schema-design

Free, simple, and intuitive online database diagram editor and SQL generator.

⚡ A collection of resources and tutorials to design a better database schema.

ATTENTION: This repository is a clone of https://gitlab.structr.com/structr/structr. All development/issue tracking has moved there. | Structr is an integrated open-source low-code development and runtime environment that uses a graph database (Neo4j).

TypeDB Studio: An interactive visual environment for TypeDB

Schema-based Form Generator - Vue.js 2.0 Component based on Vuetify 2.0

PostgreSQL schema and Flask REST API for a cryptocurrency exchange: 22 tables spanning custody, markets, and order-book/OTC/P2P trade paths, with analytical queries and synthetic seed data.

Document your database schema, because your team will thank you, and a single text file makes it easy. Works well with PostgreSQL and others.

R package based on "Column Names as Contracts" blog post (https://emilyriederer.netlify.app/post/column-name-contracts/)

Database ER-diagram editor with a built-in MCP server — let Claude and other AI assistants design, edit, and export database schemas (SQL/DBML) in natural language. Self-hostable, Docker-ready.

Free, open-source ERD designer for browser, VS Code & Google Drive — with AI agent integration (MCP / Claude Code plugin). DDL export for 7 databases.

The multi-paradigm database expert for Claude Code — design a schema, audit it on two never-blended scores (Design & Integrity / Performance & Scale), and safely migrate. SQL · document · key-value · vector · time-series · graph. Works offline.

Self-healing multi-agent system using ontologies and MCP to automatically adapt when database schemas change

Hackolade(https://hackolade.com) plugin for OpenAPI 3 API documentation

Redstring is a semantic knowledge graph application that bridges human and machine intelligences through a recursive graph interface built on W3C Semantic Web standards with robust knowledge discovery. It uses RDF, OWL, and JSON-LD for decentralized, federated ontology creation like you've never seen before.

Generate database schema, documentation, and other artifacts from an Entity-Relationship diagram, which is created as a GraphML file using the yEd graph editor.

BigQuery Skills - Claude Code plugin that makes Claude a BigQuery expert. 5 skills covering query optimization, SQL generation, schema design, cost optimization, and BigQuery-specific features. Detects 11 anti-patterns, generates optimized SQL, designs schemas, and estimates costs.

Intelligent Schema Designer and Unstructured Data Parser

💎 Flexible, high performance IMDB & disk hybrid database written in Go. Features a brand-new modernistic query language and deep schema validation.

The complete free handbook for data engineering interviews. Covers SQL, Python, schema design, pipeline architecture, system design, and behavioral rounds. With study plans and 1400+ practice problems.

1400+ data engineering interview questions for 2026. SQL, Python, schema design, and pipeline architecture. Each question includes a runnable browser sandbox, what it tests, and the common trap.