Why does some fusion tables have a integer ID, ex:
var tableid = 3186367;
and others have a string ID like the following:
var tableid = '1VlPiBCkYt_Vio-JT3UwM-U__APurJvPb6ZEJPg'
What's the difference between both?
The numeric ids are the old deprecated way of referencing the tables. The string id is the newer way. Numeric ids don't work in some cases.