(D:/Yada.SQLite - database on a "spinner"):
   the code took:789 wallclock secs ( 6.38 usr + 17.17 sys = 23.55 CPU)
(C:/Yada.SQLite - database on a 'SSD'): 
   the code took:101 wallclock secs ( 3.70 usr + 16.78 sys = 20.49 CPU)
(RAM drive - database on a 10 gig RAM drive) 
   the code took: 14 wallclock secs ( 2.89 usr +  9.47 sys = 12.36 CPU)