Vendor: PostgreSQL-CE
Exam Code: PGCES-02
Exam Name: PostgreSQL CE 8 Silver
Certification: PostgreSQL-CE Certifications
Total Questions: 142 Q&A
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Updated on: Jun 14, 2026
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Select two suitable statements regarding the pg_dump command.
A. pg_dump is an SQL command.
B. Only the user who executed initdb can execute pg_dump.
C. pg_dump can create a backup while postmaster is running.
D. pg_dump can create a backup while postmaster is stopped.
E. pg_dump can create a backup of a specified table.
You want to set a constraint so that the "item_id" in the "sales" table will always have a value that already
exists as "id" in the "item_master" table. Select the correct SQL statement to fill in the underlined blank of
the "sales" table. Definitions:
CREATE TABLE item_master ( id INTEGER PRIMARY KEY, name TEXT );
CREATE TABLE sales ( sales_id INTEGER, item_id INTEGER, num INTEGER,
);
A. FOREIGN KEY (id) REFERENCES item_master (item_id)
B. FOREIGN KEY (item_id) REFERENCES item_master (id)
C. REFERENCES item_master (item_id)
D. REFERENCES item_master (id)
E. REFERENCES item_master (id) TO item_id
A set of tables are defined as follows: t1 t2 How many rows are returned by executing the following SQL statement? SELECT * FROM t1 WHERE EXISTS (SELECT name FROM t2 WHERE t1.id = t2.id);
A. 0 rows
B. 2 rows
C. 3 rows
D. 5 rows
E. 6 rows
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