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Oracle 1Z1-171 Exam Syllabus Topics:
| Section | Objectives |
|---|---|
| Topic 1: Relational Database Concepts | - Database fundamentals and relational model
|
| Topic 2: Advanced SQL Features | - Set operators and functions
|
| Topic 3: Data Definition Language (DDL) | - Schema objects
|
| Topic 4: Data Manipulation Language (DML) | - Insert, Update, Delete operations
|
| Topic 5: Retrieving Data Using SQL | - Joins and Subqueries
|
Oracle Database 23ai SQL Associate Sample Questions:
1. What does the following query return?
SELECT department_id FROM departments
INTERSECT
SELECT department_id FROM employees;
A) All department IDs from the departments table
B) Department IDs that exist only in the employees table
C) Department IDs that exist in both the departments and employees tables
D) All department IDs from the employees table
2. Which Oracle SQL function returns the current date and time, including time zone information?
A) CURRENT_TIMESTAMP
B) CURRENT_DATE
C) NOW
D) SYSDATE
3. What is a SELF JOIN in SQL?
A) A join that does not require a WHERE clause
B) A join of a table with itself
C) A join between tables with identical structures
D) A join used for Cartesian products
4. Which of the following data dictionary views provides information about constraints on tables?
A) All of the above
B) DBA_CONSTRAINTS
C) USER_CONSTRAINTS
D) ALL_CONSTRAINTS
5. How are NULL values treated in relational databases?
A) NULL values are treated as zero.
B) NULL values are not allowed in relational databases.
C) NULL values represent missing or unknown data.
D) NULL values are treated as empty strings.
Solutions:
| Question # 1 Answer: C | Question # 2 Answer: A | Question # 3 Answer: B | Question # 4 Answer: A | Question # 5 Answer: C |
