@wirelessmouse Depends on what that data actually is :P but there's a lot of generic multi-user 'database' systems that just use the LAMP stack, I've used a number of them over the years, not sure what projects are still active, but they're out there.
If the data is of a specific type, depending on what it is, there might be a great solution already built.
https://github.com/nuBuilder/nuBuilder-4.5 stuff like this exists, there's tons of them out there, some complex, some /super/ simple.
@wirelessmouse Tell you what.
PHPMyAdmin.
Its literally rows and columns, you can double click, copy/paste, its as basic as possible and it runs everywhere on everything :P