How to generate models from database structure existing

Question

There is some tool or application that take a backup/export (.sql file may be) of a database and can generate like result the entity-relation model, this mean, the tables in a graphic?

My database is in PostgreSQL, although this will should transparent?

Another question. In django, is possible generate the model entity relation from models in my project?

Answer 1

I don't know any working from the sql dump but from running postrgresql db schemaSpy works very well and easly

java -jar schemaSpy.jar -t dbType -db dbName [-s schema] -u user [-p password] -o outputDir

here an example of output