Oracle Oracle Certifications 1Z0-071 Questions & Answers

• Question 91:

  Examine the structure of the MEMBERS table:

  

  You want to display details of all members who reside in states starting with the letter A followed by exactly one character.

  Which SQL statement must you execute?

  A. SELECT * FROM MEMBERS WHERE state LIKE '%A_';

  B. SELECT * FROM MEMBERS WHERE state LIKE 'A_';

  C. SELECT * FROM MEMBERS WHERE state LIKE 'A_%';

  D. SELECT * FROM MEMBERS WHERE state LIKE 'A%';

  Correct Answer: B

• Question 92:

  You want to display 5 percent of the rows from the SALES table for products with the lowest AMOUNT_SOLD and also want to include the rows that have the same AMOUNT_SOLD even if this causes the output to exceed 5 percent of the

  rows.

  Which query will provide the required result?

  A. SELECT prod_id, cust_id, amount_sold FROM sales ORDER BY amount_sold FETCH FIRST 5 PERCENT ROWS WITH TIES;

  B. SELECT prod_id, cust_id, amount_sold FROM sales ORDER BY amount_sold FETCH FIRST 5 PERCENT ROWS ONLY WITH TIES;

  C. SELECT prod_id, cust_id, amount_sold FROM sales ORDER BY amount_sold FETCH FIRST 5 PERCENT ROWS WITH TIES ONLY;

  D. SELECT prod_id, cust_id, amount_sold FROM sales ORDER BY amount_sold FETCH FIRST 5 PERCENT ROWS ONLY;

  Correct Answer: A

• Question 93:

  Examine the structure of the MEMBERS table:

  Name Null? Type

  MEMBER_ID NOT NULL VARCHAR2 (6)

  FIRST_NAME VARCHAR2 (50)

  LAST_NAME NOT NULL VARCHAR2 (50)

  ADDRESS VARCHAR2 (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 fails because the space specified in single quotation marks after the first two column names is invalid.

  C. It executes successfully and displays the column details in a single column with only the alias column heading.

  D. It executes successfully and displays the column details in three separate columns and replaces only the last column heading with the alias.

  Correct Answer: D

• Question 94:

  You issue the following command to drop the PRODUCTS table:

  SQL > DROP TABLE products;

  Which three statements are true about the implication of this command? (Choose three.)

  A. All data along with the table structure is deleted.

  B. A pending transaction in the session is committed.

  C. All indexes on the table remain but they are invalidated.

  D. All views and synonyms on the table remain but they are invalidated.

  E. All data in the table is deleted but the table structure remains.

  Correct Answer: ABD

• Question 95:

  You execute the following commands:

  SQL > DEFINE hiredate = '01-APR-2011'

  SQL >SELECT employee_id, first_name, salary

  FROM employees

  WHERE hire_date > 'andhiredate'

  AND manager_id > andmgr_id;

  For Which substitution variables are you prompted for the input?

  A. none, because no input required

  B. both the substitution variables ''hiredate' and 'mgr_id'.

  C. only hiredate'

  D. only 'mgr_id'

  Correct Answer: D

• Question 96:

  Which two statements are true regarding the EXISTS operator used in the correlated subqueries? (Choose two.)

  A. The outer query stops evaluating the result set of the inner query when the first value is found.

  B. It is used to test whether the values retrieved by the inner query exist in the result of the outer query.

  C. It is used to test whether the values retrieved by the outer query exist in the result set of the inner query.

  D. The outer query continues evaluating the result set of the inner query until all the values in the result set are processed.

  Correct Answer: AC

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

• Question 97:

  Which three statements are true regarding the WHERE and HAVING clauses in a SQL statement? (Choose three.)

  A. WHERE and HAVING clauses cannot be used together in a SQL statement.

  B. The HAVING clause conditions can have aggregate functions.

  C. The HAVING clause conditions can use aliases for the columns.

  D. The WHERE clause is used to exclude rows before the grouping of data.

  E. The HAVING clause is used to exclude one or more aggregated results after grouping data.

  Correct Answer: BDE

• Question 98:

  Which statement is true regarding external tables?

  A. The CREATE TABLE AS SELECT statement can be used to upload data into a normal table in the database from an external table.

  B. The data and metadata for an external table are stored outside the database.

  C. The default REJECT LIMIT for external tables is UNLIMITED.

  D. ORACLE_LOADER and ORACLE_DATAPUMP have exactly the same functionality when used with an external table.

  Correct Answer: A

  References: https://docs.oracle.com/cd/B28359_01/server.111/b28310/tables013.htm

• Question 99:

  Which two statements are true about Data Manipulation Language (DML) statements?

  A. An INSERT INTO...VALUES.. statement can add multiple rows per execution to a table.

  B. An UPDATE... SET... statement can modify multiple rows based on multiple conditions on a table.

  C. A DELETE FROM..... statement can remove rows based on only a single condition on a table.

  D. An INSERT INTO... VALUES..... statement can add a single row based on multiple conditions on a table.

  E. A DELETE FROM..... statement can remove multiple rows based on multiple conditions on a table.

  F. An UPDATE....SET.... statement can modify multiple rows based on only a single condition on a table.

  Correct Answer: BE

  References: http://www.techonthenet.com/sql/and_or.php

• Question 100:

  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 not execute because the same column has been used in both sides of the AND logical operator to form the condition.

  B. It would not execute because the entire WHERE clause condition is not enclosed within the parentheses.

  C. It would execute and the output would display the desired result.

  D. It would execute but the output would return no rows.

  Correct Answer: D