try it with variables:
Let Var_today= Today();
Let Nametable= ‘LOAD’ & $( Var_today);
$( Var_today) as Date_Today
Let Var_Store = $( Nametable) & ‘.qvd’ ;
store $( Nametable) into $(Var_Store);
With this you must generate a qvd per day with a date field.
Then you make a query to load with 'LOAD *' to read all
I hope you find it useful.