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Oracle 1Z0-171 Exam Syllabus Topics:

Oracle Database 23ai SQL Associate Sample Questions:

1. What type of join does the following query perform?
SELECT *
FROM employees e, departments d
WHERE e.department_id = d.department_id;

A) EQUI JOIN
B) OUTER JOIN
C) NATURAL JOIN
D) CROSS JOIN

2. What happens when a unique index is created on a table column?

A) The column can only contain NULL values.
B) The column values are automatically encrypted.
C) The column data type is converted to a primary key.
D) The column cannot contain duplicate values.

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

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

4. In a relational database, what is a foreign key?

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

5. Which SQL statement is used to insert a new row into a table?

A) SELECT
B) UPDATE
C) ALTER
D) INSERT

Solutions: