yea, mySQL databases does not need tokens.
Their digital tokens will be represented in USD and Euros primarily. For the time being these provide relatively stable forms of currency with low volatility(although the euro was more volatile than bitcoin week to week for the first 2.5 months 15' when it radically dropped in value) but just make sure you spend those currencies quickly as they aren't stable long term stores of value.
Not quite.
Banks, so far, are not trying to digitize currencies but titles which is pretty much the difference between Bitcoin the asset and their databases.