Database Schema Generator

Design database schemas visually and export as SQL or documentation

Database Type

Presets

Tables (2)

Relations (1)

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Schema Preview

users
idINTPK
emailVARCHAR(255)
nameVARCHAR(100)
created_atTIMESTAMP
posts
idINTPK
user_idINTFK
titleVARCHAR(255)
contentTEXT

Relationships

posts.user_id→users.id(many-to-one)

SQL Preview

-- Database Schema
-- Generated for MYSQL

CREATE TABLE users (
  id INT PRIMARY KEY AUTO_INCREMENT,
  email VARCHAR(255) NOT NULL UNIQUE,
  name VARCHAR(100) NOT NULL,
  created_at TIMESTAMP NOT NULL DEFAULT CURRENT_TIMESTAMP
);

CREATE TABLE posts (
  id INT PRIMARY KEY AUTO_INCREMENT,
  user_id INT NOT NULL,
  title VARCHAR(255) NOT NULL,
  content TEXT
);

ALTER TABLE posts
  ADD CONSTRAINT fk_posts_user_id
  FOREIGN KEY (user_id)
  REFERENCES users(id);

Database Design Best Practices

Normalize Your Data

Follow normalization rules to reduce redundancy. Aim for 3rd Normal Form (3NF) for most applications.

Use Meaningful Names

Table and column names should be clear and consistent. Use snake_case or camelCase consistently.

Define Relationships

Use foreign keys to maintain referential integrity. This prevents orphaned records and ensures data consistency.

Index Strategically

Add indexes on columns used in WHERE, JOIN, and ORDER BY clauses. Don't over-index as it slows writes.

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