SAP ASE create new user with read permissions for entire database

Hi,

I was wondering if there is a simple command to create a new user for our DEV database, who will only have read permissions?

I created a user test, in the DEV database.But now I want to give it read access to the entire DEC database.
In the documentaton I can only find how to give the permission per table, but not for the entire database.

Best regards,

Menno