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Count the employees in sql hackerrank. Exclude if manager name is null.


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Count the employees in sql hackerrank You are viewing a single comment's thread. 2 days ago + 0 comments. shivanisingh1992. We use cookies to ensure you have the best browsing experience on our website. 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. Ansichten: 22. Explanation. In the sample database, Operations has 0 employees. Plan and track work Code Review. company_code select salary*months , count(*) from employee group by salary*months order by salary*months desc limit 1; 9. SELECT DEPARTMENT. FROM Employee: Specifies the table name from which to retrieve the data. eDeptId) From departments LEFT Join Employees on Departments. lead_manager_code)) AS lead_managers, COUNT(DISTINCT(s. Contribute to cholu6768/SQL-Hackerrank-Practice-Questions development by creating an account on GitHub. 8 hours ago + 0 comments. 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. Reload to refresh your session. 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. Easy. its in SQL. 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. 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. 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). employee_code) te from company c left join lead_manager lm on lm. Reference. There is one manager, M1 (Top Earners at 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. Write better code Hello coders, today we are going to solve Average Population HackerRank Solution in SQL. ID what? – Thom A. Python. 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. 0 rather than 2253, so it is marked as an incorrect answer. Area 1 - Basic SQL Queries. 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. Then print these values as space-separated integers. 3 min read · May 26, 2024--Listen. 2 years ago + 0 comments. company_code ,c. Worked !!!!! Select name from employee Where Salary > 2000 AND months < 10 Order By employee_id ASC. company_code,Company. Inside you will find the solutions to all HackerRank SQL Questions. Automate any workflow Codespaces. HackerRank. 4. Navigation Menu Toggle navigation. From my HackerRank solutions. There are 45 vacancies in this department. Tutorials IBM is analyzing how their employees are utilizing the Db2 database by tracking the SQL queries executed by their employees. employee_code)) AS employees FROM Company c JOIN Lead_Manager l ON c. Employee Names. lead_manager_code)AS count_lead_managers,COUNT(DISTINCT Employee. Kommentare: 0. Order your output how is your "GROUP BY 1,2 ORDER BY 1" working? can you explain its meaning? Find total number of employees. lead_manager_code Count the employees in SQL hackerrank github. Commented Jun 21, 2021 at 16:52. - 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. Sort by. company_code = l. Then print these . Solutions. YoungestEmployees. employee_code) FROM Company AS c INNER JOIN Lead_Manager AS l ON c. My sql hackerrank solutions. \. Advanced Select. */ LIMIT 1; I understood the first step where we are giving months*salary an alias which is earnings. senior_manager_code) AS Total Senior Manager, COUNT(DISTINCT M. The version in T-SQL I came up with: select c. lead_manager_code) as no_of_lead_manager, count (distinct s. Share. 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). company_code=c. SELECT every employee that has a higher salary than the AVERAGE of his department. SELECT c. 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. 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. The file with the employee details will be given as a command line argument when your script will run. 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. Skip to content . This is my first post on discussions. founder,COUNT(DISTINCT Employee. manager_code) AS Total Manager, COUNT(DISTINCT E. The ROUND function is used to round the average age to the nearest integer. lead_manager_code) tlm ,count(distinct sm. name, COUNT(c. You only need to fetch the DEPT_ID values from the EMP table and check if they are valid (i. lead_manager_code), COUNT (DISTINCT s. deptName,COUNT(Employees. Your code evaluator returns 2253. company_code = LM. Revising the Select Query II where LAT_N is the northern latitude and LONG_W is the western longitude. 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. The times that employees log in and out are recorded over the course of a month. NAME) FROM CITY C WHERE We use cookies to ensure you have the best browsing experience on our website. HackerRank SQL Problem Solving Questions With Solutions - rthway/HackerRank-SQL. 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. Expect questions that test your ability to retrieve, 317 efficient solutions to HackerRank problems. You want to have NULL there, if employee is still working, no need for 9999- stuff. Top Earners. mearajennifer. sql at master · marinskiy/HackerrankPractice. Write a query that prints a list of employee names (i. 6 years ago + 3 comments. Blog; Scoring; select all the employee in all departments which are having highest salary in that department. Revising Aggregations - The Count Function. Contribute to aghodke24/HackerRank-Sql-Advanced-questions development by creating an account on GitHub. e. Table of Contents. arpitasalaria201. She wants your help finding the difference between her miscalculation (using salaries with any zeros removed), and the actual average salary. Now, to your question about longest working employee. The objective is to generate data to populate a histogram that shows the number of unique SQL. (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. *,h. Order your output by ascending company_code. employee_code) as no_of_employee FROM Company c LEFT JOIN Lead_Manager l ON c. 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. You signed out in another tab or window. 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. DeptID is a foreign key to Department. founder, COUNT(DISTINCT LM. Home; 👨🏻‍💻 Profile; Prepare . manager_code)) AS managers, COUNT(DISTINCT(e. This is in Mysql. Submissions. Weather Observation Station 5 Query the two cities in STATION with the shortest and longest CITY names, as well as their respective lengths (i. 317 efficient solutions to HackerRank problems. Find and fix vulnerabilities Actions. On the basis of You signed in with another tab or window. 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. Solved. 170+ solutions to Hackerrank. - adminazhar/hackerrank-SQL-basic-skills-certification-test-solution. New Companies. Revising the Select Query I; 2. 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. MySQL; Problem. Then print these You can toss a subquery in your WHERE clause to find customers that have had sales today:. SELECT NAME FROM Contains solved queries for the Hackerrank SQL (Basic) Skills Certification Test 🎓. C# (Basic) JavaScript (Basic) SQL (Basic) Rest API (Intermediate) Powered by GitBook. founder, (SELECT Problem. 2 Jahrs vor. C1 Monika 1 2 1 2 C2 Samantha 1 1 2 2. Please read our cookie policy for SQL query to display employees records whose netpay is greater than any other employee. Status. : the name attribute) from the Employee table in alphabetical order. Query the average population for all 📚 SQL Interview Areas. 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. You switched accounts on another tab or window. company_code, c. If the End_Date of the tasks are consecutive, then they are part of the same project. SELECT name FROM Employee WHERE salary > 2000 AND months < 10 ORDER BY employee_id; Let me know if you have any questions. SELECT Company. 4 "What i am doing wrong?" AND LOCATIONS. manager_code) as no_of_manager, count (distinct e. - qanhnn12/SQL-Hackerrank-Challenge-Solutions. 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. founder, COUNT(DISTINCT(l. MySQL newbie: Query to find the name of each employee whose salary exceeds the average salary of all employees in his or her department . We define an employee's total earnings to be their monthly worked, and the maximum total earnings to be the maximum total Problem. I am using this: Select EmpID, Loc, Sum(timeinseconds/3600. 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. There is a bug in your SQL Server code evaluator. 10 Days of Javascript. piyushtawade. Please consider the two tables - Employee and Department. recency | 809 Discussions| Please Login in order to post a comment. Hackerrank . Problem. SELECT COUNT(CITY) — COUNT(DISTINCT CITY) FROM STATION ; X. company_code, c. deptId=Employees. sql. Published in JEN-LI CHEN My sql hackerrank solutions. Contribute to ejaj/SQL development by creating an account on GitHub. company_code LEFT JOIN Senior_Manager s Contribute to BlakeBrown/HackerRank-Solutions development by creating an account on GitHub. COUNT(*) AS employees_with_max_earnings: Counts the number of employees who have the maximum total earnings. company_code SELECT C. 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. 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. 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. */ 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. select c. Employee Salaries. You could calculate the date difference like A lesson that teaches you how to solve the following problem from the SQL section in HackerRank. Click here to see more codes for NodeMCU ESP8266 and similar Family. 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. 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. 0. --Generate a list of all employees who are less than 25 years old--first in order of NAME, then of ID, both ascending. */ COUNT(*) FROM Employee /*3. Solve Challenge. Write a PL/SQL program to count the number of employees in department 50 and check whether this department have any vacancies or not. Solution: select 39. Please read our In this post, we will be covering all the solutions to SQL on the HackerRank platform. 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. NAME, COUNT (EMPLOYEE. 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. Write better code with AI Security. This was curated after solving all 58 questions, and achieving a score of 1130 points (WR1) (DISTINCT man. */ GROUP BY earnings /*4. lead_manager_code) AS Total Lead Manager, COUNT(DISTINCT SM. senior_manager_code) as no_of_senior_manager, count (distinct m. 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. founder, count (distinct lm. 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. Firstly I would suggest to make that to_date DEFAULT NULL. Copy path. HackerRank concepts & solutions. T2, DepartmentID(primary key), DepartmentName. 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. Below is the code for it. manager_code) tmc ,count(distinct e. Sign in Product Actions. Count the Employees The data for the number employed at several famous IT companies is maintained in the COMPANY table. You signed in with another tab or window. 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. : number of characters in the name). SQL query for count employee gender [closed] Ask Question Asked 8 years, 8 months ago. On this page. Revising Aggregations - The Count Function . HackerRank SQL. Leaderboard. Basic Select. Here are common areas assessed in SQL interviews across data roles. 37 | Permalink. Contribute to RodneyShag/HackerRank_solutions development by creating an account on GitHub. Finally, the ORDER BY clause is used to sort the result set in ascending order based on the "ID" column. founder ,count(distinct lm. Contribute to BlakeBrown/HackerRank-Solutions development by creating an account on GitHub. SQL. 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. Understanding basic SQL queries is fundamental. CodeChef CodeSignal CSES HackerEarth HackerRank LeetCode StrataScratch Home. 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. with dat as ( select a. You signed in with another tab or window. Manage Contains solved queries for the Hackerrank SQL (Basic) Skills Certification Test 🎓. SELECT Ceiling(AVG(Salary) - AVG(CAST(REPLACE(Salary, '0', '') AS DECIMAL))) AS res from EMPLOYEES. Automate any workflow Packages. For example, Join over 23 million developers in solving code challenges on HackerRank, one of the best ways to prepare for programming interviews. Sign in Product GitHub Copilot. Then print these values as 2 space HackerRank SQL Problem Solving Questions With Solutions - rthway/HackerRank-SQL. founder, COUNT (DISTINCT l. company_code INNER JOIN Senior_Manager AS s ON l. recency | 486 Discussions| Please Login in order to post a comment. 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. Two ways no joins just subqueries and multiple joins SELECT DISTINCT C. Join over 23 million developers in solving code challenges on HackerRank, one of the best ways to prepare for programming interviews. Viewed 3k times -6 . Instant dev environments Issues. kumariofficalap1. 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. Click here to see more codes for Raspberry Pi 3 and similar Family. Amber's conglomerate corporation just acquired some new companies. 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. It is not currently accepting answers. So a LEFT OUTER JOIN should be used. 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. Samantha is interested in finding the total You signed in with another tab or window. This will help you in skill assessment test . Print the names of employees who earn more than $2000 per para mysql. 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. Return to all comments →. com) I am a beginner in SQL and couldn't understand the solution which was given /*1. Then print these Passing the HackerRank SQL Basic Certification is an excellent way to validate your SQL skills and showcase them to employers. hackerrank. Display name,salary,commission,netpay and manager name. RodneyShag. Stack Overflow. Then print these values as Problem. It is very important that you all first give it a try & brainstorm yourselves before having a look at the solutions. 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. Unsolved. Modified 8 years, 8 months ago. 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. senior_manager_code)AS count_senior_managers,COUNT(DISTINCT Q ue 1. Then you could replace the inner loop with dbms_output. Input Format COMPANY Name ID Contribute to RodneyShag/HackerRank_solutions development by creating an account on GitHub. 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. hacker_id, h. 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+). com Here's the code in SQL : SELECT DEPARTMENT. Leaderboard . manager_code), COUNT (DISTINCT e. Aggregation. Sample Solution: Table: Sample Output. founder, (SELECT COUNT(DISTINCT lead_manager_code) FROM Lead_Manager LM WHERE C. eDeptId Group By Solutions for all SQL challenges on HackerRank executed on MySQL and MS SQL Server. Medium. Write a query to print the IDs of the companies that have more than 10000 employees, in ascending order of ID. 9 months ago + 0 comments. 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. ID) AS COUNT_OF_EMPLOYEES_IN_THE_DEPARTMENT. shreyanshsaurav1. HackerRank is a platform for competitive coding. Exclude if manager name is null. Let us code and find answers to our given problems. challenge_id) AS cnt, ROW_NUMBER() OVER You signed in with another tab or window. Was this helpful? Certify; SQL (Basic) #1 SQL: Merit Rewards. */ SELECT (months*salary) as earnings, /*2. sort the output in descending order based on employee id column and fetch only the first 15 records. . We use cookies to Hello, There. senior_manager_code), COUNT (DISTINCT m. 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. Then print these SQL. Employee: EmployeeID Name DeptID Department: DepartmentID DeptName LocID Employee. The sum of all values in LAT This has been part of the SQL language for multiple decades. 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). 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. put_line(rpad('* ', i * 2, '* ')); And you don't have to code in uppercase :) Top Earners. Inhaltsverzeichnis Show. */ ORDER BY earnings DESC /*5. How to form a simple sql query for achieving result? Note: There may be two managers with same name. 0 | Permalink. Skills. WITH cte AS ( SELECT c. MySQL solution. Hard. 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. Preparation — New Companies. victoriaosuagwu. 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. 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. Display employee id, employee name, city, state, country,salary, active date, status, department name, manager name. NAME, COUNT (EMPLOYEE. The Employee table containing employee data for a company is described as follows:. This is the right query but in hacker rank its showing wrong output result but you getting this question try this query it works. MySQL----Follow. Linux Shell. 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. Solution: select Departments. 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. Here is the question: There are 2 tables, T1, the attributes are E_ID(primary key), E_Name, DpartmentID;. 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. 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. Weather Observation Station 2 . Input Format. I think the above query is correct, but it's wrong. 0) as Hours, Paydate, wageamt from Totals where loc = 'locID' and paycode IN (paycodenames) and date > (getdate()-21) Group by Effective solutions to hackerrank. If there is more than one Find total number of employees. https://www. Sql. SELECT CEILING(AVG(SALARY - CAST(REPLACE(CAST(SALARY AS VARCHAR(10)), '0', '') AS float))) FROM EMPLOYEES. – Gordon Linoff. 50%. Commented Jun 21, 2021 at 16:54. 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. Also, don't tag spam. Problem; Input Format; Solution – Average Population in SQL. This made for some measly salaries, good thing it was just a typo Unit - Hackerrank Activities - SQL. select salary*months as ingresos, count(*) from employee group by ingresos order by ingresos desc limit 1; Find total number of employees. In company C1, the only lead manager is LM1. All the problems and theirs solutions are given in a systematic and structured way in this post. Closed. 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. Ok | Prepare; Certify; Compete; Apply; Hiring developers? Log In; Sign Up; Prepare. 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. Netpay=salary+commission. senior_manager_code)) AS senior_managers, COUNT(DISTINCT(m. For each employee, determine the number of hours worked during the weekends. Tutorials. SQL (Basic) SQL (Intermediate) SQL (Advanced) Difficulty. Query the following two values from the STATION table Find total number of employees. SELECT COUNT(DISTINCT C. 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. 3 days ago + 0 comments. Certify. company_code, C. company_code = 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. 8 years ago + 15 comments. sql at main · Pavith19/HackerRank-SQL-Challenges-Solutions Find total number of employees. Please read our You signed in with another tab or window. With practice, understanding common SQL challenges, and mastering fundamental count (distinct l. LEFT JOIN EMPLOYEE ON HackerRank SQL Basic - Count the Employees solution https://www. Then print these values as space Click here to see solutions for all Machine Learning Coursera Assignments. 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. Find and fix Contribute to aghodke24/HackerRank-Sql-Advanced-questions development by creating an account on GitHub. select name from employee order by name ; 0 | Permalink. 1. company_code SQL. The table has TimeinSeconds, WageAmount, EmpID, location and other information. Question(Click for link): Amber’s conglomerate corporation just acquired some Sql query to find the active employees. There are two senior managers, SM1 and SM2, under LM1. Please read our cookie policy for more information about how we use cookies. max/min/avg all are going to be same for this sub table. 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. : enclosed in parentheses). senior_manager_code) tsmc ,count(distinct m. employee_code) AS Total Employee FROM Company C LEFT JOIN Lead_Manager LM ON LM. ID) AS COUNT_OF_EMPLOYEES_IN_THE_DEPARTMENT. Amber’s conglomerate corporation just acquired some new companies. Print employee names. com practice problems using Python 3, С++ and Oracle SQL - marinskiy/HackerrankPractice. 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. lead_manager_code), count I have a problem about writing a SQL query on counting the number of employees. manager_code), COUNT(DISTINCT emp. 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. Discussions. select max (salary * months), count (salary * months) from employee where salary * months in (select max (salary * months) from employee); Q. Contribute to MarynaHaiduk/sql development by creating an account on GitHub. Like. If this video help you a little bit p Include departments with 0 employees. Skip to content. 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. company_code left join senior_manager sm on sm. Editorial. Host and manage packages Security. Q1. Hello coders, in this post you will get all the solution of HackerRank SQL Solutions. Swati Agrawal · Follow. This question needs details or clarity. Learn how to count the number of employees in a table using SQL on HackerRank. 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. 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. dlezo bcq kiwoi xiy mviwrt ptqg gkfvz cpbij yekcmrz fwitu