Question 1

What is an online Visual ERD & Database Schema Designer?

Accepted Answer

An online Visual ERD (Entity-Relationship Diagram) Studio is an interactive visual canvas that lets database developers, software engineers, and students architect and model relational database structures. It helps you organize data entities, define column attributes, map relational keys, and compile clean SQL table schemas instantly.

Question 2

Which database platforms does this ERD compiler support?

Accepted Answer

SQLMarrow's ERD builder compiles standard relational SQL that is highly compatible with all major Relational Database Management Systems (RDBMS) including PostgreSQL, MySQL, SQLite, Microsoft SQL Server, and Oracle. You can export the generated scripts straight into your migrations.

Question 3

Can I generate realistic mock insert statements to test my database?

Accepted Answer

Yes! We designed our Visual ERD Studio to go beyond simple diagramming. With a single click on our 'Synthesize Mock Data' button, our engine reads your active table shapes and automatically creates transactional INSERT SQL statements preloaded with randomized names, decimals, and timestamps.

Question 4

How do I toggle primary keys and customize column data types?

Accepted Answer

Simply add a table, select 'Add Field' to append a column, and choose your SQL data types (like BIGINT, VARCHAR, TIMESTAMP, DECIMAL, or BOOLEAN) from the drop-down menu. To toggle a column as the Primary Key, click the gold key icon next to the field name. Our compiler automatically formats constraints like PRIMARY KEY.

Question 5

Is it secure to design corporate proprietary databases in this Visual Studio?

Accepted Answer

Absolutely. We care deeply about security. All database modeling, visual mapping, DDL schema generation, and mock transaction data synthesis execute entirely client-side inside your browser. No database credentials, schemas, or proprietary architectures are ever uploaded or transmitted to external servers.

ERD & Schema Builder

Compilation Engine