SQlite: Cannot find existing tables through terminal

Problem: I need to view my Sqlite database's content. So I have found a post were it is described how to connect to the device via terminal and open the database. The database was opened successfully. But when I run the command

.tables

it returns an empty list. So I gave another command a try:

 Select * from maschinenbase.db where type='table'

and I get:

...>

Question: How can I inspect my tables?

Note: I am quite sure that the tables exist because I can work with them through the app.