Total Noob Custom Character Sheet Question

Hello there! I'm trying to set up a system based off of customized Pokemon statistics and whatnot, and while there are a few character sheets that try to do that, they don't have nearly the versatility that I am looking for. I have a database set up with all the info that I would ever need to make the character sheets, but is there any way for me to pull in data from an outside database? If not, is there any way to set up a database inside the Roll20 system? Thanks in advance for the help!

If not, is there any way to set up a database inside the Roll20 system The closest thing to a database you can achieve is to be a Pro subscriber and write a Javascript (API) importer from a text export from your database to "characters" and store the database information in abilities. This is the way I do store all my game specific rules data. It is a annoying and feels super-hacky, but at least it does work well. In the future we might get "custom companions" but I don't think we know very much specific about that yet.

Are you actually looking for different styles of character sheets within the same game? If so, Wandler is correct.  Or, are you looking for more data automation within a character sheet? For example, Attribute A's value impacts Attribute C's, X's and Y's values? If you are looking for that, then you can do that currently with Sheet Workers (limited scope JavaScript). However, to do that, you would need a customized sheet (or get an existing sheet to be updated. If you go the custom sheet route, then the host of the game of the game will need to be a Pro subscriber to have that feature.

I'm hosting the game, so I've been looking to at going Pro for quite some time, but I wanted to make sure that I would be able to do everything that I wanted to before doing so. I am certainly looking at a custom sheet, and I'm looking for a bit of both of what you described. For example, I want to be able to import a list of learnable moves, including power, usage, and other attributes for those moves. I then inside the sheet want to only show moves for which the pokemon is at a high enough level. There's a lot of data that I need to import, but luckily I really only need to access it when creating new characters.