- A
Convert each Oracle package to a PostgreSQL schema containing the procedures and functions as individual objects.
Schemas are the PostgreSQL equivalent of packages. Each package becomes a schema, and procedures become functions within that schema.
- B
Convert each package to a single PostgreSQL function containing all logic, using conditional logic to mimic overloaded procedures.
Why wrong: This would be complex and not recommended. Better to map to schemas.
- C
Keep the packages as is; PostgreSQL supports packages natively.
Why wrong: PostgreSQL does not support packages like Oracle. This is incorrect.
- D
Use Oracle compatibility mode in PostgreSQL to enable package support.
Why wrong: There is no Oracle compatibility mode in Cloud SQL PostgreSQL. This does not exist.
PCD Migrate Data Solutions Practice Question
This PCD practice question tests your understanding of migrate data solutions. Read the scenario carefully and evaluate each option against the stated constraints before committing to an answer. After answering, compare your reasoning against the explanation and wrong-answer breakdown below. Once you have made your selection, read the full explanation to reinforce the concept and understand why each distractor is designed to mislead on exam day.
An organization is migrating a large Oracle database to Cloud SQL for PostgreSQL using Ora2Pg. They have complex PL/SQL packages with overloaded procedures. What is the correct approach to handle these packages in PostgreSQL?
Answer choices
Why each option matters
Answer the question above first, then reveal the full breakdown to understand why each option is right or wrong.
Correct answer & explanation
Convert each Oracle package to a PostgreSQL schema containing the procedures and functions as individual objects.
PostgreSQL does not have packages. The recommended approach is to map each Oracle package to a separate schema containing the package's procedures and functions as top-level objects. Overloaded procedures can be handled by creating separate functions with different names or using default parameters. Ora2Pg can automate much of the conversion but manual review is needed.
Key principle: ACLs process entries top to bottom and stop at the first match. Entry order and interface direction matter as much as the permit or deny statement.
Answer analysis
Option-by-option breakdown
For each option: why learners choose it and why it is or isn't the right answer here.
- ✓
Convert each Oracle package to a PostgreSQL schema containing the procedures and functions as individual objects.
Why this is correct
Schemas are the PostgreSQL equivalent of packages. Each package becomes a schema, and procedures become functions within that schema.
Related concept
Standard ACLs match source addresses.
- ✗
Convert each package to a single PostgreSQL function containing all logic, using conditional logic to mimic overloaded procedures.
Why it's wrong here
This would be complex and not recommended. Better to map to schemas.
- ✗
Keep the packages as is; PostgreSQL supports packages natively.
Why it's wrong here
PostgreSQL does not support packages like Oracle. This is incorrect.
- ✗
Use Oracle compatibility mode in PostgreSQL to enable package support.
Why it's wrong here
There is no Oracle compatibility mode in Cloud SQL PostgreSQL. This does not exist.
Common exam traps
Common exam trap: ACLs stop at the first match
ACLs are processed top to bottom. The first matching entry wins, and an implicit deny usually exists at the end.
Detailed technical explanation
How to think about this question
ACL questions test precision: source, destination, protocol, port and direction. A generally correct ACL can still fail if it is applied on the wrong interface or in the wrong direction.
KKey Concepts to Remember
- Standard ACLs match source addresses.
- Extended ACLs can match source, destination, protocol and ports.
- The first matching ACL entry is used.
- There is usually an implicit deny at the end.
TExam Day Tips
- Check inbound versus outbound direction.
- Read the ACL from top to bottom.
- Look for a broader permit or deny above the intended line.
Key takeaway
ACLs process entries top to bottom and stop at the first match. Entry order and interface direction matter as much as the permit or deny statement.
Real-world example
How this comes up in practice
A media company stores terabytes of video archives that are accessed once a year for audit purposes. Moving these objects to a cold storage tier (Azure Archive, S3 Glacier, or Google Nearline) costs a fraction of hot storage. Questions like this test whether you understand storage tiers, access frequency tradeoffs, and retrieval latency requirements.
What to study next
Got this wrong? Here's your next step.
Review ACL processing order, placement rules (standard near destination, extended near source), and inbound vs outbound direction. Study wildcard masks and implicit deny. Then practise related PCD ACL questions on filtering logic and placement.
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Migrate Data Solutions — study guide chapter
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FAQ
Questions learners often ask
What does this PCD question test?
Migrate Data Solutions — This question tests Migrate Data Solutions — Standard ACLs match source addresses..
What is the correct answer to this question?
The correct answer is: Convert each Oracle package to a PostgreSQL schema containing the procedures and functions as individual objects. — PostgreSQL does not have packages. The recommended approach is to map each Oracle package to a separate schema containing the package's procedures and functions as top-level objects. Overloaded procedures can be handled by creating separate functions with different names or using default parameters. Ora2Pg can automate much of the conversion but manual review is needed.
What should I do if I get this PCD question wrong?
Review ACL processing order, placement rules (standard near destination, extended near source), and inbound vs outbound direction. Study wildcard masks and implicit deny. Then practise related PCD ACL questions on filtering logic and placement.
What is the key concept behind this question?
Standard ACLs match source addresses.
About these practice questions
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Last reviewed: Jul 4, 2026
This PCD practice question is part of Courseiva's free Google Cloud certification practice question bank. Courseiva provides original exam-style practice questions with explanations, topic-based practice, mock exams, readiness tracking, and study analytics to help learners prepare for the PCD exam.
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