Table/Source specific Refresh Schedule

Hi,

Assume the following scenario...

I have two tables...

Table 1: Stores historical data for the past 3 years up to last month.

Table 2: Stores data of the current month from 1st to Day-1.

Both columns have the same set of fields with the same data types. One point to note is that the source of Table 1 is SQL server DB and the source of Table 2 is a JSON document that I am fetching from Web that is converted to the same format as Table 1.

Is it possible to create a refresh schedule to refresh Table 1 at the beginning of every month and refresh Table 2 on a daily basis?

I will be using a UNION of these two tables for the reporting...