[es] Generated Output
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Install the DailyDevTools extension — access all tools from your browser toolbar
What is Visual Schema Designer?
Designing a database schema visually is far more productive than writing DDL SQL by hand. DailyDevTools' Visual Database Designer lets you create tables, define columns with types and constraints, draw relationships (one-to-one, one-to-many, many-to-many), and generate the complete CREATE TABLE SQL for PostgreSQL, MySQL, or SQLite — all in an interactive drag-and-drop canvas.
How to use Visual Schema Designer
- 1Click Add Table to create a new table and give it a name
- 2Add columns by clicking the + button on each table: set name, data type, and constraints (PK, FK, NOT NULL, UNIQUE)
- 3Draw relationships by dragging from a column to the primary key of another table
- 4Click Export SQL to generate the complete DDL script with CREATE TABLE statements and foreign key constraints
Frequently asked questions
What database dialects are supported for SQL export?
The designer exports SQL for PostgreSQL, MySQL/MariaDB, and SQLite. Each uses slightly different syntax for data types, auto-increment (SERIAL vs AUTO_INCREMENT vs INTEGER PRIMARY KEY), and foreign key definitions.
Can I import an existing database schema?
Yes. Paste an existing CREATE TABLE SQL script and the designer will parse it and render the visual diagram automatically — useful for visualizing and editing inherited database schemas.
What is the difference between a one-to-many and many-to-many relationship?
One-to-many: one record in table A relates to many records in table B (one customer → many orders). Many-to-many: many records in A relate to many in B (many students ↔ many courses). Many-to-many requires a junction table (enrollments) with foreign keys to both tables.
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