Free Oracle 1Z0-006 Exam Questions

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

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Total 412 Questions | Updated On: May 23, 2026

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Question 1

Which Entity Relationship Diagram (ERD) attribute will become the primary key of a table?

A : composite key

B : parent/child relationship

C : foreign key

D : not null constraint

E : unique identifier

F : check constraint

Answer: E

Question 2

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 3

What is a foreign key in a relational database?

A : A primary key from another table

B : A key used to establish relationships between tables

C : A key that can have duplicate values

D : A constraint that ensures data integrity

Answer: B

Question 4

Which Entity Relationship Diagram (ERD) attribute will become the primary key of a table?

A : composite key

B : parent/child relationship

C : foreign key

D : not null constraint

E : unique identifier

F : check constraint

Answer: E

Question 5

In your database, the EMPLOYEE table has a unique EMPLOYEE ID column, which is assigned by the system and generated sequentially.What do you call this type of unique identifier?

A : barred primary key

B : artificial identifier

C : candidate unique identifier

D : a natural identifier

E : foreign key identifier

Answer: B

Page: 1 / 83

Total 412 Questions | Updated On: May 23, 2026

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