Alibaba ACA-Developer Exam - Topic 8 Question 11 Discussion

Actual exam question for Alibaba's ACA-Developer exam

Question #: 11
Topic #: 8

In PolarDB, if an UPDATE SQL statement encounters an issue, you need to check the execution plan to figure out the root cause. However, in the production environment, to avoid affecting the production data, what statement should you use to view the execution plan? (Number of correct answers: 2)

Aexplain SQL

Bexplain analyze SQL

Cexplain verbose SQL

Dexplain analyze verbose SQL

Show Suggested Answer

Suggested Answer: B, C

by Virgina at May 08, 2022, 10:29 PM

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Lawana

4 months ago

I disagree, A is too basic for serious troubleshooting.

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Judy

4 months ago

Wait, can you really use A in production? Sounds risky!

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Claribel

4 months ago

A is the best choice, but B gives more detail.

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Mari

4 months ago

I think C could be useful too, but not for this.

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Solange

5 months ago

Definitely A and B! Those are the go-tos.

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Veronika

5 months ago

Hmm, I'm a little unsure about this one. I know we need to use the Magento Cloud CLI, but I'm not 100% sure which specific command is the right one. I'll have to carefully read through the options.

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Barrett

5 months ago

Hmm, I'm a bit confused by some of these options. I'll need to review my notes on the valid DRM actions and the order of parameters to make sure I understand this properly.

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