Write a query to get the sum or deposits and withdrawals for each user. This should be grouped by and ordered by name. If a user has no deposits or withdrawals, then the sum should be 0.

Please take this Codility test on your own time before [next Monday 6/29]. This includes 3 tasks testing SQL and basic Python knowledge. Please use the following link to access your test: https://lnkd ...

I sat down for a Codility SQL test as part of a hiring process at one of the biggest SG tech company(guess the name?)🥹. As someone who's been knee-deep in data for ...

Master core data structures and algorithms. Solve 100+ problems across Easy, Medium, and Hard difficulties. Simulate LeetCode and Codility test environments. Build confidence in optimizing code for ...