I have to do a web application where I have to use ruby on rails. I have read some about it, but a partner told me something that I don't know if it is true. He told that creating a table of a data base ruby on rails, automatically creates two files html, one which shows the contents of you table and the other one, provides a html file to introduce data in your data base, is this true??
No, that's not true.
Your friend might have been thinking of the CRUD/scaffolding that Rails lets you add *if you want* that will do the above, but by default it doesn't happen unless you specifically tell it to.