proskillv2.0.0✓ verified

data-modeling

Design data models that make invalid states impossible — entities & relationships, normalization (1NF–3NF) vs deliberate denormalization, keys & indexing, relational vs document/NoSQL, OLTP vs OLAP, and schema evolution. Deep reference with SQL examples and a runnable schema linter.

$npx vanara install data-modeling

Included with Vanara Pro ($10/mo) — unlocks all 206 items. See pricing →

Overview

A good data model makes correct states easy and invalid states impossible. The schema is the one part of a system that is hardest to change later — application code is rewritten constantly, but a table that millions of rows and a dozen services depend on calcifies fast. Get the model right and most "hard" application bugs simply cannot be represented. This skill is the deep reference: the decision

What it covers

Details

Tier
Pro — $10/mo
Version
2.0.0
Depth
3 references · 2 examples · 1 runnable scripts
Verification
1/1 runnable checks passing
Runs on
Your own Claude Code — no API keys
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