Learn SQL

Embark on a fantasy coding adventure and master SQL offline!

Learn SQL: Code & Play Offline turns database learning into an interactive RPG quest. Forget boring syntax sheets—become a Database Squire, join the Coding Guild, write real SQL queries, and level up your skills to restore order to the Kingdom's data registers.

Whether you are a absolute beginner or an aspiring database administrator, our offline-first curriculum takes you from basic queries to advanced database operations.

🤖 BUILT-IN OFFLINE SQL COMPILER
No internet? No problem. The app features an embedded, full-featured SQLite database engine that runs entirely on your device. Execute queries, inspect database schemas, and get instant autograding feedback without needing any server connection or data plan.

🎮 GAMIFIED CODING QUESTS & XP
* Earn Experience Points (XP) for every correct query.
* Maintain your Daily Learning Streak to build consistent habits.
* Unlock legendary achievements and badges in your Guild Profile (from SQL Recruit to Query Archmage).
* Visual progression tracker keeps you motivated.

📚 BASICS TO ADVANCED SQL CURRICULUM (13 MODULES)
1. SELECT Basics: Learn to retrieve table records.
2. Filtering with WHERE: Conditional logical checks (AND, OR).
3. Sorting Results: Ascending and descending outputs (ORDER BY).
4. Limiting Outputs: Retrieve top-N rows (LIMIT).
5. Pattern Matching: Search strings using wildcards (LIKE '%').
6. Grouping & Aggregations: Summarize datasets (GROUP BY, SUM, AVG, COUNT).
7. Filtering Groups: Apply constraints to aggregations (HAVING).
8. Joining Quests: Query relationships across multiple tables (INNER JOIN).
9. Nested Subqueries: Nest query statements inside other operations.
10. Conditional Columns: Add logic branches (CASE WHEN ... THEN ... ELSE).
11. Set Membership: Query set records (IN operator).
12. Common Table Expressions: Write cleaner code using WITH CTE blocks.
13. Null Handlers: Set fallback values for missing data (COALESCE).

🛠️ FREE-PLAY SQL SANDBOX & REFERENCE DESK
* SQL Playground: Write and execute custom queries against the local database in a free-form sandbox console.
* Reference Desk: Quick-access cheat sheet containing explanation cards and syntax templates for SELECT, JOIN, aggregates, and more.

🔒 100% OFFLINE, SECURE, & AD-FREE
* Works completely offline—perfect for commutes, flights, or off-grid study sessions.
* No registrations, no data collection, no account requirements.
* Sleek neon-purple and teal visual theme optimized for mobile readability.

Start your database coding journey today. Download Learn SQL and code your way to mastery!