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Question ID 8184

Examine the table instance chart for the cars table. Column ID MODEL STYLE Colour LOT_NO name Key type PK FK NN, UU NN NN NN NN Nulls/Unique FK table LOT FK column LOT_NO Data type NUM CHAR CHAR CHAR NUM Length 9 25 25 25 3 You query the database with this command: SELECT lot_number "lot number",count(*) "number of cars available" FROM cars WHERE model= 'fire' GROUP BY lot_no HAVING COUNT (*)>10 ORDER BY COUNT (*); Which clause restricts which group's are displayed?

Option A

SELECT lot_number "lot number,count(*) number of cars available"

Option B

WHERE model= 'fire'

Option C

HAVING COUNT (*)>10.

Option D

GROUP BY lot_no.

Option E

ORDER BY COUNT (*);

Correct Answer C
Explanation Explanation/Reference: Explanation: Answers C is correct because the HAVING clause is used in conjunction with the GROUP BY clause to restrict which group will be displayed. Incorrect Answers: A: The HAVING clause is correct, not the SELECT clause. B: The HAVING clause is correct, not the WHERE clause. D: The HAVING clause is correct, not the GROUP BY clause. E: The HAVING clause is correct, not the ORDER BY clause. Oracle 8, DBA Certification Exam Guide, Jason S. Couchman, p. 63-64 Chapter 2: Advanced Data Selection in Oracle


Question ID 8185

Examine the table instances chart for the cars table. Column ID MODEL STYLE Colour LOT_NO name Key type PK FK NN, UU NN NN NN NN Nulls/Unique FK table LOT FK column LOT_NO Data type NUM CHAR CHAR CHAR NUM Length 9 25 25 25 3 Which select table will display the style, colour and lot number for all car based on the model enter at the prompt regardless of the case?

Option A

SELECT style, colour,lot_no FROM cars WHERE model=UPPER('&modal');

Option B

SELECT style, colour,lot_no FROM cars WHERE model='&modal';

Option C

SELECT style, colour,lot_no FROM cars WHERE UPPER(model)=UPPER('&modal');

Option D

SELECT style, colour,lot_no FROM car WHERE UPPER(model)= ('&modal');

Correct Answer C
Explanation Explanation/Reference: Explanation: Answers C is correct because function UPPER will convert values of column and the modal enter to the uppercase, which allows to avoid problems with the case of the entered value. Incorrect Answers: A: Column values will not be converted to the uppercase. B: No column values not the entered value will not be converted to the uppercase. D: The entered value will not be converted to the uppercase. Oracle 8, DBA Certification Exam Guide, Jason S. Couchman, p. 22-24 Chapter 1: Selecting Data from Oracle

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