HackerRank

Placements You are given three tables: Students, Friends and Packages. Students contains two columns: ID and Name. Friends contains two columns: ID a

You are given two tables: Students and Grades.Students contains three columns ID, Name and Marks.Grades contains the following data:1) Ketty gives Eve

Link1) The total score of a hacker is the sum of their maximum scores for all of the challenges.2) Write a query to print the hacker_id, name, and tot

LinkJulia just finished conducting a coding contest, and she needs your help assembling the leaderboard!1) Write a query to print the respective hacke

Ollivander's Inventory Link Harry Potter and his friends are at Ollivander's with Ron, finally replacing Charlie's old broken wand. Hermione decide

LinkWe define an employee's total earnings to be their monthly $$salary \\times months$$ worked, and the maximum total earnings to be the maximum tota

LinkWrite a query to find the node type of Binary Tree ordered by the value of the node. Output one of the following for each node:Root: If node is ro