New 2025 Realistic Free Oracle 1z1-071 Exam Dump Questions and Answer
1z1-071 Practice Test Engine: Try These 323 Exam Questions
Prerequisites
There are no official requirements for passing the Oracle 1Z0-071 exam. However, it is recommended that the students have a good grasp of SQL syntax rules. They also need to be able to use general SQL functions, identify the result of fundamental DDL operations, and know how to implement SQL statements and functions.
NEW QUESTION # 63
Examine this partial query:
SELECT ch.channel_type, t.month, co.country_code, SUM(s.amount_sold) SALES FROM sales s, times t, channels ch, countries co WHERE s.time_ id = t.time id AND s.country_ id = co. country id AND s. channel id = ch.channel id AND ch.channel type IN ('Direct Sales', 'Internet') AND t.month IN ('2000-09', '2000-10') AND co.country code IN ('GB', 'US') Examine this output:
Which GROUP BY clause must be added so the query returns the results shown?
- A. GROUP BY ch.channel_type,ROLLUP (t month, co. country_ code) ;
- B. GROUP BYch. channel_ type, t.month,ROLIUP (co. country_ code) ;
- C. GROUP BY CUBE (ch. channel_ type, t .month, co. country code);
- D. GROUP BY ch.channel_type, t.month, co.country code;
Answer: A
NEW QUESTION # 64
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 has PRIMARY KEY and UNIQUE constraints on the selected columns which had those constraints in the SALES table.
- C. It will have NOT NULL constraints on the selected columns which had those constraints in the SALES table.
- D. It will not be created because the column-specified names in the SELECT and CREATE TABLE clauses do not match.
- E. It will not be created because of the invalid WHERE clause.
Answer: A,C
NEW QUESTION # 65
Which statement is true regarding external tables?
- A. ORACLE_LOADER and ORACLE_DATAPUMP have exactly the same functionality when used with an external table.
- B. The default REJECT LIMIT for external tables is UNLIMITED.
- C. The data and metadata for an external table are stored outside the database.
- D. The CREATE TABLE AS SELECT statement can be used to upload data into regular table in the database from an external table.
Answer: D
Explanation:
References:
https://docs.oracle.com/cd/B28359_01/server.111/b28310/tables013.htm
NEW QUESTION # 66
Which statements are correct regarding indexes? (Choose all that apply.)
- A. When a table is dropped, the corresponding indexes are automatically dropped.
- B. Indexes should be created on columns that are frequently referenced as part of any expression.
- C. For each DML operation performed, the corresponding indexes are automatically updated.
- D. A non-deferrable PRIMARY KEY or UNIQUE KEY constraint in a table automatically attempts to creates a unique index.
Answer: A,C,D
Explanation:
Explanation
References:
http://viralpatel.net/blogs/understanding-primary-keypk-constraint-in-oracle/
NEW QUESTION # 67
Which three are true about multitable INSERTstatements? (Choose three.)
- A. They can be performed on remote tables.
- B. They can be performed only by using a subquery.
- C. They can be performed on views.
- D. They can be performed on relational tables.
- E. They can insert each computed row into more than one table.
- F. They can be performed on external tables using SQL* Loader.
Answer: B,D,F
Explanation:
Explanation/Reference: https://www.akadia.com/services/ora_multitable_insert.html
NEW QUESTION # 68
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 execute and restrict modifications to the columns specified in the SELECT statement.
- B. It would not execute because two tables cannot be referenced in a single UPDATE statement.
- C. It would not execute because a subquery cannot be used in the WHERE clause of an UPDATE statement.
- D. It would not execute because a SELECT statement cannot be used in place of a table name.
Answer: A
NEW QUESTION # 69
Examine the description of the CUSTOMERS table:
Which three statements will do an implicit conversion?
- A. SELECT * FROM customers WHERE insert_date'01-JAN-19';
- B. SELECT * FROM customers WHERE customer_id=0001;
- C. SELECT * FROM customers WHERE insert_date=DATE'2019-01-01';
- D. SELECT * FROM customers WHERE TO_DATE(insert_date)=DATE'2019-01-01';
- E. SELECT * FROM customers WHERE TO_CHAR(customer_id)='0001';
- F. SELECT * FROM customers WHERE customer_id='0001';
Answer: A,D,F
NEW QUESTION # 70
Examine the structure of the BOOKS_ TRANSACTIONS table:
Examine the SQL statement:
Which statement is true about the outcome?
- A. It displays details for members who have borrowed before today's date with either RM as TRANSACTION_TYPE or MEMBER_ID as A101 and A102.
- B. It displays details for members who have borrowed before today with RM as TRANSACTION_TYPE and the details for members A101 or A102.
- C. It displays details only for members who have borrowed before today with RM as TRANSACTION_TYPE.
- D. It displays details for only members A101and A102 who have borrowed before today with RM as TRANSACTION_TYPE.
Answer: C
NEW QUESTION # 71
Examine this query:
SELECT 2 FROM dual d1 CROSS JOIN dual d2 CROSS JOIN dual d3;
What is returned upon execution?
- A. 3 rows
- B. 1 row
- C. an error
- D. 6 rows
- E. 8 rows
- F. 0 rows
Answer: B
Explanation:
The given query is using the CROSS JOIN clause, which produces a Cartesian product of the tables involved.
The DUAL table in Oracle is a special one-row, one-column table present by default in all Oracle database installations. When you cross join the DUAL table with itself multiple times without any where clause to limit the rows, the result is a multiplication of the row count for each cross-joined instance.
Since DUAL has a single row, cross-joining it with itself any number of times will still result in a single row being returned. The SELECT 2 part of the query simply dictates that the number 2 will be the value in the column of this single row.
So, the result of this query will be one row with a single column containing the value 2.
References:
* Oracle Database SQL Language Reference 12c, especially sections on join operations and the DUAL table.
NEW QUESTION # 72
Examine the description of the BOOKS table:
The table has 100 rows.
Examine this sequence of statements issued in a new session;
INSERT INTO BOOKS VALUES ('ADV112' , 'Adventures of Tom Sawyer', NULL, NULL);
SAVEPOINT a;
DELETE from books;
ROLLBACK TO SAVEPOINT a;
ROLLBACK;
Which two statements are true?
- A. The first ROLLBACK command restores the 101 rows that were deleted and commits the inserted row.
- B. The first ROLLBACK command restores the 101 rows that were deleted, leaving the inserted row still to be committed.
- C. The second ROLLBACK command undoes the insert.
- D. The second ROLLBACK command does nothing.
- E. The second ROLLBACK command replays the delete.
Answer: B,C
NEW QUESTION # 73
View the exhibit and examine the description of SALES and PROMOTIONS tables.
You want to delete rows from the SALES table, where the PROMO_NAME column in the PROMOTIONS table has either blowout sale or everyday low price as values.
Which three DELETE statements are valid? (Choose three.)
- A. DELETEFROM salesWHERE promo_id IN (SELECT promo_idFROM promotionsWHERE promo_name IN = 'blowout sale','everyday low price'));
- B. DELETEFROM salesWHERE promo_id = (SELECT promo_idFROM promotionsWHERE promo_name = 'blowout sale')OR promo_id = (SELECT promo_idFROM promotionsWHERE promo_name = 'everyday low price')
- C. DELETEFROM salesWHERE promo_id = (SELECT promo_idFROM promotionsWHERE promo_name = 'blowout sale')OR promo_name = 'everyday low price');
- D. DELETEFROM salesWHERE promo_id = (SELECT promo_idFROM promo_name = 'blowout sale')AND promo_id = (SELECT promo_idFROM promotionsWHERE promo_name = 'everyday low price')FROM promotionsWHERE promo_name = 'everyday low price');
Answer: A,B,C
NEW QUESTION # 74
Which statement is true regarding external tables?
- A. ORACLE_LOADER and ORACLE_DATAPUMP have exactly the same functionality when used with an external table.
- B. The default REJECT LIMIT for external tables is UNLIMITED.
- C. The data and metadata for an external table are stored outside the database.
- D. The CREATE TABLE AS SELECT statement can be used to upload data into regular table in the database from an external table.
Answer: D
Explanation:
Explanation
References:
https://docs.oracle.com/cd/B28359_01/server.111/b28310/tables013.htm
NEW QUESTION # 75
Examine the commands used to create DEPARTMENT_DETAILSand COURSE_DETAILS:
SQL>CREATE TABLE DEPARTMENT_DETAILS
( DEPARTMENT_ID NUMBER PRIMARY KEY,
DEPARTMENT_NAME VARCHAR2(50),
HOD VARCHAR2(50));
SQL>CREATE TABLE COURSE_DETAILS
(COURSE_ID NUMBER PRIMARY KEY,
COURSE_NAME VARCHAR2(50),
DEPARTMENT_ID VARCHAR2(50));
You want to generate a list of all department IDs along with any course IDs that may have been assigned to them.
Which SQL statement must you use?
- A. SELECT d.department_id, c.course_id FROM department_details d RIGHT OUTER JOIN course_details c ON (d.department_id=c. department_id);
- B. SELECT d.department_id, c.course_id FROM department_details d RIGHT OUTER JOIN course_details c ON (c.department_id=d. department_id);
- C. SELECT d.department_id, c.course_id FROM course_details c LEFT OUTER JOIN department_details d ON (c.department_id=d. department_id);
- D. SELECT d.department_id, c.course_id FROM department_details d LEFT OUTER JOIN course_details c ON (d.department_id=c. department_id);
Answer: D
NEW QUESTION # 76
View the exhibit and examine the structure of the SALES, CUSTOMERS, PRODUCTS and TIMES tables.
The PROD_ID column is the foreign key in the SALES table referencing the PRODUCTS table.
The CUST_ID and TIME_ID columns are also foreign keys in the SALES table referencing the CUSTOMERS and TIMES tables, respectively.
Examine this command:
CREATE TABLE new_sales (prod_id, cust_id, order_date DEFAULT SYSDATE)
AS
SELECT prod_id, cust_id, time_id
FROM sales;
Which statement is true?
- A. The NEW_SALES table would get created and all the NOT NULL constraints defined on the selected columns from the SALES table would be created on the corresponding columns in the NEW_SALES table.
- B. The NEW_SALES table would not get created because the column names in the CREATE TABLE command and the SELECT clause do not match.
- C. The NEW_SALES table would not get created because the DEFAULT value cannot be specified in the column definition.
- D. The NEW_SALES table would get created and all the FOREIGN KEY constraints defined on the selected columns from the SALES table would be created on the corresponding columns in the NEW_SALES table.
Answer: A
NEW QUESTION # 77
Which three statements are true about the DESCRIBE command?
- A. It displays the NOT NULL constraint for any columns that have that constraint.
- B. It displays the PRIMARY KEY constraint for any column or columns that have that constraint.
- C. It can be used from SQL Developer.
- D. It can be used only from SQL*Plus.
- E. It displays all constraints that are defined for each column.
- F. It can be used to display the structure of an existing view.
Answer: A,C,F
NEW QUESTION # 78
Which statement is true about an inner join specified in the WHERE clause of a query?
- A. It is applicable for equijoin and nonequijoin conditions.
- B. It is applicable for only equijoin conditions.
- C. It requires the column names to be the same in all tables used for the join conditions.
- D. It must have primary-key and foreign-key constraints defined on the columns used in the join condition.
Answer: A
NEW QUESTION # 79
Examine the description of the PRODUCT_INFORMATION table:
Which query retrieves the number of products with a null list price?
- A. SELECT COUNT (DISTINCT list_price) FROM product_information WHERE list_price IS NULL;
- B. SELECT COUNT (list_price) FROM product_information WHERE list_price IS NULL;
- C. SELECT COUNT(NVL(list_price, 0)) FROM product_information WHERE list_price IS NULL;
- D. SELECT COUNT (list_price) FROM product_information WHERE list_price = NULL;
Answer: C
NEW QUESTION # 80
View the Exhibit and examine the details of the PRODUCT_INFORMATION table. (Choose two.)
Evaluate this SQL statement:
SELECT TO_CHAR(list_price,'$9,999')
From product_information;
Which two statements are true regarding the output? (Choose two.)
- A. A row whose LIST_PRICE column contains value 11235.90 would be displayed as #######.
- B. A row whose LIST_PRICE column contains value 11235.90 would be displayed as $1,123.
- C. A row whose LIST_PRICE column contains value 1123.90 would be displayed as $1,123.
- D. A row whose LIST_PRICE column contains value 1123.90 would be displayed as $1,124.
Answer: A,D
NEW QUESTION # 81
Examine the data in the NEW_EMPLOYEES table:
Examine the data in the EMPLOYEES table:
You want to:
1. Update existing employee details in the EMPLOYEES table with data from the NEW EMPLOYEES
table.
2. Add new employee detail from the NEW_ EMPLOYEES able to the EMPLOYEES table.
Which statement will do this:
- A. MERGE INTO employees e
USING new employees ne
ON (e.employee_id = ne.employee_id)
WHEN FOUND THEN
UPDATE SET e.name =ne.name, e.job_id=ne.job_id, e.salary =ne.salary
WHEN NOT FOUND THEN
INSERT VALUES (ne.employee_id,ne.name,ne.job_id,ne.salary) ; - B. MERGE INTO employees e
USING new_employees n
WHERE e.employee_id = ne.employee_id
WHEN FOUND THEN
UPDATE SET e.name=ne.name,e.job_id =ne.job_id, e.salary=ne.salary
WHEN NOT FOUND THEN
INSERT VALUES (ne.employee_ id,ne.name,ne.job id,ne.salary) ; - C. MERGE INTO employees e
USING new employees ne
WHERE e.employee_id = ne.employee_ id
WHEN MATCHED THEN
UPDATE SET e.name = ne.name, e.job_id = ne.job_id,e.salary =ne. salary
WHEN NOT MATCHED THEN
INSERT VALUES (ne. employee_id,ne.name, ne.job_id,ne.salary) ; - D. MERGE INTO employees e
USING new_employees n
ON (e.employee_id = ne.employee_id)
WHEN MATCHED THEN
UPDATE SET e.name = ne.name, e.job id = ne.job_id,e.salary =ne. salary
WHEN NOT MATCHED THEN
INSERT VALUES (ne. employee_id,ne.name,ne.job_id,ne.salary);
Answer: D
NEW QUESTION # 82
Evaluate the following query:
What would be the outcome of the above query?
- A. It executes successfully and introduces an 'sat the end of each promo_namein the output.
- B. It produces an error because flower braces have been used.
- C. It executes successfully and displays the literal " {'s start date was \> "for each row in the output.
- D. It produces an error because the data types are not matching.
Answer: A
NEW QUESTION # 83
Examine these statements:
CREATE TABLE alter_test (c1 VARCHAR2(10), c2 NUMBER(10));
INSERT INTO alter_test VALUES ('123', 123);
COMMIT;
Which is true ahout modifyIng the columns in AITER_TEST?
- A. c1 can be changed to VARCHAR2(5) and c2 can be changed to NUMBER (12,2).
- B. c2 can be changed to VARCHAR2(10) but c1 cannot be changed to NUMBER (10).
- C. c1 can be changed to NUMBER(10) and c2 can be changed to VARCHAN2 (10).
- D. c1 can be changed to NUMBER(10) but c2 cannot be changed to VARCHAN2 (10).
- E. c2 can be changed to NUMBER(5) but c1 cannot be changed to VARCHAN2 (5).
Answer: A
NEW QUESTION # 84
Examine the description of the EMPLOYEES table:
The session time zone is the same as the database server
Which two statements will list only the employees who have been working with the company for more than five years?
- A. SELECT employee_ name FROM employees WHERE (SYSNAYW - hire_ data / 12> 3
- B. SELECT employee_ name FROM employees WHERE (CUARENT_ DATE - hire_ data / 365>5
- C. SELECT employee_ name FROM employees WHERE (SYSNAYW - hire_ data / 12> 3
- D. SELECT employee_ name FROM employees WHERE (CUNACV_ DATE - hire_ data / 12> 3
- E. SELECT employee_ name FROM employees WHERE (SYSTIMESTAMP - hire_ data) / 365>
- F. SELECT employee_ name FROM employees WHERE (SYSDATE - hire_ data) / 365>5
Answer: B,F
NEW QUESTION # 85
You must create a SALES table with these column specifications and data types: (Choose the best answer.) SALESID: Number
STOREID: Number
ITEMID: Number
QTY: Number, should be set to 1 when no value is specified
SLSDATE: Date, should be set to current date when no value is specified PAYMENT: Characters up to 30 characters, should be set to CASH when no value is specified Which statement would create the table?
- A. CREATE TABLE Sales
(SALESID NUMBER (4),
STOREID NUMBER (4),
ITEMID NUMBER (4),
QTY NUMBER DEFAULT = 1,
SLSDATE DATE DEFAULT 'SYSDATE',
PAYMENT VARCHAR2(30) DEFAULT CASH); - B. CREATE TABLE Sales
(SALESID NUMBER (4),
STOREID NUMBER (4),
ITEMID NUMBER (4),
QTY NUMBER DEFAULT = 1,
SLSDATE DATE DEFAULT SYSDATE,
PAYMENT VAR
CHAR2(30) DEFAULT = "CASH"); - C. Create Table sales
(salesid NUMBER (4),
Storeid NUMBER (4),
Itemid NUMBER (4),
QTY NUMBER DEFAULT 1,
Slsdate DATE DEFAULT SYSDATE,
payment VARCHAR2(30) DEFAULT 'CASH'); - D. CREATE TABLE Sales
(SALESID NUMBER (4),
STOREID
NUMBER (4),
ITEMID NUMBER (4),
qty NUMBER DEFAULT = 1,
SLSDATE DATE DEFAULT SYSDATE,
PAYMENT VARCHAR2(30) DEFAULT = "CASH");
Answer: C
NEW QUESTION # 86
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