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Oracle 1z1-071 exam covers a range of topics, including SQL data retrieval, SQL data manipulation, and SQL data control. Candidates will need to demonstrate their understanding of SQL concepts and syntax, as well as their ability to write and execute SQL statements. 1z0-071 Exam also includes questions on database objects, data types, and data modeling.

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Oracle Database SQL Sample Questions (Q322-Q327):

NEW QUESTION # 322
Examine the structure of the EMPLOYEEStable.

There is a parent/child relationship between EMPLOYEE_IDand MANAGER_ID.
You want to display the last names and manager IDs of employees who work for the same manager as the employee whose EMPLOYEE_IDis 123.
Which query provides the correct output?
SELECT e.last_name, m.manager_id

A. FROM employees e LEFT OUTER JOIN employees m
on (e.manager_id = m.manager_id)
WHERE e.employee_id = 123;
B. FROM employees e RIGHT OUTER JOIN employees m
on (e.employee_id = m.employee_id)
WHERE e.employee_id = 123;
SELECT m.last_name, e.manager_id
C. FROM employees e LEFT OUTER JOIN employees m
on (e.employee_id = m.manager_id)
WHERE e.employee_id = 123;
SELECT e.last_name, e.manager_id
D. FROM employees e RIGHT OUTER JOIN employees m
on (e.manager_id = m.employee_id)
AND e.employee_id = 123;
SELECT e.last_name, m.manager_id

Answer: A

NEW QUESTION # 323
Which two statements are true regarding the EXISTSoperator used in the correlated subqueries? (Choose two.)

A. It is used to test whether the values retrieved by the inner query exist in the result of the outer query.
B. The outer query continues evaluating the result set of the inner query until all the values in the result set are processed.
C. The outer query stops evaluating the result set of the inner query when the first value is found.
D. It is used to test whether the values retrieved by the outer query exist in the result set of the inner query.

Answer: C,D

Explanation:
Explanation/Reference:
References:
http://www.techonthenet.com/oracle/exists.php

NEW QUESTION # 324
Examine this SQL statement:
SELECT cust_id, cust_last_name "Last Name
FROM customers
WHERE countryid=10
UNION
SELECT custid CUSTNO, cust_last_name
FROM customers
WHERE countryid=30
Identify three ORDER BY clauses, any one of which can complete the query successfully.

A. ORDER BY CUSTNO
B. ORDERBY2, 1
C. ORDER BY 2, cust_id
D. ORDER BY "Last Name"
E. ORDER BY"CUST NO"

Answer: B,C,D

NEW QUESTION # 325
The PROD_ID column is the foreign key in the SALES table.Which references the PRODUCTS table.
Similarly,the CUST_ID and TIME_ID columns are Also foreign keys in the SALES table referencing the CUSTOMERS and TIMES tables, respectively.
Evaluate the following CREATE TABLE command:
CREATE TABLE new_sales(prod_id, I cust_id, order_date DEFAULT SYSDATE)
AS SELECT I prod_id,cust_id,time_id FROM sales.
Which statement is true regarding the above command?

A. The NEW_SALES table would not get created because the DEFAULT value cannot be specified in the column definition.
B. The NEW_SALES table would get created and all the FOREIGN KEY constraints defined on the specified columns would be passed to the new table
C. The NEW_SALES table would not get created because the column names in the CREATE TABLE command and the SELECT clause I do not match.
D. The NEW_SALES table would get created and all the NOT NULL constraints defined on the specified columns would be passed to the new table.

Answer: C

Explanation:
The statement true regarding the CREATE TABLE command:
* C. The NEW_SALES table would not get created because the column names in the CREATE TABLE command and the SELECT clause do not match: The SQL command tries to create a table with columns prod_id, cust_id, and order_date, but the SELECT statement specifies columns prod_id
, cust_id, and time_id. The mismatch in column names and the number of columns specified will prevent the table from being created.
Incorrect options:
* A: It is possible to specify a DEFAULT value in the column definition when creating a table with the CREATE TABLE AS SELECT syntax.
* B: Not all NOT NULL constraints (or any other constraints, for that matter) are automatically passed to the new table unless explicitly stated in the CREATE TABLE statement.
* D: FOREIGN KEY constraints are not automatically included when creating a table using the CREATE TABLE AS SELECT syntax; they would need to be added explicitly afterwards.

NEW QUESTION # 326
Examine the following query:
SQL> SELECT prod_id, amount_sold
FROM sales
ORDER BY amount_sold
FETCH FIRST 5 PERCENT ROWS ONLY;
What is the output of this query?

A. It displays 5 percent of the products with the highest amount sold.
B. It displays the first 5 percent of the rows from the SALEStable.
C. It results in an error because the ORDER BYclause should be the last clause.
D. It displays 5 percent of the products with the lowest amount sold.

Answer: D

Explanation:
Explanation
Explanation/Reference:
References:
https://oracle-base.com/articles/12c/row-limiting-clause-for-top-n-queries-12cr1

NEW QUESTION # 327
......

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1z0-071 Exam Prep | Latest 1z0-071 Exam Testking

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Oracle Database SQL Sample Questions (Q322-Q327):

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