Match and Count values from two different columns and two different tables

[bblackwell3]

Hey all.  I am attempting to find matching text values in two different columns in two related tables in my model. Then, get a count of those "matches" . CPlatform and TPlatform is where I need to find and count the matches
Lets say table 1 is called "Full Data"

ID	CPlatform
34578	Que
36678	Azure
22480	Azure

table 2 is called "Platform Data"

ID	TPlatform
34578	Que
36678	Azure
22480	Azure

I would like have this new column be an actual column in one of the above tables

[bblackwell3]

FYI ID and the Platform are two seperate columns above