Is there an aggregate or-bit function?

Question

Below is a simple example of what I am trying to do.
select sum(part) from PARTS where roleID=4; PARTS table has two attributes:
part (bitPattern)
role_ID
part is a bitPattern, so instead of using “sum”, use an aggregate or-bit function.
Is there an aggregate or-bit function?
Thank you.

Answer 1

From Oracle 9.2 you can use the following
Anton
create or replace type bit_type as object
  total number,
  static function ODCIAggregateInitialize( sctx in out bit_type )
  return number,
  member function ODCIAggregateIterate
    ( self in out bit_type
    , value in number
  return number,
  member function ODCIAggregateTerminate
    ( self in bit_type
    , returnValue out number
    , flags in number
  return number,
  member function ODCIAggregateMerge
    ( self in out bit_type
    , ctx2 in bit_type
  return number,
create or replace function bit_or_agg( value in number )
return number
parallel_enable aggregate using bit_type;
create or replace type body bit_type
is
  static function ODCIAggregateInitialize( sctx in out bit_type )
  return number
  is
  begin
    sctx :=  bit_type( 0 );
    return ODCIConst.Success;
  end;
  member function ODCIAggregateIterate
    ( self in out bit_type
    , value in number
  return number
  is
  begin
    self.total := self.total + value - bitand( self.total, value );
    return ODCIConst.Success;
  end;
  member function ODCIAggregateTerminate
    ( self in bit_type
    , returnValue out number
    , flags in number
  return number
  is
  begin
    returnValue := self.total;
    return ODCIConst.Success;
  end;
  member function ODCIAggregateMerge
    ( self in out bit_type
    , ctx2 in bit_type
  return number
  is
  begin
    self.total := self.total + ctx2.total - bitand( self.total, ctx2.total );
    return ODCIConst.Success;
  end;
end;
/