For mocks, it's a good idea.
For the rest, even for a prototype, it seems a lot of trouble to insert, update and delete data.
For the rest, even for a prototype, it seems a lot of trouble to insert, update and delete data.
But on a(n only slightly) more serious note, maybe the data is generated outside of the web server. Different projects have different needs, but there are plenty of them that just need to serve some mostly static data.