The FFCore hot folders can be configured to automatically make a CLI call when a file (any type of file) is dropped into the HF. The output of that script should be a file that FFCore understands.
If you can export a file from the MIS into a FFCore hot folder, you should be able to invoke a custom script to make the SQL query and generate a manifest (aka a CSV file) that FFCore would process for job submission.
If you are unsure about how to implement the above, I would suggest that you contact your Xerox analyst. They should point to resources that can help with this sort of thing.
Out MIS system is SQL based and doesn't use jdf. Is there a way i could submit a SQL statement or request in Freeflow?
I just need to pull out a size value from our database to use as a variable.