OCP-052考试题库汇总（7）-CUUG内部解答版

Which is true about invalid PL/SQL objects?

A)They are automatically recompiled against the new definition of a referenced object when they are called.

B)They must be manually recompiled before they can be used if a DDL is performed on a table that is referenced in the PL/SQL object.

C)They are automatically recompiled against the new definition of a referenced object at the same time as the referenced object is modified.

D)They can be manually recompiled only by using SQL commands.

Answer: A

赵：

A 译：它们在被调用时根据引用对象的新定义自动重新编译。

B 译：如果在 PL/SQL 对象中引用的表上执行 DDL，则必须手动重新编译它们才能使用它们。