OutSystems Tech Lead - DotNet Software Engineer interview questions

1. Consider there are three tables in sql like customer, order and products. Multiple sql query questions on selecting various data from 3 tables. Brushing up SQL skill will help to clear 2. Sting manipulation and array manipulation Data structure question to test the optimized coding 3. How do design a program to draw various shapes like circle , square and rectangle. How can a user click near by the edge and select a shape. They are looking for highly optimized object oriented approach.