How to give access to the code, but without access to the database?

Question

Angular

Greetings!
Such an introductory - there is a site on AngularJS. Backend in Java (Spring, HIbernate, PostgreSQL). Installed GIT from bitbucket.
It is necessary to make sure that the remote developer can edit everything, but does not have the opportunity to download the database. How is this possible?
From thoughts - just make a test copy of the site on the subdomain with a small part of the database. For work and tests. Are there more elegant solutions?

Answer 1

If I can edit the code on the server, then what can prevent me from dumping the database?
Use a separate database if you are afraid for the combat base.

Answer 2

usually in such a situation a new database with garbage data is made, there are even generators of such garbage data on the Internet.

Answer 3

Create a new schema in the database with a minimal set of data, create a new database user and give him rights to access this schema.