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Oracle 1Z0-171 Exam Syllabus Topics:

Oracle Database 23ai SQL Associate Sample Questions:

1. What does the INTERSECT operator do in SQL?

A) Combines rows from two queries and includes all duplicates
B) Returns rows that are present in both queries
C) Combines all rows from two queries without any conditions
D) Returns rows from the first query that are not present in the second query

2. Which of the following SET operators combines results from two queries and removes duplicates?

A) UNION
B) MINUS
C) INTERSECT
D) UNION ALL

3. Which of the following is a valid reason to create a synonym?

A) To provide simplified and consistent access to an object
B) To automatically generate numeric values for a column
C) To enforce unique constraints on a table
D) To improve query performance

4. Which of the following best describes a relational database?

A) A database where all data is stored as key-value pairs
B) A database that organizes data hierarchically
C) A database that uses a tabular structure with rows and columns to represent relationships between data entities
D) A flat file system with no defined relationships between data

5. What does the following SQL query return?
SELECT employee_id, salary * 12 AS annual_salary FROM employees;

A) Salaries multiplied by 12 and stored in a new table
B) Only employees with salaries greater than 12
C) Employee IDs and their annual salaries
D) Monthly salaries of all employees

Solutions: