-1

I'm revising for uni using mock questions and I'm wondering where I could find materials or information to answer this question or if someone could walk me through it?

Thanks

teezee
  • 1
  • 3
    StackOverflow is for solving reproducible specific programming issues - not general open ended "discuss..." questions. – samiles May 11 '17 at 14:29

1 Answers1

0

Ever hear of the "2-Phase Commit" algorithm? That's how they do it. Incidentally, I met the guy who has the patent on "2-Phase Commit"; he's an old-timer like me :).

Roger Cornejo
  • 1,507
  • 1
  • 8
  • 7
  • 1
    Actually it's one of the ways they do it. There's CDC, store-and-forward and of course, since 12cR2, sharding (dread word). – APC May 11 '17 at 15:41