PostgreSQL CE 8 Silver (PGCES-02) - PostSQL

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Sample PGCES-02 Exam Questions & Explanations

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Question #1 Verified Q&A
Select two suitable statements regarding the following SQL statement:<br />
CREATE TRIGGER trigger_1 AFTER UPDATE ON sales FOR EACH ROW EXECUTE PROCEDURE<br />
write_log();
A 'UPDATE' is not executed if "write_log" returns NULL.
B 'DROP TRIGGER trigger_1 ON sales;' deletes the defined trigger.
C It is defining a trigger "trigger_1".
D Every time 'UPDATE' is executed on the "sales" table, the "write_log" function is called once.
E The "write_log" function is called before 'UPDATE' takes place.
Correct Answer: 'DROP TRIGGER trigger_1 ON sales;' deletes the defined trigger., It is defining a trigger "trigger_1".
Question #2 Verified Q&A
Select two transaction isolation levels supported in PostgreSQL.
A PHANTOM READ
B SERIALIZABLE
C DIRTY READ
D READ COMMITTED
E REPEATABLE READ
Correct Answer: SERIALIZABLE, READ COMMITTED
Question #3 Verified Q&A
PostgreSQL can use an index to access a table. Select two incorrect statements about indexes.
A By creating an index, performance always improves.
B Creating an unused index does not affect the performance of a database at all.
C An index is created by 'CREATE INDEX', and deleted by 'DROP INDEX'.
D By using an index effectively, searching and sorting performs faster.
E There are B-tree, Hash, R-tree and GiST index types.
Correct Answer: By creating an index, performance always improves., Creating an unused index does not affect the performance of a database at all.
Question #4 Verified Q&A
Select two incorrect statements regarding 'DOMAIN'.
A A domain can be used as a column type when defining a table.
B To define a domain, both input and output functions are required.
C When defining a domain, you can add a default value and constraints to the original data.
D Domain is a namespace existing between databases and objects such as tables.
E A domain is created by 'CREATE DOMAIN'.
Correct Answer: To define a domain, both input and output functions are required., Domain is a namespace existing between databases and objects such as tables.
Question #5 Verified Q&A
Select two suitable statements regarding the data types of PostgreSQL.
A There is a non-standard PostgreSQL data type, called Geometric data type, which handles 2dimensional data.
B A large object data type can be used to store data of unlimited size.
C One field can handle up to 1GB of data.
D 'n' in CHARACTER(n) represents the number of bytes.
E Only the INTEGER type can be declared as an array.
Correct Answer: There is a non-standard PostgreSQL data type, called Geometric data type, which handles 2dimensional data., One field can handle up to 1GB of data.

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Our PGCES-02 (PostgreSQL CE 8 Silver) practice question bank currently includes 142 verified questions with comprehensive explanations.
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Yes, all PostSQL PGCES-02 practice questions are regularly updated and verified against current exam objectives.
Will the PGCES-02 practice questions help me pass on my first attempt?
The PGCES-02 (PostgreSQL CE 8 Silver) question bank is built to mirror the real exam's format and topics, with detailed explanations for every answer so you understand the reasoning — not just memorize responses.
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