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1Z0-071 Questions Explanations - Oracle Database SQL Latest Test Study Guide - Royalholidayclubbed
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1z0-071 PDF DEMO:
QUESTION NO: 1
View the Exhibit and examine the structure of the ORDER_ITEMS table.
Examine the following SQL statement:
SELECT order_id, product_id, unit_price
FROM order_items
WHERE unit_price =
(SELECT MAX(unit_price)
FROM order_items
GROUP BY order_id);
You want to display the PRODUCT_ID of the product that has the highest UNIT_PRICE per ORDER_ID.
What correction should be made in the above SQL statement to achieve this?
A. Replace = with the >ANY operator
B. Replace = with the IN operator
C. Remove the GROUP BY clause from the subquery and place it in the main query
D. Replace = with the >ALL operator
Answer: B
QUESTION NO: 2
You issued the following command:
SQL> DROP TABLE employees;
Which three statements are true? (Choose three.)
A. All uncommitted transactions are committed.
B. The space used by the employees table is reclaimed immediately.
C. The employees table is moved to the recycle bin
D. Sequences used in the employees table become invalid.
E. All indexes and constraints defined on the table being dropped are also dropped.
F. The employees table can be recovered using the rollback command.
Answer: A,C,E
QUESTION NO: 3
View the Exhibit and examine the details of PRODUCT_INFORMATION table.
You have the requirement to display PRODUCT_NAME from the table where the CATEGORY_ID column has values 12 or 13, and the SUPPLIER_ID column has the value 102088. You executed the following SQL statement:
SELECT product_name
FROM product_information
WHERE (category_id = 12 AND category_id = 13) AND supplier_id = 102088; Which statement is true regarding the execution of the query?
A. It would execute but the output would return no rows.
B. It would not execute because the same column has been used in both sides of the AND logical operator to form the condition.
C. It would not execute because the entire WHERE clause condition is not enclosed within the parentheses.
D. It would execute and the output would display the desired result.
Answer: A
QUESTION NO: 4
Examine the structure of the MEMBERS table:
NameNull?Type
------------------ --------------- ------------------------------
MEMBER_IDNOT NULLVARCHAR2 (6)
FIRST_NAMEVARCHAR2 (50)
LAST_NAMENOT NULLVARCHAR2 (50)
ADDRESSVARCHAR2 (50)
You execute the SQL statement:
SQL > SELECT member_id, ' ' , first_name, ' ' , last_name "ID FIRSTNAME LASTNAME " FROM members; What is the outcome?
A. It fails because the alias name specified after the column names is invalid.
B. It executes successfully and displays the column details in three separate columns and replaces only the last column heading with the alias.
C. It executes successfully and displays the column details in a single column with only the alias column heading.
D. It fails because the space specified in single quotation marks after the first two column names is invalid.
Answer: B
QUESTION NO: 5
Examine the description of the EMP_DETAILS table given below:
Which two statements are true regarding SQL statements that can be executed on the EMP_DETAIL
TABLE?
A. An EMP_IMAGE column can be included in the GROUP BY clause.
B. An EMP_IMAGE column cannot be included in the ORDER BY clause.
C. You cannot add a new column to the table with LONG as the data type.
D. You can alter the table to include the NOT NULL constraint on the EMP_IMAGE column.
Answer: B,C
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Updated: May 28, 2022
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