DEVELOPEARL

https://www.hackerrank.com/challenges/occupations/problem?h_r=next-challenge&h_v=zen Occupations | HackerRank Pivot the Occupation column so the Name of each person in OCCUPATIONS is displayed underneath their respective Occupation. www.hackerrank.com Pivot the Occupation column in OCCUPATIONS so that each Name is sorted alphabetically and displayed underneath its corresponding Occupation. The o..

https://www.hackerrank.com/challenges/the-company/problem?h_r=next-challenge&h_v=zen New Companies | HackerRank Find total number of employees. www.hackerrank.com 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..

https://www.hackerrank.com/challenges/the-report/problem The Report | HackerRank Write a query to generate a report containing three columns: Name, Grade and Mark. www.hackerrank.com You are given two tables: Students and Grades. Students contains three columns ID, Name and Marks. Grades contains the following data: Ketty gives Eve a task to generate a report containing three columns: Name, Grad..

https://www.hackerrank.com/challenges/binary-search-tree-1/problem Binary Tree Nodes | HackerRank Write a query to find the node type of BST ordered by the value of the node. www.hackerrank.com You are given a table, BST, containing two columns: N and P, where N represents the value of a node in Binary Tree, and P is the parent of N. Write a query to find the node type of Binary Tree ordered by ..

https://www.hackerrank.com/challenges/the-pads/problem The PADS | HackerRank Query the name and abbreviated occupation for each person in OCCUPATIONS. www.hackerrank.com 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.e.: enclosed in parentheses). For exampl..

√https://www.hackerrank.com/challenges/weather-observation-station-19/problem Weather Observation Station 19 | HackerRank Query the Euclidean Distance between two points and round to 4 decimal digits. www.hackerrank.com Consider P1(a,c) and P2(b,d) to be two points on a 2D plane where (a,b) are the respective minimum and maximum values of Northern Latitude (LAT_N) and (c,d) are the respective mi..

https://www.hackerrank.com/challenges/weather-observation-station-18/problem Weather Observation Station 18 | HackerRank Query the Manhattan Distance between two points, round or truncate to 4 decimal digits. www.hackerrank.com Consider P1(a,b) and P2(c,d) to be two points on a 2D plane. happens to equal the minimum value in Northern Latitude (LAT_N in STATION). happens to equal the minimum valu..

https://www.hackerrank.com/challenges/revising-the-select-query-2/problem Revising the Select Query II | HackerRank Query the city names for all American cities with populations larger than 120,000. www.hackerrank.com Query the NAME field for all American cities in the CITY table with populations larger than 120000. The CountryCode for America is USA. The CITY table is described as follows: [풀이]..

https://www.hackerrank.com/challenges/revising-the-select-query/problem Revising the Select Query I | HackerRank Query the data for all American cities with populations larger than 100,000. www.hackerrank.com Query all columns for all American cities in the CITY table with populations larger than 100000. The CountryCode for America is USA. The CITY table is described as follows: [풀이] CITY 테이블에서 ..