Alibaba Exam ACA-Developer Topic 7 Question 43 Discussion

Actual exam question for Alibaba's ACA-Developer exam

Question #: 43
Topic #: 7

[All ACA-Developer Questions]

What are the benefits of creating indexes on PolarDB? (Number of correct answers: 2)

AImprove the query efficiency SELECT statements.

BImprove the efficiency of DML operations such as UPDATE.

CImprove the efficiency of DDL operations.

DReduce invalid data scanning.

Show Suggested Answer

Suggested Answer: A, B, C

by Corinne at Jul 09, 2023, 07:29 PM

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8 hours ago

I agree. It can also improve the efficiency of DML operations like UPDATE.

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2 days ago

Yes, that's correct. Indexes help speed up SELECT statements.

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3 days ago

I think creating indexes on PolarDB can improve query efficiency.

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