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Oracle Database SQL Sample Questions (Q205-Q210):

NEW QUESTION # 205
Which two queries execute successfully?

A. SELECT CO ALESCE(100, 'A' ) FROM DUAL
B. SELECT NULLIF(NULL, 100) FROM DUAL
C. SELECT COALESCE(100, NULL, 200) FROM DUAL
D. SELECT NULLIF(100, 'A') FROM DUAL
E. SELECT NULLIF(100, 100) FROM DUAL

Answer: A,B,C,E

Explanation:
The NULLIF and COALESCE functions in Oracle SQL serve specific purposes:
* Option A: Executes successfully. NULLIF returns NULL if the two arguments are equal; otherwise, it
* returns the first argument.
* Option B: Also correct. COALESCE returns the first non-null value among its arguments.
* Option C: This will not execute successfully because NULLIF requires both arguments to be of comparable data types. Comparing an integer to a character ('100' to 'A') is invalid.
* Option D: Executes successfully. NULLIF returns NULL because it compares NULL to a number, which is valid (though always yields NULL).
* Option E: Executes successfully. COALESCE accepts any data type as it returns the first non-null value, irrespective of type consistency among the arguments.

NEW QUESTION # 206
View the exhibit and examine the description of SALESand PROMOTIONStables.

You want to delete rows from the SALES table, where the PROMO_NAMEcolumn in the PROMOTIONStable has either blowout saleor everyday low priceas values.
Which three DELETEstatements are valid? (Choose three.)
DELETE

A. FROM sales
WHERE promo_id = (SELECT promo_id
FROM promotions
WHERE promo_name = 'blowout sale')
OR promo_id = (SELECT promo_id
FROM promotions
WHERE promo_name = 'everyday low price')
DELETE
B. FROM sales
WHERE promo_id = (SELECT promo_id
FROM promotions
WHERE promo_name = 'blowout sale')
OR promo_name = 'everyday low price');
DELETE
C. FROM sales
WHERE promo_id = (SELECT promo_id
FROM promo_name = 'blowout sale')
AND promo_id = (SELECT promo_id
FROM promotions
WHERE promo_name = 'everyday low price')
FROM promotions
WHERE promo_name = 'everyday low price');
DELETE
D. FROM sales
WHERE promo_id IN (SELECT promo_id
FROM promotions
WHERE promo_name IN = 'blowout sale','everyday low price'));

Answer: A,B,D

NEW QUESTION # 207
You issued this command:
CHOOSE THREE
SQL > DROP TABLE employees;
Which three statements are true?

A. All indexes and constraints defined on the table being dropped are also dropped.
B. The space used by the EMPLOYEES table is always reclaimed immediately.
C. Sequences used in the EMPLOYEES table become invalid.
D. The EMPLOYEES table can be recovered using the ROLLBACK command.
E. The EMPLOYEES table may be moved to the recycle bin.
F. If there is an uncommitted transaction in the session, it is committed.

Answer: A,E,F

NEW QUESTION # 208
Examine this SQL statement:

Which two are true?

A. The subquery is not a correlated subquery
B. The UPDATEstatement executes successfully even if the subquery selects multiple rows
C. The subquery is executed for every updated row in the ORDERStable
D. The subquery is executed before the UPDATEstatement is executed
E. All existing rows in the ORDERStable are updated

Answer: A

NEW QUESTION # 209
Examine the description of the MEMBERStable:

Examine the partial query:
SELECT city, last_name LNAME FROM members ...;
You want to display all cities that contain the string AN. The cities must be returned in ascending order, with the last names further sorted in descending order.
Which two clauses must you add to the query? (Choose two.)
ORDER BY last_name DESC, city ASC

A. ORDER BY 1, LNAME DESC
B.
C. WHERE city LIKE '%AN%'
D. WHERE city = '%AN%'
E. WHERE city IN ('%AN%')
F. ORDER BY 1, 2

Answer: B,F

NEW QUESTION # 210
......

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2025 Pass-Sure 1z0-071–100% Free Latest Exam Experience | Valid Dumps 1z0-071 Ppt

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Oracle Database SQL Sample Questions (Q205-Q210):

100% Pass Quiz Oracle - 1z0-071 - Oracle Database SQL Unparalleled Latest Exam Experience

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