Learn SQL vs Python Starter

Open the case file. The evidence is in the database. Learn SQL for free through 100 authored leads and 10 complete investigations. Read the brief, inspect the schema, write a real query, and use the returned rows to prove what happened. Each lead gives you a question and a working dataset. Run your SQL, study the result, revise your approach, then verify the finding when the evidence fits. Every investigation is authored, so the clues, datasets, and conclusions belong to a complete case. WORK 100 AUTHORED LEADS Ten investigations take you from the foundations to advanced analysis: • SELECT, WHERE, ORDER BY, and LIMIT • COUNT, SUM, AVG, GROUP BY, and HAVING • INNER JOIN and LEFT JOIN • Subqueries and CASE expressions • Window functions and common table expressions BUILD PRACTICAL SQL JUDGEMENT • Turn a case objective into a query • Explore tables and relationships through the schema • Read returned rows instead of guessing from syntax • Use clear feedback to correct a failed investigation • Reopen filed leads and improve your solution START WHERE YOUR SKILLS FIT New to SQL? Begin with Case 001 and learn the query desk step by step. Already comfortable with the basics? Choose a later investigation and meet a harder set of evidence. Archie, your SQL Case Guide, can offer a focused hint when you are stuck. Academy field guides explain the underlying concepts, while the Skill Map shows how each investigation builds your SQL toolkit. THE CURRICULUM STAYS FREE All 100 authored leads and the complete SQL learning route are free. There is no subscription. Start without an account, and keep your learning progress and settings on your device. Analytics can be disabled in Settings. Query verification, Archie guidance, verification links, and purchase restoration require an internet connection. An optional one-time Supporter purchase helps fund future investigations. It never limits the curriculum. Your first case is waiting.

Python Starter is a focused coding and learning environment for beginners who want to learn Python by writing and running real code. Write Python programs, provide standard input, and view program output and exception tracebacks - all within the app. Python Starter includes CPython 3.14 and its standard library for local execution on iPhone and iPad. Your source code, input, run results, and program output are processed locally and are not uploaded to developer servers. Learn by Writing Code The included Python Basics course provides 20 free lessons in four sections covering: - Your first Python program, variables, numbers, and arithmetic - Decisions, comparisons, loops, and small programming projects - Functions, strings, lists, and dictionaries - List transformations, the standard library, sorting, searching, exceptions, and a final Grade Analyzer project Each lesson includes an explanation, example code, an editable exercise, expected output, and automatic local validation. A Practical Python Workspace - Write and edit a main.py source file - Run Python code locally on your device - Prepare standard input before running a program - Send input while a program is waiting and send EOF when finished - View program output, errors, and exception tracebacks - Stop programs or handle execution timeouts and excessive output - Save your work automatically - Duplicate, rename, delete, and restore projects with IDE Pro Private by Design - No account or login is required - Your code stays on your device - Source code, input, run results, and output are not uploaded - There is no cloud sync, remote execution, or cloud backup Python Starter includes one editable local workspace for free. Python Starter IDE Pro is an optional one-time purchase that unlocks multiple local projects and complete project management features. The iPhone and iPad runtime supports Python's standard library and the native extensions included with the app. Python Starter does not provide pip installation or guarantee compatibility with arbitrary third-party native wheels and packages. Whether you are writing your first script or practicing essential Python concepts, Python Starter provides a simple place to learn through code.