I built visual execution tools for SQL and Python - here's why
Most coding education has a gap. You write a SQL query. You see the result. But between the query and the result, something happened - rows were scanned, filtered, joined, grouped, sorted. That pro...

Source: DEV Community
Most coding education has a gap. You write a SQL query. You see the result. But between the query and the result, something happened - rows were scanned, filtered, joined, grouped, sorted. That process is where the actual learning lives, and it's usually invisible. I built Qatabase to close that gap. SQL Flow Write any SQL query and SQL Flow will show you how it executes: Watch rows pass through WHERE filters See which rows match during a JOIN (and which don't) Watch groups form during GROUP BY Trace window function partitions and ordering It turns abstract concepts into something you can observe. Python Flow Same idea for Python: Variables update in real time as code runs Data structures (lists, dicts, sets) are visualized Call stacks are shown during recursion Algorithm behavior is animated (sorting, searching, graph traversal) The curriculum 40 courses. 1,000+ exercises. Everything is sequential. SQL (20 courses): First Steps through DDL/DML, covering joins, subqueries, window funct