Free PDF Quiz 2025 Oracle Valid Exams 1z1-071 Torrent

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Oracle Database SQL Sample Questions (Q236-Q241):

NEW QUESTION # 236
These are the steps for a correlated subquery, listed in random order:
* The WHERE clause of the outer query is evaluated.
* A candidate row is fetched from the table specified in the outer query.
* This is repeated for the subsequent rows of the table, until all the rows are processed.
* Rows are returned by the inner query, after being evaluated with the value from the candidate row in the outer query.
Which is the correct sequence in which the Oracle server evaluates a correlated subquery?

A. 4, 2, 1, 3
B. 2, 1, 4, 3
C. 2, 4, 1, 3
D. 4, 1, 2, 3

Answer: C

Explanation:
Explanation
http://rajanimohanty.blogspot.co.uk/2014/01/correlated-subquery.html

NEW QUESTION # 237
View the exhibit and examine the description of the PRODUCT_INFORMATIONtable.

Which SQL statement would retrieve from the table the number of products having LIST_PRICEas NULL?

A. SELECT COUNT (NVL(list_price, 0))
FROM product_information
WHERE list_price is NULL
B. SELECT COUNT (DISTINCT list_price)
FROM product_information
WHERE list_price is NULL
C. SELECT COUNT (list_price)
FROM product_information
WHERE list_price i= NULL
D. SELECT COUNT (list_price)
FROM product_information
WHERE list_price is NULL

Answer: A

NEW QUESTION # 238
Which two statements are true about the DUAL table?

A. It consists of a single row and single column of VARCHAR2 data type.
B. It can be accessed only by the SYS user.
C. It can display multiple rows and columns.
D. It can be used to display only constants or pseudo columns.
E. It can display multiple rows but only a single column.
F. It can be accessed by any user who has the SELECT privilege in any schema

Answer: A,F

Explanation:
A . Incorrect. DUAL consists of a single row and column. B. Incorrect. DUAL is a special one-row, one-column table present by default in all Oracle database installations and can be accessed by any user with SELECT privilege. C. Correct. Any user with the SELECT privilege can select from the DUAL table. It is a dummy table used primarily for selecting a constant, pseudocolumn, or expression not involving any tables. D. Incorrect. DUAL has only one row and one column. E. Correct. The DUAL table has a single VARCHAR2 column called DUMMY, which has a value of 'X'. F. Incorrect. DUAL can be used for a variety of purposes, such as selecting system constants, user environment variables, expressions, and sequences.
This information is detailed in the Oracle Database SQL Language Reference, which describes the properties and uses of the DUAL table.

NEW QUESTION # 239
View the exhibit and examine the data in ORDERS_MASTER and MONTHLY_ORDERS tables.

Evaluate the following MERGE statement:
MERGE_INTO orders_master o
USING monthly_orders m
ON (o.order_id = m.order_id)
WHEN MATCHED THEN
UPDATE SET o.order_total = m.order_total
DELETE WHERE (m.order_total IS NULL)
WHEN NOT MATCHED THEN
INSERT VALUES (m.order_id, m.order_total);
What would be the outcome of the above statement?

A. The ORDERS_MASTER table would contain the ORDER_IDs 1 and 2.
B. The ORDERS_MASTER table would contain the ORDER_IDs 1, 2 and 4.
C. The ORDERS_MASTER table would contain the ORDER_IDs 1, 2, 3 and 4.
D. The ORDERS_MASTER table would contain the ORDER_IDs 1, 2 and 3.

Answer: B

Explanation:
https://docs.oracle.com/cd/B28359_01/server.111/b28286/statements_9016.htm

NEW QUESTION # 240
View the Exhibit and examine the description of the EMPLOYEES table.

Evaluate the following SQL statement:
SELECT first_name, employee_id, NEXT_DAY(ADD_MONTHS(hire_date, 6), 1) "Review" FROM employees; The query was written to retrieve the FIRST_NAME, EMPLOYEE_ID, and review date for employees. The review date is the firsts Monday after the completion of six months of the hiring. The NLS_TERRITORY parameter is set to AMERICA in the session.
Which statement is true regarding this query?

A. The query would execute but the output would give review dates that are Sundays.
B. The query would execute to give the desired output.
C. The query would not execute because the NEXT_DAY function accepts a string as argument.
D. The query would not execute because date functions cannot be nested.

Answer: A

NEW QUESTION # 241
......

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Free PDF Quiz 2025 Oracle Valid Exams 1z1-071 Torrent

2025 Pass-Sure Exams 1z1-071 Torrent | 100% Free Exam Dumps Oracle Database SQL Demo

Oracle Database SQL Sample Questions (Q236-Q241):

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