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🚀 The PVC Framework — Prompt, Validate, Communicate. The new standard for how data analysts work with AI without losing accuracy, trust, or their value to an organization.
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📊 Database Loader
Current Database: PixelMetrics
📂 Database Schema
No database loaded.
WSDA SQL Editor
🤖 Walter AI Feedback
Feedback will appear here after review.
About This Tool

The WSDA SQL Editor is your free, AI-enhanced platform for practicing SQL skills.

🗄️ Practice Databases

Load the PixelMetrics database used in Walter's LinkedIn Learning course, or the Digital Evidence database for forensic SQL practice. Upload your own .db file too.

🤖 Walter AI Feedback

Write a query and click Review My Query to get real-time, encouraging feedback from Walter AI — covering correctness, style, and improvement tips.

📤 Export Your Work

Export your SQL query as a .sql file or download your results as a .csv file. Build a portfolio of your SQL work as you learn.

🚀 Ready to take SQL further in the AI era?

PVC Practitioner is Walter's new professional tool — connect your own database, validate AI-generated queries, and communicate findings to stakeholders. The new standard for data analysts working alongside AI.

Try PVC Practitioner →