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Oracle 1z1-071 Exam tests candidates on various topics, including SQL SELECT statements, data manipulation language, data definition language, database objects, and database security. Candidates are required to demonstrate their ability to write and execute SQL code and troubleshoot common SQL errors. 1z0-071 Exam consists of 73 multiple-choice questions, and candidates have 105 minutes to complete the test.

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Oracle 1z0-071 certification exam consists of 73 multiple-choice questions that must be completed within 100 minutes. 1z0-071 exam covers a range of topics, including SQL fundamentals, data retrieval, data manipulation, table creation, and table maintenance. Candidates must demonstrate a deep understanding of SQL programming concepts and be able to apply their knowledge to real-world scenarios.

Oracle 1z1-071 Exam consists of 73 multiple-choice questions that must be completed in 100 minutes. The questions are designed to test the candidate's understanding of SQL and its various functions. 1z0-071 Exam covers topics such as creating and managing tables, manipulating data, using SQL functions, and controlling user access to data. 1z0-071 exam also covers the basics of SQL syntax and how to write SQL statements.

Oracle Database SQL Sample Questions (Q428-Q433):

NEW QUESTION # 428
Which two statements best describe the benefits of using the WITHclause? (Choose two.)

A. It can improve the performance of a large query by storing the result of a query block having the WITH clause in the session's temporary tablespace.
B. It enables sessions to reuse the same query block in a SELECTstatement, if it occurs more than once in a complex query.
C. It enables sessions to store the results of a query permanently.
D. It enables sessions to store a query block permanently in memory and use it to create complex queries.

Answer: A,B

Explanation:
Explanation

NEW QUESTION # 429
View the Exhibit and examine the structure of the ORDER_ITEMS table.

You must select the ORDER_ID of the order that has the highest total value among all the orders in the ORDER_ITEMS table.
Which query would produce the desired result?
SELECT order_id

A. FROM order_items
WHERE(unit_price*quantity) = (SELECT MAX(unit_price*quantity)
FROM order_items)
GROUP BY order_id;
SELECT order_id
B. FROM order_items
GROUP BY order_id
HAVING SUM(unit_price*quantity) = (SELECT MAX(SUM(unit_price*quantity)) FROM order_items GROUP BY order_id); SELECT order_id
C. FROM order_items
WHERE(unit_price*quantity) = MAX(unit_price*quantity)
GROUP BY order_id;
SELECT order_id
D. FROM order_items
WHERE (unit_price*quantity) = (SELECT MAX(unit_price*quantity)
FROM order_items
GROUP BY order_id)

Answer: B

NEW QUESTION # 430
Which three statements are true about single-row functions? (Choose three.)

A. They can be nested to any level
B. They return a single result row per table
C. They can accept only one argument
D. The argument can be a column name, variable, literal or an expression
E. The data type returned can be different from the data type of the argument
F. They can be used only in the WHERE clause of a SELECT statement

Answer: D,E

Explanation:
Explanation/Reference: https://www.folkstalk.com/2012/01/oracle-single-row-functions-examples.html

NEW QUESTION # 431
Which three statements are true about views in an Oracle database?

A. Views can join tables only if they belong to the same schema.
B. A view can be created that refers to a non-existent table in its defining query.
C. Views have no object number.
D. A SELECT statement cannot contain a where clause when querying a view containing a WHERE clause in its defining query
E. Rows inserted into a table using a view are retained in the table if the view is dropped
F. Views have no segment.

Answer: B,E,F

Explanation:
A view is a virtual table based on a SQL query.
A: This is incorrect because a SELECT statement querying a view can contain a WHERE clause, regardless of the view's defining query. C. This is incorrect because views can join tables from different schemas, not just the same schema. B. Correct. The rows inserted into a base table via a view remain in the table even if the view is dropped because the view is just a window to the data in the base tables. D. Correct. Views do not require storage space other than for the definition of the view in the data dictionary, hence they have no segment. E. Incorrect. Views do not have object numbers because they are not database objects that occupy physical space. F. Correct. You can create a view that references non-existent tables; such a view would be considered invalid until the base table is created.
The Oracle Database Concepts guide provides information about views and their characteristics.

NEW QUESTION # 432
View the Exhibit and examine the structure of ORDERS and CUSTOMERS tables. (Choose the best answer.)

You executed this UPDATE statement:
UPDATE
( SELECT order_date, order_total, customer_id FROM orders)
Set order_date = '22-mar-2007'
WHERE customer_id IN
(SELECT customer_id FROM customers
WHERE cust_last_name = 'Roberts' AND credit_limit = 600);
Which statement is true regarding the execution?

A. It would not execute because a SELECT statement cannot be used in place of a table name.
B. It would not execute because a subquery cannot be used in the WHERE clause of an UPDATE statement.
C. It would execute and restrict modifications to the columns specified in the SELECT statement.
D. It would not execute because two tables cannot be referenced in a single UPDATE statement.

Answer: C

NEW QUESTION # 433
......

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