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Oracle 1Z1-171 Exam Syllabus Topics:

Oracle Database 23ai SQL Associate Sample Questions:

1. Which statement can be used to undo changes made in a transaction?

A) MERGE
B) ROLLBACK
C) COMMIT
D) SAVEPOINT

2. Which command revokes a user's privilege to update a table?

A) DELETE UPDATE ON table_name FROM user_name;
B) REVOKE UPDATE ON table_name FROM user_name;
C) REMOVE UPDATE ON table_name FROM user_name;
D) DENY UPDATE ON table_name FROM user_name;

3. Which operator can be used in a multiple-row subquery to match a single value to a list of values?

A) NOT NULL
B) EXISTS
C) IN
D) =

4. What is the result of using the following SQL query?
SELECT 100 + NULL AS result;

A) 0
B) NULL
C) 100
D) An error

5. How are NULL values treated in relational databases?

A) NULL values are treated as zero.
B) NULL values represent missing or unknown data.
C) NULL values are treated as empty strings.
D) NULL values are not allowed in relational databases.

Solutions: