問題詳情

QUESTION 28To be callable from a SQL expression, a user-defined function must do what?
(A)Be stored only in the database.
(B)Have both IN and OUT parameters.
(C)Use the positional notation for parameters.
(D)Return a BOOLEAN or VARCHAR2 data type.

參考答案

答案：C
難度：非常簡單1
統計：A(0),B(0),C(1),D(0),E(0)