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Question ID 8001

Which are iSQL*Plus commands? (Choose all that apply.)

Option A

INSERT

Option B

UPDATE

Option C

SELECT

Option D

DESCRIBE

Option E

DELETE

Option F

RENAME

Correct Answer D
Explanation Explanation/Reference: Explanation : The only SQL*Plus command in this list : DESCRIBE. It cannot be used as SQL command. This command returns a description of tablename, including all columns in that table, the datatype for each column and an indication of whether the column permits storage of NULL values. Incorrect answer: A INSERT is not a SQL*PLUS command B UPDATE is not a SQL*PLUS command C SELECT is not a SQL*PLUS command E DELETE is not a SQL*PLUS command F RENAME is not a SQL*PLUS command Refer : Introduction to Oracle9i : SQL, Oracle University Study Guide, 7


Question ID 8002

Examine the description of the CUSTOMERS table: CUSTOMER_ID NUMBER(4) NOT NULL CUSTOMER_NAME VARCHAR2(100) NOT NULL STREET_ADDRESS VARCHAR2(150) CITY_ADDRESS VARCHAR2(50) STATE_ADDRESS VARCHAR2(50) PROVINCE_ADDRESS VARCHAR2(50) COUNTRY_ADDRESS VARCHAR2(50) POSTAL_CODE VARCHAR2(12) CUSTOMER_PHONE VARCHAR2(20) The CUSTOMER_ID column is the primary key for the table. Which statement returns the city address and the number of customers in the cities Los Angeles or San Francisco?

Option A

SELECT city_address, COUNT(*) FROM customers WHERE city _ address IN ('Los Angeles','San Fransisco');

Option B

SELECT city_address, COUNT (*) FROM customers WHERE city address IN ( 'Los Angeles', 'San Fransisco') GROUP BY city_address;

Option C

SELECT city_address, COUNT(customer_id) FROM customers WHERE city_address IN ( 'Los Angeles', 'San Fransisco') GROUP BY city_address, customer_ id;

Option D

SELECT city_address, COUNT (customer_id) FROM customers GROUP BY city_ address IN ('Los Angeles','San Fransisco');

Correct Answer B
Explanation Explanation/Reference: Explanation: Not C: The customer ID in the GROUP BY clause is wrong

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