you don't. you can only migrate which involves you giving your Pokemon from sapphire away to pearl and getting nothing in return.
No, you can only migrate Pokemon from sapphire to pearl
You can't.But you can trade Pokemon from Sapphire to pearl by Miagrating them over or sending them to Pal park
no. Saphire is generation 3 and pearl is generation 4
You can't. You can only get jirachi in ruby and sapphire. You would have to trade from ruby or sapphire.
you can trade between any 1st Gen (Red, Blue, Yellow) and any 2nd Gen (Gold, Silver and Crystal) you can also trade between any 3rd Gen (Ruby, Sapphire, Emerald, Fire Red, Leaf Green) and any 4th Gen (Diamond, Pearl, Platinum, Heart Gold, Soul Silver) to answer your question, yes, you can trade between... pearl and pearl? if you meant pearl and platinum, or perhaps pearl and HG/SS then also yes.
You have to trade or migrate it from Ruby, Sapphire or Emerald.
You have to trade from firered, leagreen, diamond, pearl, or platinum.
Trade them in from Ruby/Sapphire/Emerald.
get a national pokedex turn it off put sapphire in gba and pearl in ds then turnit on and it should be on pearls menu
trade it from platinum,daimend,pearl,soulsilver,heartgold
trade it over from emerald or ruby and Sapphire
there is not regice in pearl. but if you have ruby, emerald, or sapphire you could trade regice,regirock, and registeel to get rigigious.