Freebase is a "free, open knowledge graph of 39 million people, places, and things." as far as i can tell, anyone can submit information, manually and/or automatically, to freebase. how does ...
In Lucidchart there is a great beta feature called 'Automated ERD Import' where you can import all tables, columns, constraints etc from a database. This is super useful as you can quickly build ERDs ...