Free Oracle 1Z0-006 Exam Questions

Become Oracle Certified with updated 1Z0-006 exam questions and correct answers

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Total 352 Questions | Updated On: Feb 18, 2026

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Question 1

Which keyword is used to join two or more tables in a SQL statement?

A : JOIN

B : INNER JOIN

C : CROSS JOIN

D : UNION

Answer: A

Question 2

Which of the following is NOT typically included in a physical data model?

A : Data type specifications for attributes

B : Tables and columns

C : Entity-relationship diagrams

D : Primary and foreign key constraints

Answer: C

Question 3

Which keyword is used to retrieve data from specific columns in a SELECT statement?

A : FROM

B : WHERE

C : SELECT

D : GROUP BY

Answer: C

Question 4

What is the purpose of denormalization in the physical model?

A : To define relationships between tables

B : To optimize database performance

C : To reduce data redundancy and inconsistency

D : To enforce data integrity constraints

Answer: B

Question 5

Which SQL statement is used to add a new column to an existing table?

A : DELETE FROM

B : UPDATE

C : ALTER TABLE

D : INSERT INTO

Answer: C

Page: 1 / 71

Total 352 Questions | Updated On: Feb 18, 2026

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