Genres are not all adding to ipod 7 on synching

Question

I am new to ipod nano.  I have downloaded music onto my pc using itunes.  I connected ipod and synched.  However not all genres eg easy listening appear on my ipod.  Please advise.

Answer 1

Hi,
You can do that with a HAVING clause:
select
  itemtype,
  sum (case monthname when 'JAN' then theval else 0 end) as JAN,
  sum (case monthname when 'FEB' then theval else 0 end) as FEB,
  sum (case monthname when 'MAR' then theval else 0 end) as MAR,
  sum (case monthname when 'APR' then theval else 0 end) as APR,
  sum (case monthname when 'MAY' then theval else 0 end) as MAY,
  sum (case monthname when 'JUN' then theval else 0 end) as JUN,
  sum (case monthname when 'JUL' then theval else 0 end) as JUL,
  sum (case monthname when 'AUG' then theval else 0 end) as AUG,
  sum (case monthname when 'SEP' then theval else 0 end) as SEP,
  sum (case monthname when 'OCT' then theval else 0 end) as OCT,
  sum (case monthname when 'NOV' then theval else 0 end) as NOV,
  sum (case monthname when 'DEC' then theval else 0 end) as DEC
from mytable
group by itemtype
HAVING      MIN (theval)     != 0
OR      MAX (theval)     != 0
order by itemtype
;If the values are all 0, then the MIN and the MAX will both be 0.
If either the MIN or the MAX is not 0, then the values are not all 0.
This assumes that the combination (itemtype, monthname) is unique, as it is in your sample data.
If that's not the case, start with a subquery that GROUPs BY itemtype, monthname, so that, when you get to the main query, that combination will be unique.