[Mar-2022] Oracle PL/SQL Developer Certified Associate 1z0-071 Exam Practice Dumps
2022 1z0-071 Premium Files Test pdf - Free Dumps Collection
NEW QUESTION 92
Choose two
Examine the description of the PRODUCT DETALS table:
- A. PRODUCT_NAME cannot contain duplicate values.
- B. EXPIRY_DATE cannot be used in arithmetic expressions.
- C. PRODUCT_ID can be assigned the PEIMARY KEY constraint.
- D. EXPIRY_DATE contains the SYSDATE by default if no date is assigned to it
- E. PRODUCT_PRICE contains the value zero by default if no value is assigned to it.
- F. PRODUCT_PRICE can be used in an arithmetic expression even if it has no value stored in it
Answer: C,F
NEW QUESTION 93
Which two are true about a SQL statement using SET operators such as UNION?
- A. The data type of each column returned by the second query must be implicitly convertible to the data type of the corresponding column returned by the first query.
- B. The data type of each column returned by the second query must exactly match the data type of the corresponding column returned by the first query.
- C. The names and number of columns must be identical for all SELECT statements in the query.
- D. The data type group of each column returned by the second query must match the data type group of the corresponding column returned by the first query.
- E. The number, but not names, of columns must be identical for all SELECT statements in the query.
Answer: B,E
NEW QUESTION 94
Which CREATE TABLE statement is valid?
- A. Option C
- B. Option B
- C. Option A
- D. Option D
Answer: D
NEW QUESTION 95
Which three statements are true regarding subqueries? (Choose three.)
- A. Subqueries can contain GROUP BY and ORDER BY clauses.
- B. Subqueries can contain ORDER BY but not the GROUP BY clause.
- C. Only one column or expression can be compared between the main query and subquery.
- D. Main query and subquery can get data from different tables.
- E. Main query and subquery must get data from the same tables.
- F. Multiple columns or expressions can be compared between the main query and subquery.
Answer: A,D,F
Explanation:
References:
http://docs.oracle.com/javadb/10.6.2.1/ref/rrefsqlj13658.html
NEW QUESTION 96
Examine the structure proposed for the TRANSACTIONS table:
Which two statements are true regarding the creation and storage of data in the above table structure? (Choose two.)
- A. The TRANS_DATE column would be able to store day, month, century, year, hour, minutes, seconds, and fractions of seconds.
- B. The CUST_STATUS column would store exactly one character.
- C. The CUST_STATUS column would give an error.
- D. The TRANS_VALIDITY column would give an error.
- E. The CUST_CREDIT_LIMIT column would be able to store decimal values.
- F. The TRANS_VALIDITY column would have a maximum size of one character.
Answer: B,D
NEW QUESTION 97
Which three statements are true regarding group functions? (Choose three.)
- A. They can be passed as an argument to another group function.
- B. They can be used together with the single-row functions in the SELECT clause.
- C. They can be used only on one column in the SELECT clause.
- D. They can be used with a SQL statement that has a GROUP BY clause.
- E. They can be used on columns or expressions.
Answer: A,B,E
Explanation:
Explanation
https://www.safaribooksonline.com/library/view/mastering-oracle-sql/0596006322/ch04.html
NEW QUESTION 98
Examine the structure of the EMPLOYEES table.
You must display the maximum and minimum salaries of employees hired 1 year ago.
Which two statements would provide the correct output? (Choose two.)
- A. SELECT minsal, maxsalFROM (SELECT MIN(salary) minsal, MAX(salary) maxsalFROM employeesWHERE hire_date < SYSDATE-365)GROUP BY maxsal, minsal;
- B. SELECT MIN(Salary), MAX(salary)FROM (SELECT salary FROMemployeesWHERE hire_date < SYSDATE-365);
- C. SELECT minsal, maxsalFROM (SELECT MIN(salary) minsal, MAX(salary) maxsalFROM employeesWHERE hire_date < SYSDATE-365GROUP BY MIN(salary), MAX(salary));
- D. SELECT MIN(Salary) minsal, MAX(salary) maxsalFROM employeesWHERE hire_date < SYSDATE-365GROUP BY MIN(salary), MAX(salary);
Answer: A,B
NEW QUESTION 99
Examine the description of the PRODUCT_ DETAILS table:
Which two statements are true?
- A. PRODUCT_ PRICE contains the value zero by default if no value is assigned to it.
- B. EXPIRY_ DATE contains the SYSDATE by default if no date is assigned to it.
- C. PRODUCT_ ID can be assigned the PRIMARY KEY constraint.
- D. PRODUCT_ NAME cannot contain duplicate values.
- E. EXPIRY_ DATE cannot be used in arithmetic expressions.
- F. PRODUCT_ PRICE can be used in an arithmetic expression even if it has no value stored in it.
Answer: C,F
NEW QUESTION 100
Examine the types and examples of relationship that follow:
1 One-to-one a) teacher to Student
2 One-to-many b) Employees to Manager
3 Many-to-one c) Person to SSN
4 Many-to-many d) Customers to Products
Which option indicates correctly matched relationships?
- A. 1-a, 2-b, 3-c, and 4-d
- B. 1-c, 2-a, 3-b, and 4-d
- C. 1-d, 2-b, 3-a, and 4-c
- D. 1-c, 2-d, 3-a, and 4-b
Answer: A
NEW QUESTION 101
Which two statements are true regarding non equijoins?
- A. Table aliases must be used.
- B. The SQL:1999 compliant ANSI join syntax must be used.
- C. The Oracle join syntax can be used.
- D. The USING clause can be used.
- E. The ON clause can be used.
Answer: C,E
NEW QUESTION 102
Examine the commands used to create DEPARTMENT_DETAILSand COURSE_DETAILS:
You want to generate a report that shows all course IDs irrespective of whether they have corresponding department IDs or not but no department IDs if they do not have any courses.
Which SQL statement must you use?
SELECT course_id, department_id, FROM department_details d RIGHT OUTER JOIN
- A. course_details c USING (department_id)
SELECT c.course_id, d.department_id FROM course_details c RIGHT OUTER JOIN - B. department_details d ON (c.department_id=d. department_id)
SELECT c.course_id, d.department_id FROM course_details c FULL OUTER JOIN - C. .department_details d ON (c.depatrment_id=d.department_id)
SELECT c.course_id, d.department_id FROM course_details c FULL OUTER JOIN - D. department_details d ON (c.department_id<>d. department_id)
Answer: B
NEW QUESTION 103
The following are the steps for a correlated subquery, listed in random order:
1. The WHEREclause of the outer query is evaluated.
2. The candidate row is fetched from the table specified in the outer query.
3. This is repeated for the subsequent rows of the table, till all the rows are processed.
4. 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. 2, 4, 1, 3
- B. 4, 2, 1, 3
- C. 2, 1, 4, 3
- D. 4, 1, 2, 3
Answer: A
Explanation:
Explanation/Reference:
References:
http://rajanimohanty.blogspot.co.uk/2014/01/correlated-subquery.html
NEW QUESTION 104
Examine this SQL statement:
DELETE FROM employees e
WHERE EXISTS
(SELECT'dummy'
FROM emp_history
WHERE employee_id = e.employee_id)
Which two are true?
- A. All existing rows in the EMPLOYEE table are deleted.
- B. The subquery is executed before the DELETE statement is executed.
- C. The subquery is not a correlated subquery.
- D. The subquery is executed for every row in the EMPLOYEES table.
- E. The DELETE statement executes successfully even if the subquery selects multiple rows.
Answer: D,E
NEW QUESTION 105
Examine the description of the PRODUCT_STATUS table:
The STATUS column contains the values 'IN STOCK' or 'OUT OF STOCK' for each row.
Which two queries will execute successfully?
- A. Option B
- B. Option E
- C. Option D
- D. Option F
- E. Option C
- F. Option A
Answer: A,B
NEW QUESTION 106
You have the privileges to create any type of synonym.
Which statement will create a synonym called EMPfor the HCM.EMPLOYEE_RECORDS table that is accessible to all users?
CREATE PUBLIC SYNONIM emp FOR hcm.employee_records;
- A. CREATE SYNONIM SYS.emp FOR hcm.employee_records;
- B. CREATE SYNONIM emp FOR hcm.employee_records;
- C.
- D. CREATE GLOBAL SYNONIM emp FOR hcm.employee_records;
- E. CREATE SYNONIM PUBLIC.emp FOR hcm.employee_records;
Answer: D
Explanation:
CREATE PUBLIC SYNONYM emp_table
Reference: https://docs.oracle.com/database/121/SQLRF/statements_7001.htm#SQLRF01401
NEW QUESTION 107
View the Exhibit and examine the details of PRODUCT_INFORMATION table.
PRODUCT_NAME
CATEGORY_ID
SUPPLIER_ID
Inkjet C/8/HQ
12
102094
Inkjet C/4
12
102090
LaserPro 600/6/BW
12
102087
LaserPro 1200/8/BW
12
102099
Inkjet B/6
12
102096
Industrial 700/ID
12
102086
Industrial 600/DQ
12
102088
Compact 400/LQ
12
102087
Compact 400/DQ
12
102088
HD 12GB /R
13
102090
HD 10GB /I
13
102071
HD 12GB @7200 /SE
13
102057
HD 18.2GB @10000 /E
13
102078
HD 18.2GB @10000 /I
13
102050
HD 18GB /SE
13
102083
HD 6GB /I
13
102072
HD 8.2GB@5400
13
102093
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 and the output would display the desired result.
- 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 but the output would return no rows.
Answer: D
NEW QUESTION 108
In the EMPLOYEES table there are 1000 rows and employees are working in the company for more than
10 years.
Evaluate the following SQL statement:
What would be the result?
- A. It gives an error because multiple NVL functions are used in an expression.
- B. It executes successfully and updates the records of those employees who have been working in the company for more than 600 days.
- C. It executes successfully but no rows updated.
- D. It gives an error because NVL function cannot be used with UPDATE.
Answer: B
NEW QUESTION 109
Examine the structure of the BOOKS_TRANSACTIONS table:
You want to display the member IDs, due date, and late fee as $2 for all transactions.
Which SQL statement must you execute?
- A. SELECT member_id AS "MEMBER ID", due_date AS "DUE DATE", $2 AS "LATE FEE" FROM BOOKS_TRANSACTIONS
- B. SELECT member_id 'MEMBER ID', due_date 'DUE DATE', '$2 AS LATE FEE' FROM BOOKS_TRANSACTIONS;
- C. SELECT member_id AS MEMBER_ID, due_date AS DUE_DATE, $2 AS LATE_FEE
FROM BOOKS_TRANSACTIONS - D. SELECT member_id AS "MEMBER ID", due_date AS "DUE DATE", '$2' AS "LATE FEE" FROM BOOKS_TRANSACTIONS
Answer: D
NEW QUESTION 110
In which three situations does a transaction complete? (Choose three.)
- A. when a TRUNCATE statement is executed after the pending transaction
- B. when a PL/SQL anonymous block is executed
- C. when a data definition language (DDL) statement is executed
- D. when a ROLLBACK command is executed
- E. when a DELETE statement is executed
Answer: A,C,D
Explanation:
Explanation
https://docs.oracle.com/cd/B19306_01/server.102/b14220/transact.htm
NEW QUESTION 111
View the Exhibit and examine the structure of the CUSTOMERS and CUST_HISTORY tables.
The CUSTOMERS table contains the current location of all currently active customers. The CUST_HISTORY table stores historical details relating to any changes in the location of all current as well as previous customers who are no longer active with the company.
You need to find those customers who have never changed their address.
Which SET operator would you use to get the required output?
- A. INTERSECT
- B. UNION ALL
- C. MINUS
- D. UNION
Answer: C
NEW QUESTION 112
Which two statements are true about * TABLES views?
- A. USER TABLES displays all tables owned by the current user.
- B. You must have SELECT privileges on a table to view it in DBA TABLES.
- C. You must have SELECT privileges on a table to view it in USER TABLES.
- D. All users can query DBA TABLES successfully.
- E. You must have SELECT privileges on a table to view it in ALL TABLES.
- F. All TABLES displays all tables owned by the current user.
Answer: A,E
NEW QUESTION 113
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