SQL QUIZ - 1

SQL > SQL QuizTake this 25-question, multiple-choice quiz to see if you have a good understanding of SQL. Questions 1-10 use the following table: Table BOOK_INFORMATION Column Name BOOK_ID BOOK_TITLE PRICE 1. Which SQL statement would you use to select all columns from the BOOK_INFORMATION table? a) SELECT BOOK_ID + PRICE FROM BOOK_INFORMATION; b) SELECT * FROM BOOK_INFORMATION; c) SELECT ALL FROM BOOK_INFORMATION; d) SELECT ALL COLUMNS FROM BOOK_INFORMATION; 2. Which SQL statement would you use to select all books that has a price higher than 20? a) SELECT BOOK_ID FROM BOOK_INFORMATION HAVING PRICE > 20; b) SELECT BOOK_ID FROM BOOK_INFORMATION ONLY PRICE > 20; c) SELECT BOOK_ID FROM BOOK_INFORMATION WHERE BOOK_ID > 20; d) SELECT BOOK_ID FROM BOOK_INFORMATION WHERE PRICE > 20; 3. Which SQL statement would you use to select all books whose title starts with 'A'? a) SELECT BOOK_ID, BOOK_TITLE FROM BOOK_INFORMATION WHERE BOOK_TITLE LIKE 'A'; b) SELECT BOOK_ID, BOOK_TITLE FROM BOOK_INFORMATION WHERE BOOK_TITLE IN 'A'; c) SELECT BOOK_ID, BOOK_TITLE FROM BOOK_INFORMATION WHERE BOOK_TITLE LIKE 'A%'; d) SELECT BOOK_ID, BOOK_TITLE FROM BOOK_INFORMATION WHERE BOOK_TITLE LIKE '%A'; 4. Which SQL statement allows you to sort all books by price, from the highest price to lowest price? a) SELECT BOOK_ID, BOOK_TITLE, PRICE FROM BOOK_INFORMATION ORDER BY PRICE DESC; b) SELECT BOOK_ID, BOOK_TITLE, PRICE FROM BOOK_INFORMATION SORT BY PRICE DESC; c) SELECT BOOK_ID, BOOK_TITLE, PRICE FROM BOOK_INFORMATION SORT BY PRICE ASC; d) SELECT BOOK_ID, BOOK_TITLE, PRICE FROM BOOK_INFORMATION ORDER BY PRICE ASC; 5. Which SQL statement allows you to insert the following piece of data into BOOK_INFORMATION?     BOOK_ID=20     BOOK_TITLE='1KEYDATA SQL TUTORIAL'     PRICE=15 a) ADD INTO BOOK_INFORMATION WITH (20,'1KEYDATA SQL TUTORIAL',15); b) INSERT INTO BOOK_INFORMATION USING (20,'1KEYDATA SQL TUTORIAL',15); c) INSERT INTO BOOK_INFORMATION VALUES (20,'1KEYDATA SQL TUTORIAL',15); d) ADD INTO BOOK_INFORMATION VALUES (20,'1KEYDATA SQL TUTORIAL',15); 6. Which SQL statement lets you remove the table BOOK_INFORMATION from the database? a) DROP BOOK_INFORMATION; b) DELETE TABLE BOOK_INFORMATION; c) TRUNCATE TABLE BOOK_INFORMATION; d) DROP TABLE BOOK_INFORMATION; 7. Which SQL statement would you use to delete the row for BOOK_ID=15? a) TRUNCATE TABLE BOOK_INFORMATION WHERE BOOK_ID = 15; b) DELETE FROM BOOK_INFORMATION WHERE BOOK_ID = 15; c) DROP BOOK_INFORMATION WHERE BOOK_ID = 15; d) TRUNCATE BOOK_INFORMATION WHERE BOOK_ID = 15; 8. Which SQL statement will you use to change the price for the BOOK titled 'ELEMENTARY SCHOOL GUIDE' to 20? a) UPDATE BOOK_INFORMATION SET PRICE = 20 WHERE BOOK_TITLE = 'ELEMENTARY SCHOOL GUIDE'; b) UPDATE TABLE BOOK_INFORMATION SET PRICE = 20 WHERE BOOK_TITLE = 'ELEMENTARY SCHOOL GUIDE'; c) UPDATE BOOK_INFORMATION CHANGE PRICE = 20 WHERE BOOK_TITLE = 'ELEMENTARY SCHOOL GUIDE'; d) UPDATE TABLE BOOK_INFORMATION SET PRICE = 20 WHERE BOOK_ID = 'ELEMENTARY SCHOOL GUIDE'; 9. Which SQL statement allows you to find the highest price from the table BOOK_INFORMATION? a) SELECT BOOK_ID, BOOK_TITLE, MAX(PRICE) FROM BOOK_INFORMATION; b) SELECT MAX(PRICE) FROM BOOK_INFORMATION; c) SELECT MAXIMUM(PRICE) FROM BOOK_INFORMATION; d) SELECT PRICE FROM BOOK_INFORMATION ORDER BY PRICE DESC; 10. Which SQL statement allows you to find all books priced between 15 and 20? a) SELECT BOOK_ID, BOOK_TITLE, PRICE FROM BOOK_INFORMATION WHERE PRICE IS BETWEEN 15 AND 20; b) SELECT BOOK_ID, BOOK_TITLE, PRICE FROM BOOK_INFORMATION HAVING PRICE IS BETWEEN 15 AND 20; c) SELECT BOOK_ID, BOOK_TITLE, PRICE FROM BOOK_INFORMATION WHERE PRICE BETWEEN 15 AND 20; d) SELECT BOOK_ID, BOOK_TITLE, PRICE FROM BOOK_INFORMATION HAVING PRICE BETWEEN 15 AND 20; Questions 11 - 15 uses the following table: Table SALES Column Name STORE_ID SALES_DATE SALES_AMOUNT 11. Which SQL statement lets you find the sales amount for each store? a) SELECT STORE_ID, SUM(SALES_AMOUNT) FROM SALES; b) SELECT STORE_ID, SUM(SALES_AMOUNT) FROM SALES ORDER BY STORE_ID; c) SELECT STORE_ID, SUM(SALES_AMOUNT) FROM SALES GROUP BY STORE_ID; d) SELECT STORE_ID, SUM(SALES_AMOUNT) FROM SALES HAVING UNIQUE STORE_ID; 12. Which SQL statement lets you list all stores whose total sales amount is over 5000? a) SELECT STORE_ID, SUM(SALES_AMOUNT) FROM SALES GROUP BY STORE_ID HAVING SUM(SALES_AMOUNT) > 5000; b) SELECT STORE_ID, SUM(SALES_AMOUNT) FROM SALES GROUP BY STORE_ID HAVING SALES_AMOUNT > 5000; c) SELECT STORE_ID, SUM(SALES_AMOUNT) FROM SALES WHERE SUM(SALES_AMOUNT) > 5000 GROUP BY STORE_ID; d) SELECT STORE_ID, SUM(SALES_AMOUNT) FROM SALES WHERE SALES_AMOUNT > 5000 GROUP BY STORE_ID; 13. Which SQL statement is the correct one to use to find the earliest date STORE_ID 10 had a sales amount greater than 0? a) SELECT MAX(SALES_DATE) FROM SALES WHERE STORE_ID = 10 AND SALES_AMOUNT > 0; b) SELECT SALES_DATE FROM SALES WHERE STORE_ID = 10 AND SALES_AMOUNT > 0; c) SELECT MIN(SALES_DATE) FROM SALES WHERE STORE_ID = 10 OR SALES_AMOUNT > 0; d) SELECT MIN(SALES_DATE) FROM SALES WHERE STORE_ID = 10 AND SALES_AMOUNT > 0; 14. Which SQL statement lets you find the total number of stores in the SALES table? a) SELECT COUNT(STORE_ID) FROM SALES; b) SELECT COUNT(DISTINCT STORE_ID) FROM SALES; c) SELECT DISTINCT STORE_ID FROM SALES; d) SELECT COUNT(STORE_ID) FROM SALES GROUP BY STORE_ID; 15. Which SQL statement allows you to find the total sales amount for Store ID 25 and the total sales amount for Store ID 45? a) SELECT STORE_ID, SUM(SALES_AMOUNT) FROM SALES WHERE STORE_ID IN (25,45) GROUP BY STORE_ID; b) SELECT STORE_ID, SUM(SALES_AMOUNT) FROM SALES GROUP BY STORE_ID HAVING STORE_ID IN (25,45); c) SELECT STORE_ID, SUM(SALES_AMOUNT) FROM SALES WHERE STORE_ID IN (25,45); d) SELECT STORE_ID, SUM(SALES_AMOUNT) FROM SALES WHERE STORE_ID = 25 AND STORE_ID = 45 GROUP BY STORE_ID; Questions 16-25 use the following table: Table EXAM_RESULTS STUDENT_ID FIRST_NAME LAST_NAME EXAM_ID EXAM_SCORE 10 LAURA LYNCH 1 90 10 LAURA LYNCH 2 85 11 GRACE BROWN 1 78 11 GRACE BROWN 2 72 12 JAY JACKSON 1 95 12 JAY JACKSON 2 92 13 WILLIAM BISHOP 1 70 13 WILLIAM BISHOP 2 100 14 CHARLES PRADA 2 85 16. What is the result of the following SQL statement: SELECT COUNT(DISTINCT STUDENT_ID) FROM EXAM_RESULTS; a) 3 b) 4 c) 5 d) 6 17. What SQL statement do we use to find the average exam score for EXAM_ID = 1? a) SELECT AVG(EXAM_SCORE) FROM EXAM_RESULTS; b) SELECT AVG(EXAM_SCORE) FROM EXAM_RESULTS WHERE EXAM_ID = 1; c) SELECT AVG(EXAM_SCORE) FROM EXAM_RESULTS GROUP BY EXAM_ID; d) SELECT COUNT(EXAM_SCORE) FROM EXAM_RESULTS WHERE EXAM_ID = 1; 18. Which SQL statement do we use to find out how many students took each exam? a) SELECT COUNT(DISTINCT Stduetn_ID) FROM EXAM_RESULTS GROUP BY EXAM_ID; b) SELECT EXAM_ID, MAX(STUDENT_ID) FROM EXAM_RESULTS GROUP BY EXAM_ID; c) SELECT EXAM_ID, COUNT(DISTINCT STUDENT_ID) FROM EXAM_RESULTS GROUP BY EXAM_ID; d) SELECT EXAM_ID, MIN(STUDENT_ID) FROM EXAM_RESULTS GROUP BY EXAM_ID; 19. What SQL statement do we use to print out the record of all students whose last name starts with 'L'? a) SELECT * FROM EXAM_RESULTS WHERE LAST_NAME LIKE 'L%'; b) SELECT * FROM EXAM_RESULTS WHERE LAST_NAME LIKE 'L'; c) SELECT * FROM EXAM_RESULTS WHERE LAST_NAME = 'L'; d) SELECT * FROM EXAM_RESULTS WHERE LAST_NAME <> 'L'; 20. What is the result of the following SQL statement: SELECT MAX(EXAM_SCORE) FROM EXAM_RESULTS WHERE EXAM_ID = 1 AND FIRST_NAME LIKE '%E%'; a) 90 b) 85 c) 100 d) 78 21. What SQL statement do we use to print out the records of all students whose first name or last name ends in 'A'? a) SELECT * FROM EXAM_RESULTS WHERE FIRST_NAME LIKE '%A' OR LAST_NAME LIKE '%A'; b) SELECT * FROM EXAM_RESULTS WHERE FIRST_NAME LIKE 'A' OR LAST_NAME LIKE 'A'; c) SELECT * FROM EXAM_RESULTS WHERE FIRST_NAME LIKE 'A%' OR LAST_NAME LIKE 'A%'; d) SELECT * FROM EXAM_RESULTS WHERE FIRST_NAME LIKE '%A%' OR LAST_NAME LIKE '%A%'; 22. What SQL statement do we use to find the name of all students who scored better than 90 on the second exam (EXAM_ID = 2)? a) SELECT FIRST_NAME, LAST_NAME FROM EXAM_RESULTS WHERE EXAM_ID = 2 OR Exam_SCORE > 90; b) SELECT FIRST_NAME, LAST_NAME FROM EXAM_RESULTS WHERE EXAM_ID = 2 AND Exam_SCORE > 90; c) SELECT FIRST_NAME, LAST_NAME FROM EXAM_RESULTS WHERE Exam_SCORE > 90; d) SELECT FIRST_NAME, LAST_NAME FROM EXAM_RESULTS WHERE EXAM_ID = 2 HAVING Exam_SCORE > 90; 23. What SQL statement do we use to find the name of all students who scored better than 180 on all the Exams? a) SELECT FIRST_NAME, LAST_NAME, SUM(EXAM_SCORE) FROM EXAM_RESULTS GROUP BY FIRST_NAME, LAST_NAME; b) SELECT FIRST_NAME, LAST_NAME, SUM(EXAM_SCORE) FROM EXAM_RESULTS HAVING SUM(EXAM_SCORE) > 180; c) SELECT FIRST_NAME, LAST_NAME, SUM(EXAM_SCORE) FROM EXAM_RESULTS GROUP BY FIRST_NAME, LAST_NAME HAVING SUM(EXAM_SCORE) > 180; d) SELECT FIRST_NAME, LAST_NAME, SUM(EXAM_SCORE) FROM EXAM_RESULTS WHERE EXAM_SCORE > 180 GROUP BY FIRST_NAME, LAST_NAME; 24. How many records does the following SQL statement generate? SELECT * FROM EXAM_RESULTS WHERE LAST_NAME LIKE '%N%' AND EXAM_SCORE > 88; a) 4 b) 3 c) 1 d) No Result 25. How many records does the following SQL statement return? SELECT * FROM EXAM_RESULTS WHERE STUDENT_ID <= 12 AND EXAM_SCORE > 85; a) 5 b) 4 c) 3 d) 2 Your Score: 0 / 25 Question Correct Answer Your Answer 1 b No Answer 2 d No Answer 3 c No Answer 4 a No Answer 5 c No Answer 6 d No Answer 7 b No Answer 8 a No Answer 9 b No Answer 10 c No Answer 11 c No Answer 12 a No Answer 13 d No Answer 14 b No Answer 15 a No Answer 16 c No Answer 17 b No Answer 18 c No Answer 19 a No Answer 20 d No Answer 21 a No Answer 22 b No Answer 23 c No Answer 24 b No Answer 25 c No Answer