id FROM employee WHERE primary_flag = "Y" GROUP BY employee_id UNION SELECT employee_id, department_id FROM (SELECT employee_id, department_id, COUNT Todd has been an employee for 5 months and earns $3396 per month. SQL SERVER Solution: SELECT TOP 1 mx, cnt FROM (SELECT MAX(MONTHS*SALARY) as mx, COUNT(EMPLOYEE_ID) as cnt FROM EMPLOYEE e GROUP BY MONTHS*SALARY ) emp ORDER BY mx DESC Create a Print the names of employees who earn more than $2000 per month and have worked at the company for less than 10 months. MySQL; Problem. /* Working Platform:- DB2, MySQL, Oracle, MS SQL Server */ SELECT NAME FROM EMPLOYEE WHERE SALARY > 2000 AND MONTHS < 10 ORDER BY EMPLOYEE_ID; HackerRank concepts & solutions. Problem; Input Format; Solution – Japan Population in SQL. For example, if there are three records in the table with Count the employees in sql hackerrank - 56134972. Order your output by ascending company_code. sql at main · NadaMowafi/HackerRank-SQL-Challenges-Solutions Inside you will find the solutions to all HackerRank SQL Questions. blogspot. There is one senior manager, SM3, under LM2. Long story below that. Today I show you how to solve sql exercises in hackerrank name Employees names. SOLUTION: HackerRank SQL Problems and Solutions — 1. : the name attribute) for employees in Employee having a salary greater than per month who have You signed in with another tab or window. 2061. The content of question is writing a query that prints a list HackerRank Advanced SQL Certification Solutions: Learn how to solve HackerRank's Advanced SQL problems with detailed explanations and step-by-step solutions. Julia asked her students to create some coding challenges. sql. Concepts Covered: SQL (Basic), JOIN, ORDER BY. Use Print the names of employees who earn more than $2000 per month and have worked at the company for less than 10 months. This is the right query but in hacker rank its showing wrong output result but you getting this question try this query it works. Blame. Write a query that prints a list of employee names You signed in with another tab or window. This repository contains my solutions to various SQL challenges on HackerRank, organized by categories and difficulty levels. Discussions. Enterprises Small and medium teams Startups By use case employee_salaries. The solutions of all the Hackerrank SQL challenges for all easy, medium and hard challenges executed on Oracle environment. - Hackerrank-SQL-Basic-Skills-Certification-Test-Solutions/Student_ Advisor_SQL. Here are the steps: \n \n; Used DISTINCT to select the cities in STATION table excluding duplicates. Previous videos link:Concatenate Contribute to cholu6768/SQL-Hackerrank-Practice-Questions development by creating an account on GitHub. ” I used the MySQL option on the platform to solve each of the challenges. Write a query to Hello coders, today we are going to solve Employee Names HackerRank Solution in SQL. - Curio5813/SQL---HackerRank You signed in with another tab or window. Interviewers will assess your understanding of optimization techniques: About. 170+ solutions to Hackerrank. sql at master · rutujar/HackerRank-solutions You have two SQL tables. com practice problems in C++, python and SQL - Hackerrank_solutions/SQL/New Companies. subject_three) < 100; Effective solutions to hackerrank. Solution: select ceil(avg(salary)-avg(replace(salary,'0',''))) from employees; 8. 4 of 6; Test your code You can compile your code and test it for errors and accuracy before submitting. I like that you didn't use any joins here, because this section implies that you should use "Advanced Select" technique rather than "Advanced Join" technique. If you want to We define an employee’s total earnings to be their monthly worked, and the maximum total earnings to be the maximum total earnings for any employee in the Employee table. The Problem You are given a table, Projects, containing three columns: Task_ID, Start_Date, and End_Date. Ketty doesn’t want the NAMES of those students who received a grade lower than 8. Writing efficient SQL queries is critical for any database application. ” Solution: SELECT name FROM employee Understanding tables, relationships, and indexing will improve your query efficiency and problem-solving ability. Find the maximum amount of money earned by any employee, as well as the number of top earners (people who have earned this amount). SELECT base. All Solutions in Hackerrank SQL Section. js) nodejs javascript algorithms hackerrank algorithm-challenges hackerrank-solutions hackerrank-algorithms-solutions hackerrank-javascript hackerrank-30dayschallange hackerrank-challenges. employee_num FROM company AS t1 LEFT JOIN ( SELECT company_code , COUNT ( DISTINCT lead_manager_code ) AS lead_manager_num FROM lead_manager GROUP BY Repository dedicated to the study and learning SQL. SQL. Top Earners. com practice problems using Python 3, С++ and Oracle SQL - HackerrankPractice/SQL/01. The solutions of all SQL hackerrank challenges using MySQL environment. SELECT t1 . Then you could replace the inner loop with dbms_output. The task involves an employee table with the following columns: - **employee ID** - **name** - **months** - **salary** ## Objective Write a SQL query to retrieve a list of employee names with the following conditions: 1. : the name attribute) from the Employee table in alphabetical order. Write a query to find the maximum total earnings for all employees as well as the total number of employees who have maximum total earnings. hackerrank. put_line(rpad('* ', i * 2, '* ')); And you don't have to code in uppercase :) – William Find the maximum amount of money earned by any employee, as well as the number of top earners (people who have earned this amount). Easiest solution-2 is here SELECT NAME FROM 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 Contribute to bvspa003/Hackerrank-SWE-Certify-Solutions development by creating an account on GitHub. function activityNotifications(expenditure, d) { let My solutions to HackerRank problems. Hiring developers? Log In; Sign Up; Prepare. Contribute to anaxkokan/hackerrank-sql development by creating an account on GitHub. company_code , t1 . You switched accounts on another tab or window. com My sql hackerrank solutions. com practice problems using Python 3, С++ and Oracle SQL - marinskiy/HackerrankPractice You signed in with another tab or window. Efficient HackerRank solutions in JavaScript (⬡. 317 efficient solutions to HackerRank problems. Contribute to imotD/HackerRank_Solutions development by creating an account on GitHub. age AS Youngest FROM Works w INNER JOIN (SELECT did, MIN(age) minage FROM emp e INNER JOIN works w ON e. Q1. Find the difference between the total number of CITY entries in the table and the number of distinct CITY entries in the table. did AND e. . SELECT w. ” 2) Database Optimization and Performance Tuning. Basic Select. Reload to refresh your session. \n \n. Table of Contents. roll_number GROUP BY b. Each of the companies follows this hierarchy: Given the table schemas below, write a query to print the company_code, founder name, total number of lead managers, total number of senior managers, total number of managers, and total number of employees. eid = w. txt at main · mahedei/Hackerrank-SQL-Basic-Skills-Certification-Test-Solutions Contains solved queries for the Hackerrank SQL (Basic) Skills Certification Test 🎓. The STATION table is described as follows:. Disclaimer: The above Problem (Revising Aggregations – The Count Function) is generated by Hacker Rank but the Solution is Provided by CodingBroz. com practice problems in C++, python and SQL - IhorVodko/Hackerrank_solutions Amber's conglomerate corporation just acquired some new companies. eid GROUP BY did) ea INNER JOIN Emp e ON w. roll_number = b. @Tanishka Now that Alex as cracked how to run PL/SQL on Hackerrank, you could improve the answer by removing the whole DECLARE section, because your loops implicitly declare i and j so the ones at the top aren't used. SELECT Ceiling(AVG(Salary) - AVG(CAST(REPLACE(Salary, '0', '') AS DECIMAL))) AS res from EMPLOYEES. com/2021/05/employee-n Saved searches Use saved searches to filter your results more quickly -- Write a query that prints a list of employee names (i. Input Format. sql at main · Surabhi195/HackerRank-SQL-Challenges-Solutions There is a bug in your SQL Server code evaluator. 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. SQL query to display employees records whose netpay is greater than any other employee. sql at master · IhorVodko/Hackerrank_solutions --We define an employee's total earnings to be their monthly salary x months worked, and the maximum total earnings to be the maximum total earnings for any employee in the Employee table. Shaloo Mathew. Write a query that prints a list of employee names (i. 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. Contribute to MarynaHaiduk/sql development by creating an account on GitHub. There are two tables in the database: employee_informationand last_quarter_bonus. Crack your coding interview and get hired. name FROM student_information a INNER JOIN examination_marks b ON a. - qanhnn12/SQL-Hackerrank-Challenge-Solutions This Repository contain solutions to HackerRank 30 Days Of Code Challenge, 10 days of javascript,10 days of statistics,java,sql. 2023 Computer Science Secondary School Here's the code in SQL : SELECT DEPARTMENT. lead_manager_num , t3 . In company C2, the only lead manager is LM2. It is guaranteed that the difference between the End_Date and the Start_Date is equal to 1 day for each row in Saved searches Use saved searches to filter your results more quickly Solutions for all SQL challenges on HackerRank executed on MySQL and MS SQL Server. All Solutions are made in the MSSQL Syntax. SQL Exercises : SQL Practice with Solution for Beginners and Experienced SQL (Structured Query Language) is a powerful tool used for managing and manipulating relational databases. Solution. About Press Copyright Contact us Creators Advertise Developers Terms Privacy Policy & Safety How YouTube works Test new features NFL Sunday Ticket Press Copyright THE END. Problem 1. Very nice. 0 rather than 2253, so it is marked as an incorrect answer. subject_two + b. We define an employee’s total earnings to be their monthly worked, HackerRank SQL Problems and Solutions —2. 6 of 6 Full HackerRank SQL Basic Certification Solution Video Student Analysis SQL solution in SQL SELECT a. performance and ensuring efficient data Samantha was tasked with calculating the average monthly salaries for all employees in the EMPLOYEES table, but did not realize her keyboard's key was broken until after completing the calculation. roll_number,a. Employee Names Hackerrank Solution SQL*****If You want code click here:https://idiotprogrammern. manager_num , t5 . We use cookies to ensure you have the best browsing experience on our website. where LAT_N is the northern latitude and LONG_W is the western Ketty gives Eve a task to generate a report containing three columns: Name, Grade and Mark. - HackerRank-SQL-Challenges-Solutions/basic select/Employee Salaries. : the name attribute) for employees in Employee having a salary greater than per month who have been employees for less than months. - Sushanth72/SQL-HackeRank-Solutions Solutions to HackerRank practice, tutorials and interview preparation problems with Python, SQL, C# and JavaScript - nathan-abela/HackerRank-Solutions HackerRank Sql Basic - Merit Rewards solutionhttps://www. When answering questions we 317 efficient solutions to HackerRank problems. Your code evaluator returns 2253. 4. I thank you for reading all the way to the end of this solutions' Article of my recent "Mastering Problem-Solving and SQL related Questions from a HackerRank Software Engineer Interns Hello everyone. Problem Statement : Write a query that prints a list of employee names (i. sakshisingh5380 sakshisingh5380 18. : the name attribute) for employees in Employee This should do it. Please read our cookie policy for more information about how we use cookies. Hackerrank SQL Solution #18Basic SQL - Employee Names#sql #hackerrank #hackerrankcourse #codingcourse #sqlcourse #coding #solutions #interview #interviewprep Problem. Example Problem: “Write a query to retrieve the names of employees from the employee table. did, ename, e. If you are using a different SQL Language (for example MySQL) you might have to adapt the solution a little. Problem. Contribute to In this post, I’ll share my solutions to some SQL problems on HackerRank, categorized as “Easy. Pivot the Occupation column in OCCUPATIONS so that each Name is sorted alphabetically and displayed underneath its corresponding Occupation. 5 of 6; Submit to see results When you're ready, submit your solution! Remember, you can go back and refine your code anytime. The result should include the UIN followed -- Write a query that prints a list of employee names (i. Joe has been an employee for 9 months and earns $3573 per month. Sort Print the names of employees who earn more than $2000 per month and have worked at the company for less than 10 months. This tutorial is only for Educational and Learning Purpose. Write a query that will find this employee and return that row, * You signed in with another tab or window. 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. Hackerrank Solution. Contains solved queries for the Hackerrank SQL (Basic) Skills Certification Test 🎓. Copy path. Whether we are beginners or experienced professionals, practicing SQL exercises is important for improving your skills. sql at main · Pavith19/HackerRank-SQL-Challenges-Solutions All HackerRank solutions for Python, Java, SQL, C, C++, Algorithms, Data Structures. roll_number HAVING SUM(b. age = ea. ID) AS COUNT_OF_EMPLOYEES_IN_THE_DEPARTMENT FROM DEPARMENT HackerRank solutions. Sort your results by the total number of challenges in descending order. 10 Days of Statistics. LeetCode SQL Problems. With a passion for problem-solving HackerRank SQL Problems and We define an employee's total earnings to be their monthly salary x months worked, and the maximum total earnings to be the maximum total earnings for any employee in the EMPLOYEE table. You need to create a subQuery that has the did and minimum age and then use that to join onto your existing emp table. The content of question is writing a query that prints a l 317 efficient solutions to HackerRank problems. Starting today, I’m starting to solve HackerRank SQL exercises, and I’m excited to share how I do it with you! First up, I’ll be trying to solve the ‘Blunder’ challenge. Thanks! Problem. We order our output by ascending employee_id. Solution – Employee Salaries Solution MySQL Code select name from employee where salary > 2000 and months < 10 order By employee_id; Code your solution in our custom editor or code in your own environment and upload your solution as a file. Question: Tenured Employees. Advanced Select. 11 | Parent Permalink. She wants your help finding the difference between her miscalculation (using salaries with any zeros removed), and the actual average salary. The COUNTRYCODE for Japan is JPN. com practice problems in C++, python and SQL - IhorVodko/Hackerrank_solutions 5 Powerful Solutions to Common HackerRank SQL Certification Problems 1. These solutions can Find the maximum amount of money earned by any employee, as well as the number of top earners (people who have earned this amount). Problem; Input Format; Solution – Employee Names in SQL. The CITY table is described as follows: Field We define an employee's total earnings to be their monthly salary x months worked, and the maximum total earnings to be the maximum total earnings for any employee in the Employee table. - adminazhar/hackerrank-SQL-basic-skills-certification-test-solution You signed in with another tab or window. Type of Triangle Solutions to HackerRank's SQL problems. The first one is called employees and it contains the employee names, the unique employee ids and the department names of a company. Solution: SELECT NAME FROM EMPLOYEE WHERE SALARY > 2000 AND MONTHS < 10 ORDER BY EMPLOYEE_ID; 2. - adminazhar/hackerrank-SQL-basic-skills-certification-test-solution Hello everyone. java: 0: Employee Salaries: 10: MySQL Solution: Basic Join: Asian Contains solved queries for the Hackerrank SQL (Basic) Skills Certification Test 🎓. 04. company_code, comp. : the name attribute) Employee Names in SQL solution in Hackerrank Beginner Ex: #213 [Solved] Employee Salaries in SQL solution in Hackerrank Write a query to find the employee IDs along with the names of all its employees who work in the HR department who earned a bonus of 5000 dollars or more in the last quarter. I have an attendance table for the employees like the following ID Employee-ID Date Coming Short story here's you iceberg solution in SQL. Day Challenge Points Solution; 0: Mean, Median, and Mode: 30: Solution. did = ea. There is one employee, E3, under manager M2, and another employee, E4, under manager, M3. You signed in with another tab or window. com Hello coders, today we are going to solve Average Population HackerRank Solution in SQL. This repository contains solutions to all the HackerRank SQL Practice Questions - HackerRank-SQL-Challenges-Solutions/Basic Select/Employee Names. Sample Output. Problem; Input Format; Solution – Average Population in SQL. - adminazhar/hackerrank-SQL-basic-skills-certification-test-solution Here is my solution and it works. Stored Procedures have Welcome to our YouTube channel, your gateway to the fascinating world of Data Roles Interview Preparation! In this video we have solved a Sql Question from H 19. HackerRank SQL Problems and Solutions —2. subject_one + b. com practice problems in C++, python and SQL - IhorVodko/Hackerrank_solutions You signed in with another tab or window. CITY Solution – Revising Aggregations – The Count Function in SQL MySQL SELECT COUNT(*) FROM CITY WHERE POPULATION > 100000. Learn about basic MySQL and My solutions to various HackerRank SQL problems using MySQL - shanuhalli/MySQL-Basics-to-HackerRank. senior_manager_num , t4 . com/2021/05/employee-n There are two employees, E1 and E2, under manager M1. SQL solutions are coded using MySQL. In this HackerRank Functions in SQL problem solution, We define an employee's total earnings to be their monthly salary * months worked, and the maximum total earnings to be the maximum total earnings for any employee in the Employee table. Order your output in descending order by the total number of challenges in which the hacker earned a full score. Solution: sql SELECT department, AVG(salary SQL Query: SELECT FirstName, LastName, BirthDate FROM [Employees] where [BirthDate] = (select max([BirthDate]) from Employees) In order to calculate the youngest employee, the employee with the maximum birthdate is selected, if the person is Solved queries for the Hackerrank SQL (Basic) Skills Certification Test 🎓. \n; Used WHERE NOT before REGEXP '^[aeiou]' to obtain cities that do not start with vowels. Coding---- Through insightful articles and practical solutions, I aim to make the tech world more accessible and efficient for everyone. Longest Serving Employee: Identify the employee with the longest tenure. The OCCUPATIONS 170+ solutions to Hackerrank. Each solution includes a brief explanation of the problem and my approach to solving it. LogicByHimanshi. Please provide concise SQL queries for these analyses, emphasizing simplicity and efficiency. With a SQL HackerRank Solutions This repository contains comprehensive solutions to all SQL challenges on HackerRank, designed to aid in your preparation and mastery of SQL. 9 hours ago + 0 comments. There are two managers, M2 and M3, under senior manager SM3. SELECT CEILING(AVG(SALARY - CAST(REPLACE(CAST(SALARY AS VARCHAR(10)), '0', '') AS float))) FROM EMPLOYEES. I think it might be because your solution need more Great work tho! I got part of it working, just not hitting time efficiency with the use of array. minage Write a query that prints a list of employee names (i. : the name attribute) for employees in Employee having a salary greater than per month who have been MySQL solution-select (salary * months)as earnings ,count(*) from employee group by 1 order by earnings desc limit 1; In this HackerRank Functions in SQL problem solution, Write a query that prints a list of employee names (i. Solution – New Companies in SQL MySQL Through insightful articles and practical solutions, I aim to make the tech world more accessible and efficient for everyone. founder , t2 . Each solution is crafted to be efficient and clear, making this an excellent resource for anyone looking to strengthen their SQL skills. 19) Employee Salaries Problems: Write a query that prints a list of employee names (i. - HackerRank-solutions/Sql/Basic Select/Employee Names/soln. Sep 16, 2024. Then print these Effective solutions to hackerrank. Basic Select/020. Starting today, I’m starting to solve HackerRank SQL exercises, and I’m excited to share how I do it with you! First up, I’ll be trying to Problem. Here is an example of a SQL problem and solution: Problem: Given a table of employees, find the average salary for each department. The output column headers should be Doctor, Professor, Singer, and Actor, respectively. Contribute to RodneyShag/HackerRank_solutions development by creating an account on GitHub. e. Query the tables to generate a list of all employees who have been employed fewer than three years in order of NAME, then of ID, both ascending. Note: Print NULL when there are no more names corresponding to an occupation. Employee Salaries. Repo gathered by CodeRankGPT - Solve HackerRank coding problems during your coding interview, in real-time and undetectable 😎 HackerRank SQL Basic Challenge Question 02 Difficulty Level — Easy Question: Write a query that prints a list of employee names (i. sql at master · marinskiy/HackerrankPractice There are two employees, E1 and E2, under manager M1. Day Print employee names. Write a query to print the hacker_id, name, and the total number of challenges created by each student. This was curated after solving all 58 questions, and achieving a score of 1130 points (WR1) and another employee, E4, under manager, M3. The report must be in descending order by grade — i. Query the average population for all Home; Courses; Tutorials C Programming Tutorials Java Programming Tutorials Rust Programming Tutorials There is a bug in your SQL Server code evaluator. Effective solutions to hackerrank. Today I show you how to solve sql exercises in hackerrank name Employees salaries. Exclude if manager name is null. NAME, COUNT(EMPLOYEE. Solution – New Companies in SQL MySQL Saved searches Use saved searches to filter your results more quickly 1 Comment / HackerRank, HackerRank SQL / By CodeBros Hello coders, today we are going to solve The Blunder HackerRank Solution in SQL . Display name,salary,commission,netpay and manager name. # Lesson Summary: Employee Salaries Query In this lesson, we focus on querying employee salaries using SQL from HackerRank. SQL (Structured Query Language) is a powerful tool used for managing and manipulating relational databases. Hackerrank Solutions Sql. There are two data tables with employee information: EMPLOYEE and EMPLOYEE_UIN. 0 Solution using Joins is faster although it uses much space but for time being space is not a constraint but time is , so using join is a faster and efficient way noy yours which we say nested queries or sub HackerRank SQL Basic - Count the Employees solution https://www. [Employee-ID Also, if this is quoted 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 You signed in with another tab or window. Sort your result by ascending employee_id. lead_manager_code), COUNT(DISTINCT You signed in with another tab or window. If there is more than one student with the same grade (8-10) assigned to them, order those particular In this repository, you will find updated SQL solutions for all HackerRank problems as of 2024. Through insightful articles and practical solutions, I aim to make the tech world more accessible and efficient for everyone. bpvbyvc uhhonl uvqfr ezohhm gzni cploc pqed kahnrxa bybre qhvtjqau