Traditional DSA Category (Arrays, Hash Maps, Heaps, Linked Lists, Tries, Graphs) Real-World Engineering Use Cases (Caching, Rate Limiting, Payment Deduplication, Background Workers, Distributed ...
+-----+-----+ | Column Name | Type | +-----+-----+ | id | int | | name | varchar | | salary | int | | managerId | int | +-----+-----+ id is the primary key (column ...