Independence Day Deal! Unlock 25% OFF Today – Limited-Time Offer - Ends In 00:00:00 Coupon code: SAVE25
Welcome to Pass4Success

- Free Preparation Discussions
Mail Us support@pass4success.com
Location PL
Mob_nav_barsMENU

Oracle Exam 1Z0-084 Topic 2 Question 33 Discussion

Actual exam question for Oracle's 1Z0-084 exam
Question #: 33
Topic #: 2
[All 1Z0-084 Questions]

Which Optimizer component helps decide whether to use a nested loop join or a hash join in an adaptive execution plan?

Show Suggested Answer Hide Answer
Suggested Answer: C

In an adaptive execution plan, the Optimizer makes runtime decisions between nested loop and hash joins using a statistics collector. The collector is a row source that collects statistics about the rows it processes and can adapt the plan based on the number of rows processed.


Oracle Database SQL Tuning Guide, 19c

by Doyle at Apr 30, 2025, 08:31 AM

Limited Time Offer

25%

Off

Get Premium 1Z0-084 Questions as Interactive Web-Based Practice Test or PDF

Contribute your Thoughts:

Submit Cancel
Nickie
2 days ago
Wait, is there an option for 'All of the above'? Because this optimizer stuff is like a magic trick - you never know which component is gonna pull the rabbit out of the hat!
upvoted 0 times
...
Rory
7 days ago
I believe it's A) Statistics Feedback because it provides information for the optimizer to make decisions.
upvoted 0 times
...
Doug
10 days ago
Hold up, what if it's A) Statistics Feedback? I remember something about that helping the optimizer learn from past executions.
upvoted 0 times
Winfred
5 days ago
I think you're right, A) Statistics Feedback does help the optimizer learn from past executions.
upvoted 0 times
...
...
Lai
25 days ago
I'm not sure, but I think it could also be E) Dynamic Statistics.
upvoted 0 times
...
Francine
27 days ago
Hmm, I'm gonna go with D) Automatic Reoptimization. That sounds like the one that can adapt the plan on the fly based on changing conditions.
upvoted 0 times
Ilene
6 days ago
I agree with you, D) Automatic Reoptimization seems like the best choice for adapting the plan based on changing conditions.
upvoted 0 times
...
Louis
8 days ago
I'm not sure, but I believe E) Dynamic Statistics could also help in deciding the join type.
upvoted 0 times
...
Maryann
17 days ago
I think B) SQL Plan Directives also plays a role in adaptive execution plans.
upvoted 0 times
...
...
Tricia
1 months ago
I agree with Carli, SQL Plan Directives help in deciding the join method.
upvoted 0 times
...
Janine
1 months ago
Nah, I'm going with B) SQL Plan Directives. That's the one that can override the optimizer's initial plan and force it to try a different approach.
upvoted 0 times
...
Carli
2 months ago
I think the answer is B) SQL Plan Directives.
upvoted 0 times
...
Elbert
2 months ago
I think it's gotta be E) Dynamic Statistics. That's the component that collects real-time stats to help the optimizer make better decisions, right?
upvoted 0 times
Stefany
18 hours ago
User 3: So, Dynamic Statistics helps with choosing between nested loop join or hash join.
upvoted 0 times
...
Zena
3 days ago
User 2: Yeah, Dynamic Statistics collects real-time stats for better decisions.
upvoted 0 times
...
Casey
6 days ago
User 1: I think it's gotta be E) Dynamic Statistics.
upvoted 0 times
...
...

Save Cancel
az-700  pass4success  az-104  200-301  200-201  cissp  350-401  350-201  350-501  350-601  350-801  350-901  az-720  az-305  pl-300  

Warning: Cannot modify header information - headers already sent by (output started at /pass.php:70) in /pass.php on line 77