Oracle Exam 1Z0-149 Topic 12 Question 24 Discussion

Actual exam question for Oracle's 1Z0-149 exam

Question #: 24
Topic #: 12

Which is true about counter variables in a FOR loop?

AIt must explicitly be declared.

BIt can be modified in the body of the loop.

CIt cannot be NULL.

DIt is accessible outside the body of the loop.

Show Suggested Answer

Suggested Answer: C

by Carin at Apr 21, 2024, 05:14 PM

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6 hours ago

What do you think about the question on counter variables in a FOR loop?

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11 days ago

That's correct. It must hold a valid value.

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12 days ago

But it can't be NULL, right?

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13 days ago

And you can definitely modify it within the loop.

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14 days ago

Yes, that's correct. It's usually initialized before the loop.

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15 days ago

I think the counter variable must be explicitly declared.

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