Updated Jun-2025 Test Engine to Practice 1z1-071 Dumps & Practice Exam
Dumps Collection 1z1-071 Test Engine Dumps Training With 325 Questions
NEW QUESTION # 113
Which two statements are true about sequences created in a single instance Oracle database? (Choose two.)
- A. When the MAXVALUE limit for a sequence is reached, it can be increased by using the ALTER SEQUENCE statement.
- B. When a database instance shuts down abnormally, sequence numbers that have been cached but not used are available again when the instance is restarted.
- C. DELETE <sequencename> would remove a sequence from the database.
- D. CURRVAL is used to refer to the most recent sequence number that has been generated for a particular sequence.
- E. The numbers generated by an explicitly defined sequence can only be used to insert data in one table.
Answer: A,D
Explanation:
Explanation
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 # 114
Which two statements are true? (Choose two.)
- A. The user SYSTEM owns all the base tables and user-accessible views of the data dictionary.
- B. DICTIONARY is a view that contains the names of all the data dictionary views that the user can access.
- C. The USER_SYNONYMS view can provide information about private synonyms.
- D. The USER_OBJECTS view can provide information about the tables and views created by the user who queries the view.
- E. All the dynamic performance views prefixed with v$ are accessible to all the database users.
Answer: C,D
NEW QUESTION # 115
Examine these SQL statements which execute successfully:
Which two statements are true after execution?
- A. The foreign key constraint will be disabled.
- B. The foreign key constraint will be enabled and DEFERRED.
- C. The primary key constraint will be enabled and DEFERRED.
- D. The primary key constraint will be enabled and IMMEDIATE.
- E. The foreign key constraint will be enabled and IMMEDIATE.
Answer: C,E
NEW QUESTION # 116
View the exhibit and examine the structures of the EMPLOYEES and DEPARTMENTS tables.
EMPLOYEES
NameNull?Type
---------------------- -------------
EMPLOYEE_IDNOT NULLNUMBER(6)
FIRST_NAMEVARCHAR2(20)
LAST_NAMENOT NULLVARCHAR2(25)
HIRE_DATENOT NULLDATE
JOB_IDNOT NULLVARCHAR2(10)
SALARYNUMBER(10,2)
COMMISSIONNUMBER(6,2)
MANAGER_IDNUMBER(6)
DEPARTMENT_IDNUMBER(4)
DEPARTMENTS
NameNull?Type
---------------------- -------------
DEPARTMENT_IDNOT NULLNUMBER(4)
DEPARTMENT_NAMENOT NULLVARCHAR2(30)
MANAGER_IDNUMBER(6)
LOCATION_IDNUMBER(4)
You want to update EMPLOYEES table as follows:
You issue the following command:
SQL> UPDATE employees
SET department_id
(SELECT department_id
FROM departments
WHERE location_id = 2100),
(salary, commission)
(SELECT 1.1*AVG(salary), 1.5*AVG(commission)
FROM employees, departments
WHERE departments.location_id IN(2900, 2700, 2100))
WHERE department_id IN
(SELECT department_id
FROM departments
WHERE location_id = 2900
OR location_id = 2700;
What is outcome?
- A. It executes successfully but does not give the desired update
- B. It generates an error because multiple columns (SALARY, COMMISSION) cannot be specified together in an UPDATE statement.
- C. It executes successfully and gives the desired update
- D. It generates an error because a subquery cannot have a join condition in a UPDATE statement.
Answer: A
NEW QUESTION # 117
Examine the description of the EMPLOYEES table
Which two queries return the highest salary in the table?
- A. SELECT MAX (salary)
FROM employees
GROUP BY department_id; - B. SELECT MAX (salary)
FROM employees
GROUP BY department_id
HAVING MAX (salary) = MAX (MAX (salary)); - C. SELECT department_id, MAX(salary)
FROM employees
GROUP BY department_id; - D. SELECT MAX (MAX (salary))
FROM employees
GROUP BY department_id; - E. SELECT MAX (salary)
FROM employees;
Answer: E
Explanation:
Query B will return the highest salary in the table without grouping by department. It simply selects the maximum value for the salary column across the entire table.
Query C and D are incorrect because the GROUP BY clause will return the highest salary for each department, not the single highest salary in the entire table.
Query E is incorrect because MAX(MAX(salary)) is not a valid use of aggregate functions and will result in an error.
References:
* Oracle Documentation on Aggregate Functions: Aggregate Functions
NEW QUESTION # 118
Examine the description of the sales table.
The sales table has 55,000 rows.
Examine this statements:
Which two statements are true?
- A. SALES1 created with 55, 000 rows
- B. SALES1 has PRIMARY KEY and UNIQUE constraints on any selected columns which had those constraints in the SALES table.
- C. SALES1 created with 1 row.
- D. SALES1 has NOT NULL constraints on any I selected columns which had those constraints I in the SALES table.
- E. SALES1 created with no rows.
Answer: A,D
Explanation:
Assuming the statement involves creating a new table SALES1 from the existing SALES table:
* B. SALES1 created with 55,000 rows: If the statement involved creating SALES1 by selecting all rows from SALES (such as with a CREATE TABLE AS SELECT operation), then all 55,000 rows would be copied if no WHERE clause limited the selection.
* E. SALES1 has NOT NULL constraints on any selected columns which had those constraints in the SALES table: When creating a table using the CREATE TABLE AS SELECT syntax, any NOT NULL constraints on columns in the original table will also apply to the new table.
Incorrect options:
* A: PRIMARY KEY and UNIQUE constraints are not automatically copied with a CREATE TABLE AS SELECT; they must be explicitly redefined.
* C: The table is created with rows if the original SELECT statement (assumed here) selected rows.
* D: The statement about creating a table with 1 row is incorrect based on the assumed full selection of the original table's rows.
NEW QUESTION # 119
View the Exhibit and examine the structure of the ORDER_ITEMS table. (Choose the best answer.)
You must select the ORDER_ID of the order that has the highest total value among all the orders in the ORDER_ITEMS table.
Which query would produce the desired result?
- A. SELECT order_idFROM order_itemsWHERE (unit_price*quantity) = (SELECT MAX(unit_price*quantity)FROM order_itemsGROUP BY order_id)
- B. SELECT order_idFROM order_itemsWHERE(unit_price*quantity)
MAX(unit_price*quantity)GROUP BY order_id); - C. SELECT order_idFROM order_itemsGROUP BY order_idHAVING
SUM(unit_price*quantity) = (SELECT MAX (SUM(unit_price*quantity))FROM order_items GROUP BY order_id); - D. SELECT order_idFROM order_itemsWHERE(unit_price*quantity) = (SELECT MAX (SUM(unit_price*quantity)FROM order_items) GROUP BY order_id);
Answer: C
NEW QUESTION # 120
SCOTTis a user in the database.
Evaluate the commands issued by the DBA:
Which statement is true regarding the execution of the above commands?
- A. Statement 1 would not execute because the IDENTIFIED BY <password>clause is missing.
- B. Statement 1 would not execute because the WITH GRANToption is missing.
- C. Statement 3 would not execute because role and system privileges cannot be granted together in a single GRANTstatement.
- D. Statement 2 would not execute because system privileges and object privileges cannot be granted together in a single GRANTcommand.
Answer: D
NEW QUESTION # 121
Examine the structure proposed for the TRANSACTIONS table:
Which two statements are true regarding the storage of data in the above table structure?
(Choose two.)
- A. The CUST_STATUS column would allow storage of data up to the maximum VARCHAR2 size of 4,000 characters.
- B. The TRANS_VALIDITY column would allow storage of a time interval in days, hours, minutes, and seconds.
- C. The CUST_CREDIT_VALUE column would allow storage of positive and negative integers.
- D. The TRANS_DATE column would allow storage of dates only in the dd-mon-yyyy format.
Answer: B,C
NEW QUESTION # 122
Examine these statements executed in a single Oracle session:
Which three statements are true?
- A. There is no row containing pencil.
- B. The code for pen is 10.
- C. The code for fountain pen is 3.
- D. There is no row containing pen.
- E. The code for pen is 1.
- F. There is no row containing fountain pen.
Answer: A,C,E
NEW QUESTION # 123
View the Exhibit and examine the structure of the ORDER_ITEMS table.
You must select the ORDER_ID of the order that has the highest total value among all the orders in the ORDER_ITEMS table.
Which query would produce the desired result?
SELECT order_id
- A. FROM order_items
GROUP BY order_id
HAVING SUM(unit_price*quantity) = (SELECT MAX(SUM(unit_price*quantity)) FROM order_items GROUP BY order_id); SELECT order_id - B. FROM order_items
WHERE(unit_price*quantity) = MAX(unit_price*quantity)
GROUP BY order_id;
SELECT order_id - C. FROM order_items
WHERE (unit_price*quantity) = (SELECT MAX(unit_price*quantity)
FROM order_items
GROUP BY order_id) - D. FROM order_items
WHERE(unit_price*quantity) = (SELECT MAX(unit_price*quantity)
FROM order_items)
GROUP BY order_id;
SELECT order_id
Answer: A
NEW QUESTION # 124
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. ORDERBY2, 1
- B. ORDER BY "Last Name"
- C. ORDER BY CUSTNO
- D. ORDER BY 2, cust_id
- E. ORDER BY"CUST NO"
Answer: A,B,D
Explanation:
NEW QUESTION # 125
Examine the commands used to create DEPARTMENT_DETAILSand COURSE_DETAILS:
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 # 126
Examine the command:
What does ON DELETE CASCADE imply?
- A. When the BOOKStable is dropped, the BOOK_TRANSACTIONStable is dropped.
- B. When a value in the BOOKS.BOOK_IDcolumn is deleted, the corresponding value is updated in the BOOKS_TRANSACTIONS.BOOK_IDcolumn.
- C. When a row in the BOOKStable is deleted, the rows in the BOOK_TRANSACTIONStable whose BOOK_IDmatches that of the deleted row in the BOOKStable are also deleted.
- D. When the BOOKStable is dropped, all the rows in the BOOK_TRANSACTIONStable are deleted but the table structure is retained.
Answer: C
NEW QUESTION # 127
Which two statements are true about the rules of precedence for operators? (Choose two.)
- A. The + binary operator has the highest precedence in an expression in a SQL statement
- B. Multiple parentheses can be used to override the default precedence of operators in an expression
- C. Arithmetic operators with equal precedence area evaluated from left to right within an expression
- D. NULLS influence the precedence of operators in an expression
- E. The concatenation operator | | is always evaluated before addition and subtraction in an expression
Answer: A,B
Explanation:
Explanation/Reference: https://docs.oracle.com/cd/B19306_01/server.102/b14200/operators001.htm
NEW QUESTION # 128
Which two statements are true about substitution variables?
- A. A substitution variable used to prompt for a column name must be endorsed in double quotation marks.
- B. A substitution variable can be used with any clause in a SELECT statement.
- C. A substitution variable prefixed with & always prompts only once for a value in a session.
- D. A substitution variable used to prompt for a column name must be endorsed in single quotation marks.
- E. A substitution variable can be used only in a SELECT statement.
- F. A substitution variable prefixed with 6 prompts only once for a value in a session unless is set to undefined in the session.
Answer: B,C
Explanation:
Substitution variables in Oracle are used to replace a value dynamically during the execution of SQL statements. The behavior of these variables is well-documented:
* C. A substitution variable prefixed with & always prompts only once for a value in a session: This is true. In a session, when you use a single ampersand (&), SQL*Plus or SQL Developer will prompt for the value the first time the variable is encountered. The value for this variable will then be reused for the remainder of the session unless it is redefined.
* D. A substitution variable can be used with any clause in a SELECT statement: Substitution variables can be placed in any part of a SQL statement, including the SELECT, WHERE, GROUP BY, ORDER BY, etc. They are not limited to any specific clause.
References:
* Oracle SQL*Plus User's Guide and Reference, which discusses substitution variables.
NEW QUESTION # 129
Which two are true about virtual columns?
- A. They cannot have a data type explicitly specified.
- B. They can be referenced in the set clause of an update statement as the name of the column To be updated.
- C. They can be referenced in the column expression of another virtxial column.
- D. They can be indexed.
- E. They can be referenced In the where clause of an update or debete statement.
Answer: A,D
Explanation:
Regarding the properties and capabilities of virtual columns in Oracle Database:
* C. They can be indexed: In Oracle, virtual columns can indeed be indexed. This allows for performance optimization on queries that utilize these columns, despite the fact that their values are derived and not stored physically.
* D. They cannot have a data type explicitly specified: The data type of a virtual column is derived from the expression used to define it. Therefore, it is not specified explicitly but is inferred from the expression itself.
Incorrect options:
* A: Virtual columns cannot be referenced in the WHERE clause of UPDATE or DELETE statements because they are not stored and cannot be individually modified.
* B: Virtual columns cannot be referenced in the SET clause of an UPDATE statement since they are derived from other column values and cannot be updated directly.
* E: Virtual columns cannot reference other virtual columns in their expressions due to the potential for recursive and complex dependencies.
NEW QUESTION # 130
Examine the description of the CUSTOMERS table:
Which two SELECT statements will return these results:
CUSTOMER_ NAME
--------------------
Mandy
Mary
- A. SELECT customer_ name FROM customers WHERE UPPER (customer_ name ) LIKE 'MA*. ;
- B. SELECT customer_ name FROM customers WHERE customer name LIKE 'Ma%' ;
- C. SELECT customer_ name FROM customers WHERE customer name LIKE 'Ma*';
- D. SELECT customer_ name FROM customers WHERE customer_ name KIKE .*Ma*';
- E. SELECT customer_ name FROM customers WHERE customer_ name LIKE ' % a % ' ;
- F. SELECT customer_ name FROM customers WHERE customer_ name='*Ma*';
- G. SELECT customer_ name FROM customers WHERE UPPER (customer name) LIKE 'MA&';
Answer: A,B
Explanation:
The SQL LIKE operator is used in a WHERE clause to search for a specified pattern in a column. Here are the evaluations of the options:
* A: The pattern ' % a % ' will match any customer names that contain the letter 'a' anywhere in the name, not necessarily those starting with 'Ma'.
* B: This is correct as 'Ma%' will match any customer names that start with 'Ma'.
* C: In SQL, the wildcard character is '%' not '*', therefore, the pattern 'Ma' is incorrect.
* D: This is the correct syntax. 'UPPER (customer_ name ) LIKE 'MA%'' will match customer names starting with 'Ma' in a case-insensitive manner.
* E: Again, '*' is not a valid wildcard character in SQL.
* F: The character '&' is not a wildcard in SQL.
* G: The operator 'KIKE' is a typo, and '.Ma' is not valid SQL pattern syntax.
NEW QUESTION # 131
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 VARCHAR2(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 # 132
......
Oracle 1z0-071 certification exam is a multiple-choice exam that consists of 73 questions. You have 105 minutes to complete the exam, and the passing score is 63%. 1z1-071 exam is available in multiple languages, including English, Japanese, and Simplified Chinese.
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