iPhone: Is it possible outside of jail breaking an iPhone device to access cache.db?
It's possible with iFunbox and iExplorer to view root files, but neither helps you edit them. It offers a sand-boxed version of iOS filesystem. You won’t be able to make any hard changes on your device without a proper jailbreak.

By default, the iOS is jailed. And jailbreaking removes the jailed status and allow us the full view of iOS filesystem with applications like iFunBox.

Here is iExplorer if you want to give it a try.

https://macroplant.com/iexplorer