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I have two separate attribute tables, one contains information about fire and the other contains the size of the forest that fire is in. The Fire IDs are different as they are data from different years. How do I add the size of the fragment that Fire is associated with to the Fire data, I want to do this over thousands of fires and fragments?
When I zoom into the fire then the associated fragment pops up. The images show when I don't zoom in, and then when I do zoom in.
How do you combine the attribute tables? That depends on the data. You could do a Joint Attributes by Field Value if and only if these data share a primary key and a secondary key. You mention that the FIDs do correlate to the records you want to join but you do not mention the other attributes. Are there data in both tables that you can use to do a join? Fire names, dates, coordinates?
Do the data overlap spatially? If so, you can use the Join Attributes by Location tool. This operation may get messy depending on how many records overlap but you could always query your data to limit the joints (for example, query data from one year in both tables before joining). Look for Join Attributes by Location under the Vector menu - Data Management Tools.
