Item12245:Item12236:Item12737: merge multiple fixes

   * enhance handing of bind parameters (Foswiki:Main/FrankHoellering) 
   * cache bind values to be reused in =continue= mode (Foswiki:Main/FrankHoellering) 
   * fix oracle long column type (Foswiki:Main/HansJosefKoehler) 



git-svn-id: http://svn.foswiki.org/trunk/SqlPlugin@17256 0b4bb1d4-4e5a-0410-9cc4-b2b747904278