Machine-translated by Google. Questions are authored in English.
Top

Discussion

How many tables may be included with a join?

  • A.One
  • B.Two
  • C.Three
  • D.All of the above.

Answer: D

Correct answer: All of the above.

There is no limit in principle: a query may join as many tables as it needs, and reports joining half a dozen are commonplace. What rises with the count is the optimiser’s work in choosing an order, and the care needed to supply a condition for every pair.

No comment is present. Be the first to comment.
Loading…

Post your comment

Please log in or register to post a comment.