DEXDataEngineerX
DATAENGINEERX / EDITOR LIVE

Code. Run. Learn.

Practice SQL and Python directly in your browser. Write, execute, inspect output, and iterate without leaving the editor.

SQL + Python run locally in your browser.
ENGINEERING EDITOR

One place to practice.

Pick a runtime, inspect the dataset, write code, run it, and validate the output.

Browser runtimeNo server required
DEXEditor
query.sqlSQLite
Ctrl/ CommentCtrlEnter Run
query.sqlUTF-8 · SQL
Ready
↳
Run your codeResults and execution output will appear here.
ENGINEERING LOOP

Write → Run → Validate.

The editor keeps the feedback loop short so practice feels closer to real engineering work.

01ExploreInspect tables, columns and runtime context.
→
02WriteTurn the requirement into clean code.
→
03RunExecute locally and inspect the output.
→
04ValidateRead the result, fix it, and repeat.
ONE EDITOR · MULTIPLE PATHS

SQL + Python live.
PySpark next.

SQL and Python share the same browser editor shell. PySpark remains an editable preview while its execution runtime is prepared.

SQLLIVESQLite browser runtime
PythonLIVEPython 3 · Pyodide runtime
PySparkSOONDataFrame workflows
KEEP BUILDING

Editor is where
systems become skills.

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