doSomeDatabaseWork().then(function(){
// Success
}).catch(Dexie.SchemaError, function (e) {
// Failed with SchemaError
console.error ("Schema error: " + e.message);
}).catch(Error, function (e) {
// Any other error derived from standard Error
console.error ("Error: " + e.message);
}).catch(function (e) {
// Other error such as a string was thrown
console.error (e);
});