hi,

  i'm not sure if this belongs here, but i cannot seem to find the
answer anywhere else.
  first, what's the difference between:

  PRIMARY KEY (key1, key2)
  PRIMARY KEY (key1), KEY (key2)

  second, let's suppose the following table:

  owner_id int(11),
  customer_id int(11),
  customer_info varchar(100)

  and i want to search either by owner_id and customer_id.
  can i do this w/o creating the indexes by hand? or do i have to
create'em explicity and specify which one i'm gonna use before
performing a query?
  if anyone can help me or point me to where i can find this kind of
stuff i'd appreciate it.
  thanks,

  f.-

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