Question
I'm looking for a tool that allows me to create Database ERDs via text in similar way that http://www.websequencediagrams.com/ allows for creating sequence diagrams.
Solution
Try this one: http://slopjong.de/2011/02/26/whats-erviz/
Erviz, written by Mitsuru Kono, is a tool that makes it easy to create entity-relation models and the best thing it’s free!
OTHER TIPS
The only one I've found apart from Erwiz is a Haskell package called erd, which doesn't look as stale as Erwiz does (most recent commit about a month ago, versus 4 years). It works very similarly to Erwiz, converting files formatted like this:
[Person]
*name
height
weight
+birth_location_id
[Location]
*id
city
state
country
Person *--1 Location
into diagrams that look like this:
Licensed under: CC-BY-SA with attribution
Not affiliated with StackOverflow