Logical, Physical Design

Interactive Database Design

Master database architecture with hands-on ER modeling, normalization, and schema generation

Database Design Process

Follow the systematic approach to database design through interactive phases.

Phase 1: yaa Analysis

Define what data needs to be stored and how it will be used.

Phase 2: Conceptual Design (ER Model)

Create entities, attributes, and relationships based on yaa.

Phase 3: Logical Design

Convert ER model to relational schema and apply normalization.

Phase 4: Physical Design

Generate SQL DDL statements and optimize for performance.

Interactive ER Diagram Designer

Click "Add Entity" to start designing your database schema

Normalization Analysis

Current Normalization Status

Design your schema to see normalization analysis

Generated SQL Schema

-- Your SQL schema will appear here after designing entities

Design metrics

Entities: 0
relationships: 0
Attributes: 0
Normal Form: -

Key Design Principles

  • Entity Integrity: Each entity must have a primary key
  • Referential Integrity: Foreign keys must reference valid primary keys
  • Normalization: Eliminate redundancy and dependency issues
  • Performance: Balance normalization with query efficiency

Common Design Patterns

Quick Actions

Related Topics

ER Diagrams Normalization SQL Queries