PROFESSIONAL-CLOUD-DATABASE-ENGINEER · Question #187
PROFESSIONAL-CLOUD-DATABASE-ENGINEER Question #187: Real Exam Question with Answer & Explanation
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Question
You are migrating your on-premises PostgreSQL database to Spanner. You need to identify a solution for handling existing integer-based table primary keys. You want minimal changes to the applications while also following Google-recommended practices. What should you do-
Options
- AUse application generated sequential integer values as primary keys.
- BUpdate default primary key values to max(primary_key) + 1.
- CUse a UUID function that generates UUID Version 4 values as primary keys.
- DGenerate values by using BIT_REVERSED_POSITIVE sequences.
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