Deal of The Day! Hurry Up, Grab the Special Discount - Save 25% - Ends In 00:00:00 Coupon code: SAVE25
Welcome to Pass4Success

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

Alibaba Exam ACA-Operator Topic 6 Question 55 Discussion

Actual exam question for Alibaba's ACA-Operator exam
Question #: 55
Topic #: 6
[All ACA-Operator Questions]

When you use SQL statements to access tables in a database without an index configured, a full table scan will be performed. If a table contains a large amount of data, this kind of scan will access a large amount of data and consume a lot of the database's resources. Which of the following options are best practices when creating database indexes? (Number of correct answers: 3)

Show Suggested Answer Hide Answer
Suggested Answer: A, C, D

by Eladia at Mar 16, 2024, 02:09 PM

Limited Time Offer

25%

Off

Get Premium ACA-Operator Questions as Interactive Web-Based Practice Test or PDF

Contribute your Thoughts:

Submit Cancel
Mammie
9 months ago
Definitely, it can improve query optimization by using the correct index order.
upvoted 0 times
...
Jolene
9 months ago
I've heard that adhering to the rightmost prefix principle when using composite indexes is a good practice too.
upvoted 0 times
...
Isreal
10 months ago
That makes sense, it can speed up data retrieval.
upvoted 0 times
...
Luis
10 months ago
I believe applying indices to fields with many records can also be helpful.
upvoted 0 times
...
Mammie
10 months ago
Yes, that can definitely improve query performance.
upvoted 0 times
...
Isreal
10 months ago
I think adding an index to a field that is frequently queried is important.
upvoted 0 times
...
Lili
10 months ago
I think adding indexing to fields of fixed length can also be helpful in speeding up data retrieval.
upvoted 0 times
...
Reid
10 months ago
Yes, that's a good point. It helps in optimizing the search queries.
upvoted 0 times
...
Eladia
10 months ago
I believe we should also adhere to the rightmost prefix principle when using composite indexes.
upvoted 0 times
...
France
11 months ago
I agree with that. It will help improve the performance of the queries.
upvoted 0 times
...
Hyman
11 months ago
I think we should add an index to a field that is frequently queried but does not frequently perform add, delete, or modify operations.
upvoted 0 times
...

Save Cancel