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Oracle Quiz

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Oracle Quiz

This Online Oracle quiz test check the understanding on various topics on Oracle sql like Delete ,truncate, constraints, drop ,select,insert, Joins, outer join, Natural join ,indexes , profiles,Dictionary views, many more

The below test is randomized Oracle Quiz and select 15 questions from the set of many questions,so each time you try to attempt it, you will get different questions in different order and option would also be in different order, So it will be fun practicing with this tool. You can try as many times as you want till you feel comfortable about it. I will keep updating the set of questions to make you feel competitive and comfortable with Oracle

Instructions for online test

1.This quiz consists of 15 questions .It is recommended to complete the test in 30 min
2. It consists both single choice and more than  one choice questions to test your knowledge
3. You can press the submit button at the end of your test and get the final score
4.You will also get the know the correct choice after you finished the test.

1. Which statement about a self join is true?

Question 1 of 15

2. What function would you use to convert a numeric value into a VARCHAR2?

Question 2 of 15

3. What is another name for a simple join or an inner join?

Question 3 of 15

4. What is the purpose of a referential integrity constraint?

Question 4 of 15

5. What is the purpose of the USER_ set of data dictionary views?

Question 5 of 15

6. What is the purpose of the SUBSTR string function?

Question 6 of 15

7. Which ALTER statement would you use to add a primary key constraint on the emp_id column of the emp table?

Question 7 of 15

8. Select the command which is used for character by character substitution.

Question 8 of 15

9. A NATURAL JOIN is based on

Question 9 of 15

10. Evaluate the SQL statement
DROP TABLE DEPT;
Which four statements are true of the SQL statement?

Question 10 of 15

11. For which two constraints does the Oracle Server implicitly create a unique index?

Question 11 of 15

12. You create the emp table with the following command:

CREATE TABLE emp
(emp_no NUMBER(8)
CONSTRAINT emp-no-pk PRIMARY KEY,
emp_name NUMBER(8)
CONSTRAINT emp-name-nk NOT NULL);
Which index or indexes are created for the emp table?

Question 12 of 15

13. Which data dictionary view contains the definition of a view?

Question 13 of 15

14. What does the TRUNCATE statement do?

Question 14 of 15

15. What are the purposes of the SQLCODE and SQLERRM functions?

Question 15 of 15


 

I hope you like this Oracle MCQ quiz and it helps in your examination preparation. Best of Luck for the Oracle certification Examination. Please do provide feedback on it. We will also be adding more quizzes and questions in future.

Happy Learning!!!!

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https://en.wikipedia.org/wiki/Oracle_Database


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