💻
Programming
SQL And Databases
101
Cards
~51m
Study time
Advanced
Difficulty
Sample questions
- ▸What is a database?
- ▸What is a Relational Database Management System (RDBMS)?
- ▸What are the main types of databases?
- ▸What is SQL?
- ▸What are common SQL database dialects?
💻
Programming
Swift Programming
50
Cards
~25m
Study time
Advanced
Difficulty
Sample questions
- ▸What is an Optional in Swift?
- ▸How do you unwrap an Optional using if let?
- ▸What is the difference between Optional chaining and forced unwrapping?
- ▸What is the nil-coalescing operator in Swift?
- ▸What is an implicitly unwrapped optional?
VS
🤔 Which should you study first?
Both topics are in the Programming category, so they complement each other well. We suggest starting with the smaller deck to build momentum:
SQL And Databases
101 cards · ~51 min · Advanced
Swift Programming
50 cards · ~25 min · Advanced
⭐ Quicker to complete