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Oracle 1Z0-171 Exam Syllabus Topics:

Oracle Database 23ai SQL Associate Sample Questions:

Question 1

What is the primary purpose of a primary key in a relational database?

A. To establish relationships between tables
B. To sort data in ascending order
C. To store duplicate data in a table
D. To uniquely identify each record in a table

Question 2

What does the INTERSECT operator do in SQL?

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

Question 3

Which clause can be used with SET operators to sort the final result set?

A. HAVING
B. WHERE
C. GROUP BY
D. ORDER BY

Question 4

In a relational database, what is a foreign key?

A. A temporary key generated during query execution
B. A key that is used to establish a relationship between two tables
C. A unique identifier for a record in a table
D. A key used to sort data in a specific order

Question 5

What does the following query return?
SELECT ROUND(123.456, 1) AS rounded_value FROM dual;

A. 123.4
B. 124
C. 123.45
D. 123.5

Solutions: