Ultimate Guide to Prepare 1z0-071 with Accurate PDF Questions [Aug 31, 2022]
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Introduction to ORACLE 1Z0-071 Certification Exam
The Oracle certification program is a worldwide program and there is a network of many different types of certifications available from Oracle. The 1Z0-071 exam is the first exam in the SQL Practice certification track. This track is meant for people who plan to build their career in SQL administration and want to specialize in managing the RDBMS with Oracle Community Platform, Enterprise Edition.
ORACLE 1Z0-071 Certification Exam is a certification exam for Oracle Database Administration, DBA. Oracle Database Administration, DBA certification proves that applicants have the skills and detailed knowledge needed to manage a company database resources. It is an important credential in the IT industry as it shows competencies of job positions such as application developers, database administrators, and IT managers. This is an online test preloaded with multiple-choice questions which are all included in Oracle 1Z0-071 Dumps. You have to select actual and relevant answers. Prepare yourself for this exam Guide by practicing with this assessment of the top websites to prepare for the 1Z0-071 exam.
Target Audience
The Oracle 1Z0-071 exam is designed for those professionals who have some level of experience in operating with Oracle SQL and PL/SQL technologies and want to improve their expertise to perform the job roles of a Database Administrator or a Developer.
NEW QUESTION 164
View the exhibit and examine the description of the PRODUCT_INFORMATION table.
Which SQL statement would retrieve from the table the number of products having LIST_PRICE as NULL?
- A. SELECT COUNT (list_price)FROM product_informationWHERE list_price is NULL
- B. SELECT COUNT (list_price)FROM product_informationWHERE list_price i= NULL
- C. SELECT COUNT (DISTINCT list_price)FROM product_informationWHERE list_price is NULL
- D. SELECT COUNT (NVL(list_price, 0))FROM product_informationWHERE list_price is NULL
Answer: D
NEW QUESTION 165
Examine the structure of the SALES table.
Examine this statement:
Which two statements are true about the SALES1 table? (Choose two.)
- A. It is created with no rows.
- B. It will not be created because the column-specified names in the SELECT and CREATE TABLE clauses do not match.
- C. It has PRIMARY KEY and UNIQUE constraints on the selected columns which had those constraints in the SALES table.
- D. It will not be created because of the invalid WHERE clause.
- E. It will have NOT NULL constraints on the selected columns which had those constraints in the SALES table.
Answer: A,E
NEW QUESTION 166
View the exhibit and examine the structure in ORDERSand ORDER_ITEMStables.
You need to create a view that displays the ORDER_ID, ORDER_DATE, and the total number of items in each order.
Which CREATEVIEWstatement would create the views successfully?
- A. CREATE OR REPLACE VIEW ord_vu
AS SELECT o.order_id, o.order_date, COUNT (i.line_item_id) ||
" NO OF ITEMS"
FROM orders o JOIN order_items i
ON (o.order_id = i.order_id)
GROUP BY o.order_id, o.order_date
WHITH CHECK OPTION; - B. CREATE OR REPLACE VIEW ord_vu
AS SELECT o.order_id, o.order_date, COUNT (i.line_item_id)
FROM orders o JOIN order_items i
ON (o.order_id = i.order_id)
GROUP BY o.order_id, o.order_date; - C. CREATE OR REPLACE VIEW ord_vu
AS SELECT o.order_id, o.order_date, COUNT (i.line_item_id)
" NO OF ITEMS"
FROM orders o JOIN order_items i
ON (o.order_id = i.order_id)
GROUP BY o.order_id, o.order_date; - D. CREATE OR REPLACE VIEW ord_vu (order_id, order_date)
AS SELECT o.order_id, o.order_date, COUNT (i.line_item_id)
" NO OF ITEMS"
FROM orders o JOIN order_items i
ON (o.order_id = i.order_id)
GROUP BY o.order_id, o.order_date;
Answer: C
NEW QUESTION 167
Examine the structure of the MEMBERS table.
Which query can be used to display the last names and city names only for members from the states MO and MI?
- A. SELECT last_name, city FROM members WHERE state ='MO' AND state ='MI';
- B. SELECT DISTINCT last_name, city FROM members WHERE state ='MO' OR state ='MI';
- C. SELECT last_name, city FROM members WHERE state LIKE 'M%';
- D. SELECT last_name, city FROM members WHERE state IN ('MO', 'MI');
Answer: D
NEW QUESTION 168
View the Exhibit and examine the structure of the ORDER_ITEMS and ORDERS tables.
You are asked to retrieve the ORDER_ID, product_ID, and total price (UNIT_PRICE multiplied by QUANTITY), where the total price is greater than 50,000.
You executed the following SQL statement:
SELECT prder_id, product_id, unit_price*quantity "Total Price"
FROM order_items
WHERE unit_price*quantity > 50000
NATURAL JOIN orders;
Which statement is true regarding the execution of the statement?
- A. The statement would not execute because the ON keyword is missing in the NATURAL JOIN clause.
- B. The statement would not execute because the WHERE clause is before the NATURAL JOIN clause.
- C. The statement would not execute because the USING keyword is missing in the NATURAL JOIN clause.
- D. The statement would execute and provide the desired result.
Answer: B
NEW QUESTION 169
Which two statements are true about substitution variables? (Choose two.)
- A. A substitution variable prefixed with && prompts only once for a value in a session unless it is set to undefined in the session
- B. A substitution variable prefixed with & always prompts only once for a value in a session
- C. A substitution variable used to prompt for a column name must be enclosed in double quotation marks
- D. A substitution variable can be used only in a SELECTstatement
- E. A substitution variable used to prompt for a column name must be enclosed in a single quotation marks
- F. A substitution variable can be used with any clause in a SELECTstatement
Answer: A,E
NEW QUESTION 170
Examine these statements which execute successfully:
ALTER SESSION SET NLS_DATE_FORMAT = 'DD-MON-YYYY HH24 MI: SS'
ALTER SESSION SET TIME_ ZONE = '-5:00';
SELECT DBTIMEZONE, SYSDATE FROM DUAL
Examine the result:
If LOCALTIMESTAMP was selected at the same time what would it return?
- A. 11-JUL-2019 11,00,00,00000000 AM
- B. 11-JUL-2019 6,00,00,00000000 AM - 05:00
- C. 11-JUL-2019 11,00,00,000000AM -05:00
- D. 11-JUL-2019 6,00,00,000000 AM
Answer: A
NEW QUESTION 171
Which two tasks can be performed by using Oracle SQL statements?
- A. querying data from tables across databases
- B. executing operating system (OS) commands in a session
- C. connecting to a database instance
- D. changing the password for an existing database user
- E. starting up a database instance
Answer: A,D
Explanation:
Explanation
References:
http://www.techonthenet.com/oracle/password.php
https://docs.oracle.com/cd/B28359_01/server.111/b28324/tdpii_distdbs.htm
NEW QUESTION 172
Examine the structure of the PROGRAMS table:
Which two SQL statements would execute successfully?
- A. SELECT NVL (TO_CHAR (MONTHS_BETWEEN (start-date, end_date)), 'Ongoing') FROM programs
- B. SELECT TO_DATE (NVL (SYSDATE-END_DATE, SYSDATE)) FROM programs;
- C. SELECT NVL (ADD_MONTHS (END_DATE,1) SYSDATE) FROM programs;
- D. SELECT NVL (MONTHS_BETWEEN (start_date, end_date), 'Ongoing') FROM
programs;
Answer: A,C
NEW QUESTION 173
Which two statements are true about sequences created in a single instance Oracle database? (Choose two.)
- A. When a database instance shuts down abnormally, the sequence numbers that have been cached but not used are available again when the instance is restarted
- B. When the MAXVALUElimit for the sequence is reached, it can be increased by using the ALTER SEQUENCEstatement.
- C. DELETE <sequencename>would remove a sequence from the database.
- D. The numbers generated by an explicitly defined sequence can only be used to insert data in one table.
- E. CURRVALis used to refer to the most recent sequence number that has been generated for a particular sequence.
Answer: B,E
Explanation:
Explanation/Reference:
References:
http://docs.oracle.com/cd/E11882_01/server.112/e41084/statements_2012.htm#SQLRF00817
https://docs.oracle.com/cd/A84870_01/doc/server.816/a76989/ch26.htm
NEW QUESTION 174
View the exhibit and examine the description of the DEPARTMENTSand EMPLOYEEStables.
The retrieve data for all the employees for their EMPLOYEE_ID, FIRST_NAME, and DEPARTMENT NAME, the following SQL statement was written:
SELECT employee_id, first_name, department_name
FROM employees
NATURAL JOIN departments;
The desired output is not obtained after executing the above SQL statement. What could be the reason for this?
- A. The EMPLOYEESand DEPARTMENTStables have more than one column with the same column name and data type.
- B. The DEPARTMENTStable is not used before the EMPLOYEEStable in the FROMclause.
- C. The table prefix is missing for the column names in the SELECTclause.
- D. The NATURAL JOINclause is missing the USINGclause.
Answer: A
Explanation:
Explanation/Reference:
Explanation:
Natural join needs only one column to be the same in each table. The EMPLOYEESand DEPARTMENTS tables have two columns that are the same (Department_ID and Manager_ID)
NEW QUESTION 175
Examine these statements which execute successfully:
Both statements display departments ordered by their average salaries.
Which two are true?
- A. Only the second statement will display departments with no employees.
- B. Only the first statement will execute successfully if you add E.AVG_SAL to the select list.
- C. Both statements will display departments with no employees.
- D. Only the second statement will execute successfully if you add E.AVG_SAL to the select list.
- E. Only the first statement will display departments with no employees.
- F. Both statements will execute successfully If you add E.AVG_SAL. to the select list.
Answer: C,D
NEW QUESTION 176
SELECT *
FROM bricks,colors;
Which two statements are true?
- A. It returns the number of rows in BRICKS plus the number of rows in COLORS.
- B. It returnsthe same rows as SELECT * FROM bricks CROSS JOIN colors.
- C. You can add a WHERE clause with filtering criteria.
- D. You can add an ON clause with a join condition.
- E. You can add a USING clause with a join condition.
Answer: B,C
NEW QUESTION 177
View the exhibit and examine the data in the PROJ_TASK_DETAILS table. (Choose the best answer.)
The PROJ_TASK_DETAILS table stores information about project tasks and the relation between them.
The BASED_ON column indicates dependencies between tasks.
Some tasks do not depend on the completion of other tasks.
You must generate a report listing all task IDs, the task ID of any task upon which it depends and the name of the employee in charge of the task upon which it depends.
Which query would give the required result?
- A. SELECT p.task_id, p.based_on, d.task_in_charge
FROM proj_task_details p JOIN proj_task_details d
ON (p.task_id = d.task_id); - B. SELECT p.task_id, p.based_on, d.task_in_charge
FROM proj_task_details p FULL OUTER JOIN proj_task_details d
ON (p.based_on = d.task_id); - C. SELECT p.task_id, p.based_on, d.task_in_charge
FROM proj_task_details p LEFT OUTER JOIN proj_task_details d
ON (p.based_on = d.task_id); - D. SELECT p.task_id, p.based_on, d.task_in_charge
FROM proj_task_details p JOIN proj_task_details d
ON (p.based_on = d.task_id);
Answer: C
NEW QUESTION 178
Which two are true about savepoints?
- A. They make uncommitted updates visible to other sessions owned by the? same user.
- B. You can commit updates done between two savepoints without committing other updates In the current transaction.
- C. They make uncommitted updates visible to sessions owned by other users.
- D. After issuing a savepoint, you can roll back to the savepoint name within the current transaction.
- E. After issuing a savepoint, you cannot roll back the complete transaction.
- F. A rollback to savepoint command issued before the start of a transaction results In an error.
Answer: A,D
NEW QUESTION 179
View the Exhibit and examine the data in the EMPLOYEES table.
Exhibit
You want to generate a report showing the total compensation paid to each employee to date.
You issue the following query:
What is the outcome?
- A. It executes successfully but does not give the correct output.
- B. It generates an error because the alias is not valid.
- C. It generates an error because the usage of the ROUNDfunction in the expression is not valid.
- D. It generates an error because the concatenation operator can be used to combine only two items.
- E. IT executes successfully and gives the correct output.
Answer: A
Explanation:
Explanation/Reference:
NEW QUESTION 180
You want to display the date for the first Monday of the next month and issue the following command:
What is the outcome?
- A. In generates an error because fmand double quotation marks should not be used in the format string.
- B. It executes successfully but does not return the correct result.
- C. In generates an error because TO_CHARshould be replaced with TO_DATE.
- D. It executes successfully and returns the correct result.
- E. In generates an error because rrrrshould be replaced by rrin the format string.
Answer: D
NEW QUESTION 181
Examine the description of the ENPLOYES table:
Which query requires explicit data type conversion?
- A. SELECT join_ date + '20' EROM employees;
- B. SELECT SUBSTR(join date, 1, 2) - 10 FROM employees;
- C. SELECT join_ date||''|| salary FROM employees;
- D. SELECT salary + '120.50' FROM employees;
- E. SELECT join _ date FROM employees WHERE join date > *10-02-2018';
Answer: E
NEW QUESTION 182
View the exhibit and examine the description of the DEPARTMENTSand EMPLOYEEStables.
The retrieve data for all the employees for their EMPLOYEE_ID, FIRST_NAME, and DEPARTMENT NAME, the following SQL statement was written:
SELECT employee_id, first_name, department_name
FROM employees
NATURAL JOIN departments;
The desired output is not obtained after executing the above SQL statement. What could be the reason for this?
- A. The EMPLOYEESand DEPARTMENTStables have more than one column with the same column name and data type.
- B. The DEPARTMENTStable is not used before the EMPLOYEEStable in the FROMclause.
- C. The table prefix is missing for the column names in the SELECTclause.
- D. The NATURAL JOINclause is missing the USINGclause.
Answer: A
Explanation:
Explanation/Reference:
Explanation:
Natural join needs only one column to be the same in each table. The EMPLOYEESand DEPARTMENTS tables have two columns that are the same (Department_ID and Manager_ID)
NEW QUESTION 183
Which two statements are true about sequences created in a single instance database? (Choose two.)
- A. DELETE <sequencename> would remove a sequence from the database
- B. When the MAXVALUE limit for a sequence is reached, you can increase the MAXVALUE limit by using the ALTER SEQUENCE statement
- C. The numbers generated by a sequence can be used only for one table
- D. CURRVAL is used to refer to the last sequence number that has been generated
- E. When a database instance shuts down abnormally, the sequence numbers that have been cached but not used would be available once again when the database instance is restarted
Answer: B,D
Explanation:
Gaps in the Sequence
Although sequence generators issue sequential numbers without gaps, this action occurs
independent of a commit or rollback. Therefore, if you roll back a statement containing a
sequence, the number is lost.
Another event that can cause gaps in the sequence is a system crash. If the sequence
caches values in memory, those values are lost if the system crashes.
Because sequences are not tied directly to tables, the same sequence can be used for
multiple tables.
However, if you do so, each table can contain gaps in the sequential numbers.
Modifying a Sequence
If you reach the MAXVALUE limit for your sequence, no additional values from the sequence are allocated and you will receive an error indicating that the sequence exceeds the MAXVALUE. To continue to use the sequence, you can modify it by using the ALTER SEQUENCE statement To remove a sequence, use the DROP statement:
DROP SEQUENCE dept_deptid_seq;
NEW QUESTION 184
......
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