Count the employees in sql hackerrank. Preparation — New Companies.

Count the employees in sql hackerrank lead_manager_code) tlm ,count(distinct sm. manager_code) as no_of_manager, count (distinct e. 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. To print the IDs of the companies that have more than 10,000 employees in ascending order of ID, you can use the following SQL query: ```sql SELECT ID FROM companies WHERE employees > 10000 ORDER BY ID ASC; ``` Let me break down the query for you: 1. company_code left join senior_manager sm on sm. Hi, can you explain how you can replace a number In this HackerRank Functions in SQL problem solution, Amber's conglomerate corporation just acquired some new companies. company_code,Company. mearajennifer. There is a bug in your SQL Server code evaluator. Firstly I would suggest to make that to_date DEFAULT NULL. Leaderboard. name, COUNT(c. select c. manager_code) tmc ,count(distinct e. SQL Server and SQLite are completely different RBDMS and MySQLi is a PHP extension to interacting with MySQL You signed in with another tab or window. - qanhnn12/SQL-Hackerrank-Challenge-Solutions. Table:- create table employee_test (Id int , Name VARCHAR(100), Manager_Name varchar(100)); Input: ID NAME MANAGER_NAME -- ----- ----- 1 deep hari 2 mitra hari 3 hari kishan 4 kirti kishan 5 I have an attendance table for the employees like the following ID Employee-ID Date Coming-time Leaving-time Break(in hours) 1 1 2016-01-01 08:00:00 18: Skip to main content. Linux Shell. eDeptId Group By Solutions for all SQL challenges on HackerRank executed on MySQL and MS SQL Server. You signed in with another tab or window. Write a query that prints a list of employee names (i. If I wanted to check for everybody to have salary > 10000, your answer would be correct but I need AT LEAST two(ie, I have 4 employees in my department, 2 which have the salary greater than 10000 and another two with the salary smaller than 10000, this department_id is valid for what I need, and it is NOT MySQL solution-select (salary * months)as earnings ,count(*) from employee group by 1 order by earnings desc limit 1; Find the maximum amount of money earned by any employee, as well as the number of top earners (people who have earned this amount). com Here's the code in SQL : SELECT DEPARTMENT. The file with the employee details will be given as a command line argument when your script will run. Below is the code for it. employee_code)) AS employees FROM Company c JOIN Lead_Manager l ON c. Status. SELECT COUNT(CITY) — COUNT(DISTINCT CITY) FROM STATION ; X. Certify. 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. C# (Basic) JavaScript (Basic) SQL (Basic) Rest API (Intermediate) Powered by GitBook. Mow i want to count the number of employees in technology department, should i write as below? seriously, please read the entire question before answering. sql. Stack Overflow. select salary*months as ingresos, count(*) from employee group by ingresos order by ingresos desc limit 1; Find total number of employees. company_code), (SELECT COUNT(DISTINCT senior_manager_code) FROM The solutions of all the SQL challenges for all easy, medium and hard challenges on HackerRank executed on MySQL environment compiled. Solutions. Basic Select. New Companies. ID what? – Thom A. Click here to see more codes for NodeMCU ESP8266 and similar Family. On the basis of You signed in with another tab or window. Closed. SELECT DEPARTMENT. --Generate a list of all employees who are less than 25 years old--first in order of NAME, then of ID, both ascending. Here is a solution for ORACLE: SELECT * FROM (SELECT MAX(MONTHS*SALARY), COUNT(EMPLOYEE_ID) FROM EMPLOYEE GROUP BY MONTHS*SALARY ORDER BY MONTHS*SALARY DESC) WHERE ROWNUM = 1; Contribute to evan999/HackerRank-Test-Exercises development by creating an account on GitHub. Weather Observation Station 5 Query the two cities in STATION with the shortest and longest CITY names, as well as their respective lengths (i. Please read our cookie policy for SQL query to display employees records whose netpay is greater than any other employee. YoungestEmployees. lead_manager_code), COUNT (DISTINCT s. Input Format. deptName,COUNT(Employees. C1 Monika 1 2 1 2 C2 Samantha 1 1 2 2. employee_code) FROM Company AS comp, Lead_Manager AS lead, Senior_Manager AS sen, Manager AS man, Employee AS emp Find the maximum amount of money earned by any employee, as well as the number of top earners (people who have earned this amount). Here is the question: There are 2 tables, T1, the attributes are E_ID(primary key), E_Name, DpartmentID;. where employee_id is an employee's ID number, name is their name, months is the total number of months they've been working for the company, Hey guys I am learning sql now and I figured the best way is to write as many queries as I can. You only need to fetch the DEPT_ID values from the EMP table and check if they are valid (i. Generate the following two result sets: Query an alphabetically ordered list of all names in OCCUPATIONS, immediately followed by the first letter of each profession as a parenthetical (i. lead_manager_code)AS count_lead_managers,COUNT(DISTINCT Employee. */ ORDER BY earnings DESC /*5. COUNT(*) AS employees_with_max_earnings: Counts the number of employees who have the maximum total earnings. The sum of all values in LAT This has been part of the SQL language for multiple decades. Weather Observation Station 2 . kumariofficalap1. For example, Join over 23 million developers in solving code challenges on HackerRank, one of the best ways to prepare for programming interviews. : number of characters in the name). 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. SELECT COUNT(Department) FROM Employee Does anyone have any advise on how I can improve this query? ****Edit 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 Hacker Rank SQL. From my HackerRank solutions. With practice, understanding common SQL challenges, and mastering fundamental count (distinct l. Exclude if manager name is null. Count the Employees The data for the number employed at several famous IT companies is maintained in the COMPANY table. founder, (SELECT Problem. SELECT Company. 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. 4. https://www. com practice problems using Python 3, С++ and Oracle SQL - marinskiy/HackerrankPractice. founder, COUNT(DISTINCT(l. You could calculate the date difference like A lesson that teaches you how to solve the following problem from the SQL section in HackerRank. deptId=Employees. 2 Jahrs vor. founder, COUNT(DISTINCT LM. : enclosed in parentheses). . manager_code), COUNT (DISTINCT e. Copy path. Referencing the links above below is a summary - select months*salary as earnings, count(*) from employee group by earnings order by earnings desc limit 1; Link. company_code, C. Print employee names. 6 years ago + 3 comments. Preparation — New Companies. arpitasalaria201. 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. 0 rather than 2253, so it is marked as an incorrect answer. Then print these Passing the HackerRank SQL Basic Certification is an excellent way to validate your SQL skills and showcase them to employers. Hard. Find and fix Contribute to aghodke24/HackerRank-Sql-Advanced-questions development by creating an account on GitHub. If the End_Date of the tasks are consecutive, then they are part of the same project. Learn how to count the number of employees in a table using SQL on HackerRank. T2, DepartmentID(primary key), DepartmentName. MySQL----Follow. Contribute to BlakeBrown/HackerRank-Solutions development by creating an account on GitHub. Contribute to cholu6768/SQL-Hackerrank-Practice-Questions development by creating an account on GitHub. 317 efficient solutions to HackerRank problems. Each of the companies follows this hierarchy: Given the table schemas below, write a query to print the Our friend Samantha did not realize her 0 key was locked so she typed out the salaries in the employee table without the 0’s. company_code = l. Please read our You signed in with another tab or window. Revising Aggregations - The Count Function . Amber’s conglomerate corporation just acquired some new companies. 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. You want to have NULL there, if employee is still working, no need for 9999- stuff. Easy. Print the names of employees who earn more than $2000 per para mysql. The You have some syntax problems with your first queries: using local scoped aliases mis and act outside of scope; you don't need to set semicolon in with expression between arguments After digging in the Recursive Query was able to solve this problem. lead_manager_code)) AS lead_managers, COUNT(DISTINCT(s. Input Format COMPANY Name ID Contribute to RodneyShag/HackerRank_solutions development by creating an account on GitHub. Problem. We define an employee's total earnings to be their monthly worked, and the maximum total earnings to be the maximum total Problem. - adminazhar/hackerrank-SQL-basic-skills-certification-test-solution Skip to content Navigation Menu This repository contains solutions to all the HackerRank SQL Practice Questions - HackerRank-SQL-Challenges-Solutions/Basic Select/Employee Names. This will help you in skill assessment test . My sql hackerrank solutions. Sample Solution: Table: Sample Output. eDeptId) From departments LEFT Join Employees on Departments. Skills. Inhaltsverzeichnis Show. founder, count (distinct lm. lead_manager_code Count the employees in SQL hackerrank github. Then print these You can toss a subquery in your WHERE clause to find customers that have had sales today:. Skip to content. Submissions. victoriaosuagwu. */ LIMIT 1; I understood the first step where we are giving months*salary an alias which is earnings. 3 min read · May 26, 2024--Listen. Sql. Swati Agrawal · Follow. 1. MySQL; Problem. Let us code and find answers to our given problems. In the sample database, Operations has 0 employees. founder,COUNT(DISTINCT Analytic functions greatly help with a question like this, so I will offer a solution using MySQL 8+, which, moving forward, will be the likely database which a reader of your question would be using (and HackerRank will at some point also be using MySQL 8+). Inside you will find the solutions to all HackerRank SQL Questions. We start with the `SELECT` keyword, which specifies the columns we want to retrieve from the I am trying to get daily hours and wages from Totals table grouped by employee ID. Then print these . Automate any workflow Codespaces. Then print these values as 2-space 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 Post displaying HackerRank sql problem solving questions and solution. Area 1 - Basic SQL Queries. DeptID is a foreign key to Department. SELECT CEILING(AVG(SALARY - CAST(REPLACE(CAST(SALARY AS VARCHAR(10)), '0', '') AS float))) FROM EMPLOYEES. Write better code Hello coders, today we are going to solve Average Population HackerRank Solution in SQL. Sign in Product Actions. Then print these SQL. Join over 23 million developers in solving code challenges on HackerRank, one of the best ways to prepare for programming interviews. In the 2nd step we are Write a PL/SQL block to fetch the distinct department ids which is assigned to employees in the EMP table. - adminazhar/hackerrank-SQL-basic-skills-certification-test-solution. employee name: concatenate firstname & lastname with space character and fetch only first 10 letters from The Problem You are given a table, Projects, containing three columns: Task_ID, Start_Date, and End_Date. Click here to see more codes for Raspberry Pi 3 and similar Family. About; Products OverflowAI; Stack Overflow for Teams Where developers & technologists share private knowledge with coworkers; Advertising & Talent Join over 23 million developers in solving code challenges on HackerRank, one of the best ways to prepare for programming interviews. For each employee, determine the number of hours worked during the weekends. You signed in with another tab or window. Worked !!!!! Select name from employee Where Salary > 2000 AND months < 10 Order By employee_id ASC. com practice problems in C++, python and SQL - IhorVodko/Hackerrank_solutions The GROUP BY clause groups the employee_id and name from the m alias (managers), calculates the count of reports and the average age. shreyanshsaurav1. Revising the Select Query I; 2. : the name attribute) from the Employee table in alphabetical order. SQL. On this page. Your code evaluator returns 2253. SELECT every employee that has a higher salary than the AVERAGE of his department. Contribute to RodneyShag/HackerRank_solutions development by creating an account on GitHub. employee_code) te from company c left join lead_manager lm on lm. SELECT name FROM Employee WHERE salary > 2000 AND months < 10 ORDER BY employee_id; Let me know if you have any questions. Leaderboard . Explanation. Then print these values as Problem. You switched accounts on another tab or window. Also, don't tag spam. Kommentare: 0. Finally, the ORDER BY clause is used to sort the result set in ascending order based on the "ID" column. SQL (Basic) SQL (Intermediate) SQL (Advanced) Difficulty. Please read our In this post, we will be covering all the solutions to SQL on the HackerRank platform. RodneyShag. company_code = l. You are viewing a single comment's thread. Solve Challenge. Home; 👨🏻‍💻 Profile; Prepare . Top Earners. Manage Contains solved queries for the Hackerrank SQL (Basic) Skills Certification Test 🎓. 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 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. */ SELECT MAX(salary*months), COUNT(*) FROM employee WHERE salary The code 'group by' the total salary (months * salary) into a column and 'count' the respective employee who earns them. 0. Tutorials Exercises Certificates Services Menu Search field × Log in Sign Up ★ +1 My W3Schools Get Certified Spaces For Teachers Plus Get Certified Spaces For Teachers Plus My W3Schools. Amber's conglomerate corporation just acquired some new companies. SQL query for count employee gender [closed] Ask Question Asked 8 years, 8 months ago. GIPHY --Example: finding top 5 records from employee table select * from employee order by salary desc limit 5; --3> Write a SQL query to find the count of employees working in department 'Admin' select count (*) from employee where department = ' Admin '; --4> Write a SQL query to fetch department wise count employees sorted by department count in SELECT C. HackerRank concepts & solutions. 2 days ago + 0 comments. manager_code)) AS managers, COUNT(DISTINCT(e. Write a query to find the maximum total earnings for all employees as well as the total number of employees who have maximum total In this HackerRank Functions in SQL problem solution, Samantha was tasked with calculating the average monthly salaries for all employees in the EMPLOYEES table, but did not realize her keyboard's 0 Samantha was tasked with calculating the average monthly salaries for all employees in the EMPLOYEES table, but did not realize her keyboard's actual - miscalculated --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. Write a PL/SQL program to count the number of employees in department 50 and check whether this department have any vacancies or not. 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. Query the average population for all 📚 SQL Interview Areas. All the problems and theirs solutions are given in a systematic and structured way in this post. Automate any workflow Packages. select max (salary * months), count (salary * months) from employee where salary * months in (select max (salary * months) from employee); Q. company_code SQL. Return to all comments →. I am using this: Select EmpID, Loc, Sum(timeinseconds/3600. Revising the Select Query II where LAT_N is the northern latitude and LONG_W is the western longitude. com/challenges/name-of-employeesLearn @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. Write better code with AI Security. Medium. Instant dev environments Issues. 37 | Permalink. Contribute to aghodke24/HackerRank-Sql-Advanced-questions development by creating an account on GitHub. Sort by. Solution: select Departments. This is my first post on discussions. employee_code) AS Total Employee FROM Company C LEFT JOIN Lead_Manager LM ON LM. Now, to your question about longest working employee. (SELECT company_code,--lead_manager_code, senior_manager_code, manager_code COUNT (employee_code) AS emp FROM Employees GROUP BY 1) Find total number of employees. max/min/avg all are going to be same for this sub table. Employee Count in Each Department(Department wise) Write the SQL query to display the name of the department along with the count of employees working in it. The ROUND function is used to round the average age to the nearest integer. LEFT JOIN EMPLOYEE ON HackerRank SQL Basic - Count the Employees solution https://www. – Gordon Linoff. hacker_id, h. \. 3 days ago + 0 comments. */ SELECT (months*salary) as earnings, /*2. There is one manager, M1 (Top Earners at hackerrank. Then print these values as space Click here to see solutions for all Machine Learning Coursera Assignments. Table: employees-- commission, dep_id, emp_id, emp_name, hire_date, job_name, manager_id, salary; This is my query: SELECT The maximum earnings value is 69952. CodeChef CodeSignal CSES HackerEarth HackerRank LeetCode StrataScratch Home. 50%. company_code select salary*months , count(*) from employee group by salary*months order by salary*months desc limit 1; 9. This was curated after solving all 58 questions, and achieving a score of 1130 points (WR1) (DISTINCT man. 0) as Hours, Paydate, wageamt from Totals where loc = 'locID' and paycode IN (paycodenames) and date > (getdate()-21) Group by Effective solutions to hackerrank. Write a query to find the maximum total earnings for all employees as well as Here, we want to select only the rows where the number of employees in the company is greater than 10000. Display employee id, employee name, city, state, country,salary, active date, status, department name, manager name. Netpay=salary+commission. Plan and track work Code Review. FROM /* 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. Expect questions that test your ability to retrieve, 317 efficient solutions to HackerRank problems. WHERE monthly_salary * months_worked = (SELECT MAX(monthly_salary * months_worked) FROM Employee): Filters the rows where the product of monthly salary and Easy SQL (Intermediate) Max Score: 30 Success Rate: 94. How to form a simple sql query for achieving result? Note: There may be two managers with same name. In company C1, the only lead manager is LM1. senior_manager_code) as no_of_senior_manager, count (distinct m. The table has TimeinSeconds, WageAmount, EmpID, location and other information. 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. Modified 8 years, 8 months ago. This is in Mysql. Advanced Select. 0 | Permalink. If this video help you a little bit p Include departments with 0 employees. shivanisingh1992. Then print these values as 2 space-separated Employee Count in Each Department(Department wise) Write the SQL query to display the name of the department along with the count of employees working in it. HackerRank. SELECT c. recency | 486 Discussions| Please Login in order to post a comment. 2 years ago + 0 comments. Employee Salaries. lead_manager_code), count I have a problem about writing a SQL query on counting the number of employees. Skip to content . Please read our cookie policy for more information about how we use cookies. We use cookies to Hello, There. Query the following two values from the STATION table Find total number of employees. NAME, COUNT (EMPLOYEE. We use cookies to ensure you have the best browsing experience on our website. Write a query to print the IDs of the companies that have more than 10000 employees, in ascending order of ID. Display name,salary,commission,netpay and manager name. ID) AS COUNT_OF_EMPLOYEES_IN_THE_DEPARTMENT. NAME) FROM CITY C WHERE We use cookies to ensure you have the best browsing experience on our website. company_code = LM. Navigation Menu Toggle navigation. Share. Samantha is interested in finding the total You signed in with another tab or window. HackerRank SQL. The objective is to generate data to populate a histogram that shows the number of unique SQL. Sign in Product GitHub Copilot. SELECT count(*) /*count of transactions*/ FROM transactions WHERE /*Transactions in the last two months*/ transaction_date > DATEADD(mm, -2, GETDATE()) /*For customers that have had a sale today*/ customer_number in (SELECT customer_number Print the names of employees who earn more than $2000 per month and have worked at the company for less than 10 months. *,h. Ok | Prepare; Certify; Compete; Apply; Hiring developers? Log In; Sign Up; Prepare. Q1. Following link will certainly help with the syntax of DATEDIFF & this page will list all the others date related functions available in MariaDB's parent MySQL. Furthermore, it orders the table in DESC and filter the top result which constitute the maximum total salary and the number of employees who earn them. The only employee with earnings 69952 is Kimberly, so we print the maximum earnings value (69952) and a count of the number of employees who have earned 69952 Samantha was tasked with calculating the average monthly salaries for all employees in the EMPLOYEES table, but did not realize her keyboard’s 0 key was broken until after completing the calculation. 10: Weather Observation station 2: Note: This question is under the simple category, but I have included it nevertheless as it is weirdly framed and might be helpful to others. Instant dev environments A request to list "Number of employees in each department" or "Display how many people work in each department" is the same as "For each department, list the number of employees", this must include departments with no employees. Contribute to ejaj/SQL development by creating an account on GitHub. put_line(rpad('* ', i * 2, '* ')); And you don't have to code in uppercase :) Top Earners. Well organized and easy to understand Web building tutorials with lots of examples of how to use HTML, CSS, JavaScript, SQL, Python, PHP, Bootstrap, Java, XML and more. Reload to refresh your session. company_code LEFT JOIN Senior_Manager s Contribute to BlakeBrown/HackerRank-Solutions development by creating an account on GitHub. Please consider the two tables - Employee and Department. employee_code) FROM Company AS c INNER JOIN Lead_Manager AS l ON c. Order your output how is your "GROUP BY 1,2 ORDER BY 1" working? can you explain its meaning? Find total number of employees. Ansichten: 22. manager_code), COUNT(DISTINCT emp. Top Earners | Easy | HackerRank 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 Find the maximum amount of money earned by any employee, as well as the number of top earners (people who have earned this amount). 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. Reference. Find and fix vulnerabilities Actions. lead_manager_code) as no_of_lead_manager, count (distinct s. 170+ solutions to Hackerrank. Hackerrank problem as follows: 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. Tutorials. WITH cte AS ( SELECT c. This step-by-step tutorial will show you how to use the `COUNT()` function to get In this video You will get the solution for SQL sample test on HackerRank. Discussions. */ COUNT(*) FROM Employee /*3. Then you could replace the inner loop with dbms_output. senior_manager_code), COUNT (DISTINCT m. Find the professor who is paid SQL Problem Statement: 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. Commented Jun 21, 2021 at 16:52. Write a query to find the maximum total earnings for all The solutions of all SQL hackerrank challenges using MySQL environment - padhs/HackerRank-SQL-sol. There are 45 vacancies in this department. company_code, c. Revising Aggregations - The Count Function. select name from employee order by name ; 0 | Permalink. Solution: select 39. She wants your help finding the difference between her miscalculation (using salaries with any zeros removed), and the actual average salary. The above query counts all the managers of each table required by the problem in the employee table, but the employee table does not contain all the information. Here are common areas assessed in SQL interviews across data roles. Python. Solved. Unsolved. e. 10 Days of Javascript. It is not currently accepting answers. Two ways no joins just subqueries and multiple joins SELECT DISTINCT C. company_code INNER JOIN Senior_Manager AS s ON l. */ GROUP BY earnings /*4. This question needs details or clarity. MySQL newbie: Query to find the name of each employee whose salary exceeds the average salary of all employees in his or her department . company_code=c. I think the above query is correct, but it's wrong. Order your output by ascending company_code. its in SQL. Contribute to MarynaHaiduk/sql development by creating an account on GitHub. SELECT Ceiling(AVG(Salary) - AVG(CAST(REPLACE(Salary, '0', '') AS DECIMAL))) AS res from EMPLOYEES. Then print these values as 2 space HackerRank SQL Problem Solving Questions With Solutions - rthway/HackerRank-SQL. ID) AS COUNT_OF_EMPLOYEES_IN_THE_DEPARTMENT. Host and manage packages Security. senior_manager_code) AS Total Senior Manager, COUNT(DISTINCT M. manager_code) AS Total Manager, COUNT(DISTINCT E. It is very important that you all first give it a try & brainstorm yourselves before having a look at the solutions. Editorial. Last update on August 19 2022 21:51:35 (UTC/GMT +8 hours) Write a query to get the department name and number of employees in the department. You signed out in another tab or window. recency | 809 Discussions| Please Login in order to post a comment. Aggregation. SELECT NAME FROM Contains solved queries for the Hackerrank SQL (Basic) Skills Certification Test 🎓. founder,COUNT(DISTINCT Employee. Employee Names. Commented Jun 21, 2021 at 16:54. company_code SELECT C. This made for some measly salaries, good thing it was just a typo Unit - Hackerrank Activities - SQL. 9 months ago + 0 comments. Then print these values as space-separated integers. 8 years ago + 15 comments. founder, COUNT (DISTINCT l. 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. If there is more than one Find total number of employees. Understanding basic SQL queries is fundamental. Question(Click for link): Amber’s conglomerate corporation just acquired some Sql query to find the active employees. Tutorials IBM is analyzing how their employees are utilizing the Db2 database by tracking the SQL queries executed by their employees. For example: SELECT (months*salary) as earnings, COUNT(*) FROM Employee GROUP BY earnings ORDER BY earnings DESC LIMIT 1; Query the following two values from the STATION table: 1. company_code, c. Like. sql at main · Pavith19/HackerRank-SQL-Challenges-Solutions Find total number of employees. with dat as ( select a. DepartmentID How would one display a list of all departments (Department Names) and the number of employees in each department? The output should look like this: SQL. The Employee table containing employee data for a company is described as follows:. senior_manager_code)AS count_senior_managers,COUNT(DISTINCT Q ue 1. senior_manager_code) tsmc ,count(distinct m. company_code ,c. sql at master · marinskiy/HackerrankPractice. sort the output in descending order based on employee id column and fetch only the first 15 records. Hi, I am trying to write a solution for earnings of an employee problem, my solution is as below, can anyone correct my query, there are a lot of other solutions but I wanna know how to correct mine, thanks for any help. So a LEFT OUTER JOIN should be used. It is guaranteed that the difference between the End_Date and the Start_Date is equal to 1 day for each row in the table. name from ( select submission_date,min(hacker_id) mn from ( select @alex_b it is a very common observation to get confused between the syntaxes of the DATEDIFF & TIMESTAMPDIFF functions. Employee: EmployeeID Name DeptID Department: DepartmentID DeptName LocID Employee. 4 "What i am doing wrong?" AND LOCATIONS. lead_manager_code) AS Total Lead Manager, COUNT(DISTINCT SM. There are two senior managers, SM1 and SM2, under LM1. piyushtawade. The times that employees log in and out are recorded over the course of a month. Employee Details are stored in a file in the following format: EmpID;EmpName;Salary Write a shell script to find the count of employees whose salary is less than the average salary of all employees. Problem; Input Format; Solution – Average Population in SQL. This is the right query but in hacker rank its showing wrong output result but you getting this question try this query it works. NAME, COUNT (EMPLOYEE. Table of Contents. founder, (SELECT COUNT(DISTINCT lead_manager_code) FROM Lead_Manager LM WHERE C. senior_manager_code)) AS senior_managers, COUNT(DISTINCT(m. HackerRank is a platform for competitive coding. hackerrank. they exist in the DEPT table); you do not need to print any ids in the DEPT table that do not exist in the EMP table so using a FULL OUTER JOIN I need to list: count of employees under each manager. Viewed 3k times -6 . HackerRank SQL Problem Solving Questions With Solutions - rthway/HackerRank-SQL. challenge_id) AS cnt, ROW_NUMBER() OVER You signed in with another tab or window. FROM Employee: Specifies the table name from which to retrieve the data. 8 hours ago + 0 comments. SELECT COUNT(DISTINCT C. MySQL solution. Hackerrank . com) I am a beginner in SQL and couldn't understand the solution which was given /*1. employee_code) as no_of_employee FROM Company c LEFT JOIN Lead_Manager l ON c. founder ,count(distinct lm. The Employee table containing employee data for a company is described as follows: where employee_id is an employee's ID number, I am new to Sql query if I had a table called Employee: Id, Name, Department 1 tim sales 2 tom sales 3 jay HR 4 ben design 5 lin design I am trying to write a query that returns the number of employees in each department. Blog; Scoring; select all the employee in all departments which are having highest salary in that department. Published in JEN-LI CHEN My sql hackerrank solutions. My idea is building a temporary table t using subquery, which gives a product field tot_sal (Months * Salary), then extracting count(*), and Revising Aggregations - The Count Function Hackerrank Solution SQL*****IF You want code click Here : https://idiotprogramm About Press 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. Was this helpful? Certify; SQL (Basic) #1 SQL: Merit Rewards. The version in T-SQL I came up with: select c. This is my working code in MS SQL Server: SELECT CAST (CEILING (AVG (CAST (Salary AS Float))-AVG (CAST (REPLACE (Salary, 0, '') AS Float)))) AS INT) FROM EMPLOYEES; The Cast Funtion is to adapt the results to the Data Type expected in the Result Set. Hello coders, in this post you will get all the solution of HackerRank SQL Solutions. scj ewhgx bvstl ulxxpc uqvk pcuypbd ibvq pmbfc jfsg vlhruj