coder000

Database schema reviewer

Paste your CREATE TABLE statements, get a design review that teaches — every finding explained and linked to the tutorial behind it. An honest reviewer, not a DBA: a fixed set of rules that catch the classic mistakes (missing primary keys, unindexed foreign keys, money in FLOAT), applied consistently. What it can't judge, it stays quiet about.

Free API — use it from your own tools

The same engine powers an open API (this page uses it too). No signup, no key — just a rate limit of 60 requests per minute per IP. Handy for CI checks that review migration scripts before they merge.

curl

curl -X POST https://www.coder000.com/api/v1/schema-review \
  -H "Content-Type: application/json" \
  -d '{"input": "CREATE TABLE patients (id int, full_name varchar(200))"}'

Response shape: { "output": "…", "notes": [...], "warnings": [...] } — the uniform coder000 tool response. output is the summary, warnings are real problems, notes are suggestions and observations, and each finding carries a change, an explanation, and a link to the tutorial behind the rule.

Learn the why, not just the what

This tool is the practical companion to our database design series.

The database design series Deciding attributes & keys Indexes explained T-SQL → PostgreSQL translator