1z1-071 Exam Dumps Pass with Updated Dec-2021 Tests Dumps [Q123-Q140]

1z1-071 Exam Dumps Pass with Updated Dec-2021 Tests Dumps

1z1-071 exam questions for practice in 2021 Updated 305 Questions

Topics of Oracle 1Z0-071: Oracle Database SQL Exam

The Oracle 1Z0-071 dumps tests the abilities and knowledge of the candidates by checking the following objectives:

Relational Database concepts

• Relating clauses in SQL Select Statement to Components of an ERD
• Explaining the theoretical and physical aspects of a relational database
• Explaining the relationship between a database and SQL

Retrieving Data using the SQL SELECT Statement

• Using The SQL SELECT statement
• Using concatenation operator, literal character strings, alternative quote operator, and the DISTINCT keyword
• Using Arithmetic expressions and NULL values in the SELECT statement
• Using Column aliases

Restricting and Sorting Data

• Limiting Rows Returned in a SQL Statement
• Using the DEFINE and VERIFY commands
• Using Substitution Variables
• Applying Rules of precedence for operators in an expression
• Sorting Data

Using Single-Row Functions to Customize Output

• Manipulating strings with character functions in SQL SELECT and WHERE clauses
• Performing arithmetic with date data
• Manipulating dates with the date function
• Manipulating numbers with the ROUND, TRUNC and MOD functions

Using Conversion Functions and Conditional Expressions

• Applying the NVL, NULLIF, and COALESCE functions to data
• Nesting multiple functions
• Understanding implicit and explicit data type conversion
• Using the TO_CHAR, TO_NUMBER, and TO_DATE conversion functions

Reporting Aggregated Data Using Group Functions

• Using Group Functions
• Restricting Group Results
• Creating Groups of Data

Displaying Data from Multiple Tables

• Use of non-equijoins
• Using Various Types of Joins
• Using OUTER joins
• Understanding and Using Cartesian Products
• Using Self-joins

Using Subqueries to Solve Queries

• Using Multiple Row Subqueries
• Update and delete rows using correlated subqueries
• Using Single Row Subqueries

Using SET Operators

• Matching the SELECT statements
• Using The MINUS operator
• Using The INTERSECT operator
• Using The UNION and UNION ALL operators
• Using the ORDER BY clause in set operations

Managing Tables using DML statements

• Performing multi table Inserts
• Performing Merge statements
• Managing Database Transactions
• Perform Insert, Update and Delete operations
• Controlling transactions

Managing Indexes Synonyms and Sequences

• Managing Indexes
• Managing Synonyms
• Managing Sequences

Use DDL to manage tables and their relationships

• Describing and Working with Columns and Data Types
• Creating and using Temporary Tables
• Creating and using external tables
• Describing and Working with Tables
• Truncating tables
• Dropping columns and setting columns UNUSED
• Managing Constraints
• Creating tables

Managing Views

• Granting privileges on tables
• Distinguishing between granting privileges and roles
• Managing Views
• Differentiating system privileges from object privileges
• Controlling User Access

Managing Objects with Data Dictionary Views

• Working with INTERVAL data types
• Using data dictionary views
• Managing Data in Different Time Zones
• Working with CURRENT_DATE, CURRENT_TIMESTAMP,and LOCALTIMESTAMP

 

NEW QUESTION 123
Which three are true about the CREATE TABLE command? (Choose three.)

• A. The owner of the table should have space quota available on the tablespace where the table is defined
• B. It implicitly rolls back any pending transactions
• C. The owner of the table must have the UNLIMITED TABLESPACE system privilege
• D. It can include the CREATE..INDEX statement for creating an index to enforce the primary key constraint
• E. A user must have the CREATE ANY TABLE privilege to create tables
• F. It implicitly executes a commit

Answer: C,E,F

 

NEW QUESTION 124
Examine the structure of the EMPLOYEES table.

You must display the details of employees who have manager with MANAGER_ID 100, who were hired in the past 6 months and who have salaries greater than 10000.
Which query would retrieve the required result?

• A. SELECT last_name, hire_date, salaryFROM employeesWHERE manager_id = (SELECT employee_id FROM employees WHERE employee_id = 100)UNION ALL(SELECT last_name, hire_date, salaryFROM employeesWHERE hire_date > SYSDATE-180INTERSECTSELECT last_name, hire_date, salaryFROM employeesWHERE salary > 10000);
• B. SELECT last_name, hire_date, salaryFROM employeesWHERE salary > 10000UNION ALLSELECT last_name, hire_date, salaryFROM employeesWHERE manager_ID = (SELECT employee_id FROM employees WHERE employee_id = 100)INTERSECTSELECT last_name, hire_date, salaryFROM employeesWHERE hire_date > SYSDATE-180;
• C. (SELECT last_name, hire_date, salaryFROM employeesWHERE salary > 10000UNION ALLSELECT last_name, hire_date, salaryFROM employeesWHERE manager_ID = (SELECT employee_id FROM employees WHERE employee_id = 100))UNIONSELECT last_name, hire_date, salaryFROM employeesWHERE hire_date > SYSDATE-180;
• D. SELECT last_name, hire_date, salaryFROM employeesWHERE manager_id = (SELECT employee_id FROM employees WHERE employee_id = '100')UNIONSELECT last_name, hire_date, salaryFROM employeesWHERE hire_date > SYSDATE-180INTERSECTSELECT last_name, hire_date, salaryFROM employeesWHERE salary > 10000;

Answer: D

 

NEW QUESTION 125
View the Exhibit and examine the data in the employees table.
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 generates an error because the usage of the round function in the expression is not valid
• B. It executes successfully but does not give the correct output.
• C. It generates an error because the concatenation operator can be used to combine only two items.
• D. It generates an error because the alias is not valid.
• E. It executes successfully and gives the correct output.

Answer: B

 

NEW QUESTION 126
Examine the description of the PRODUCT_STATUStable:

The STATUScolumn contains the values IN STOCKor OUT OF STOCKfor each row.
Which two queries will execute successfully? (Choose two.)

• A.
• B.
• C.
• D.
• E.
• F.

Answer: A,D

 

NEW QUESTION 127
Which three statements are true about Structured Query Language (SQL)?

• A. It provides independence for logical data structures being manipulated from the underlying physical data storage
• B. It is used to define encapsulation and polymorphism for a relational table.
• C. It requires that data be contained in hierarchical data storage.
• D. It best supports relational databases.
• E. It guarantees atomicity, consistency, isolation, and durability (ACID) features.
• F. It is the only language that can be used for both relational and object-oriented databases.

Answer: A,C,E

 

NEW QUESTION 128
Which two statements are true about sequences created in a single instance Oracle database? (Choose two.)

• A. When a database instance shuts down abnormally, sequence numbers that have been cached but not used are available again when the instance is restarted.
• B. The numbers generated by an explicitly defined sequence can only be used to insert data in one table.
• C. When the MAXVALUE limit for a sequence is reached, it can be increased by using the ALTER SEQUENCE statement.
• D. DELETE <sequencename> would remove a sequence from the database.
• E. CURRVAL is used to refer to the most recent sequence number that has been generated for a particular sequence.

Answer: C,E

Explanation:
Explanation
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 129
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 IN ('MO', 'MI');
• B. SELECT DISTINCT last_name, city FROM members WHERE state ='MO' OR state ='MI';
• C. SELECT last_name, city FROM members WHERE state ='MO' AND state ='MI';
• D. SELECT last_name, city FROM members WHERE state LIKE 'M%';

Answer: A

 

NEW QUESTION 130
Examine the description of the SALES1 table:

SALES2 is a table with the same description as SALES1.
Some sales data is duplicated in both tables.
You want to display the rows from the SALES1 table which are not present in the SALES2 table.
Which set operator generates the required output?

• A. UNION
• B. SUBTRACT
• C. UNION ALL
• D. MINUS
• E. INTERSECT

Answer: D

 

NEW QUESTION 131
Examine the structure of the EMPLOYEEStable.
Name Null? Type
- ---------------- ----- ------ ------
EMPLOYEE_ID NOT NULL NUMBER(6)
FIRST_NAME VARCHAR2(20)
LAST_NAME NOT NULL VARCHAR2(25)
EMAIL NOT NULL VARCHAR2(25)
PHONE NUMBER VARCHAR2(20)
HIRE_DATE NOT NULL DATE
JOB_ID NOT NULL VARCHAR2(10)
SALARY NUMBER(8,2)
COMMISSION_PCT NUMBER(2,2)
MANAGER_ID NUMBER(6)
DEPARTMENT_ID NUMBER(4)
There is a parent/child relationship between EMPLOYEE_IDand MANAGER_ID.
You want to display the last names and manager IDs of employees who work for the same manager as the employee whose EMPLOYEE_IDis 123.
Which query provides the correct output?

• A. SELECT e.last_name, m.manager_id
  FROM employees e RIGHT OUTER JOIN employees m
  on (e.manager_id = m.employee_id)
  AND e.employee_id = 123;
• B. SELECT m.last_name, e.manager_id
  FROM employees e LEFT OUTER JOIN employees m
  on (e.manager_id = m.manager_id)
  WHERE e.employee_id = 123;
• C. SELECT e.last_name, m.manager_id
  FROM employees e RIGHT OUTER JOIN employees m
  on (e.employee_id = m.manager_id)
  WHERE e.employee_id = 123;
• D. SELECT e.last_name, e.manager_id
  FROM employees e RIGHT OUTER JOIN employees m
  on (e.employee_id = m.employee_id)
  WHERE e.employee_id = 123;

Answer: C

 

NEW QUESTION 132
View the Exhibit and examine the structure of the PRODUCTS table. (Choose the best answer.) You must display the category with the maximum number of items.
You issue this query:
SQL > SELECT COUNT(*), prod_category_id
FROM products
GROUP BY prod_category_id
HAVING COUNT(*) = (SELECT MAX(COUNT(*)) FROM porducts);
What is the result?

• A. It executes successfully but does not give the correct output.
• B. It generates an error because = is not valid and should be replaced by the IN operator.
• C. It executes successfully and gives the correct output.
• D. It generate an error because the subquery does not have a GROUP BY clause.

Answer: D

 

NEW QUESTION 133
View the exhibits and examine the structures of the COSTSand PROMOTIONStables.


Evaluate the following SQL statement:
SQL> SELECT prod_id FROM costs
WHERE promo_id IN (SELECT promo_id FROM promotions
WHERE promo_cost < ALL
( SELECT MAX(promo_cost) FROM promotions
GROUP BY (promo_end_date-
promo_begin_date)));
What would be the outcome of the above SQL statement?

• A. It displays prod IDs in the promos with the lowest cost in the same time interval.
• B. It displays prod IDs in the promos which cost less than the highest cost in the same time interval.
• C. It displays prod IDs in the promos with the highest cost in the same time interval.
• D. It displays prod IDs in the promo with the lowest cost.

Answer: B

 

NEW QUESTION 134
The user SCOTT who is the owner of ORDERS and ORDER_ITEMS tables issues this GRANT command:
GRANT ALL
ON orders, order_items
TO PUBLIC;
What must be done to fix the statement?

• A. ALL should be replaced with a list of specific privileges.
• B. WITH GRANT OPTION should be added to the statement.
• C. PUBLIC should be replaced with specific usernames.
• D. Separate GRANT statements are required for the ORDERS and ORDER_ITEMS tables.

Answer: D

Explanation:
References:
http://docs.oracle.com/javadb/10.8.3.0/ref/rrefsqljgrant.html

 

NEW QUESTION 135
View the Exhibit and examine the structure of the ORDERS table.

Which UPDATE statement is valid?

• A. UPDATE ordersSET order_date = '12-mar-2007',AND order_total = TO_NUMBER(NULL)WHERE order_id = 2455;
• B. UPDATE ordersSET order_date = TO_DATE('12-mar-2007','dd-mon-yyyy'),SET order_total = TO_NUMBER (NULL)WHERE order_id = 2455;
• C. UPDATE ordersSET order_date = '12-mar-2007',order_total IS NULLWHERE order_id = 2455;
• D. UPDATE ordersSET order_date = '12-mar-2007',order_total = NULLWHERE order_id = 2455;

Answer: D

 

NEW QUESTION 136
View the exhibit and examine the ORDERStable.

The ORDERStable contains data and all orders have been assigned a customer ID. Which statement would add a NOTNULLconstraint to the CUSTOMER_IDcolumn?

• A. ALTER TABLE orders
  ADD customer_id NUMBER(6)CONSTRAINT orders_cust_id_nn NOT NULL;
• B. ALTER TABLE orders
  MODIFY CONSTRAINT orders_cust_id_nn NOT NULL (customer_id);
• C. ALTER TABLE orders
  MODIFY customer_id CONSTRAINT orders_cust_nn NOT NULL (customer_id);
• D. ALTER TABLE orders
  ADD CONSTRAINT orders_cust_id_nn NOT NULL (customer_id);

Answer: C

 

NEW QUESTION 137
Evaluate the following statement.

Which statement is true regarding the evaluation of rows returned by the subquery in the INSERTstatement?

• A. Each row is evaluated by the first WHEN clause and if the condition is true, then the row would be evaluated by the subsequent when clauses.
• B. Each row is evaluated by the first WHEN clause and if the condition is false then the row would be evaluated by the subsequent when clauses.
• C. The INSERT statement will return an error because the ELSE clause is missing.
• D. All rows are evaluated by all the three WHEN clauses.

Answer: D

 

NEW QUESTION 138
View the Exhibit and examine the data in the PRODUCT_INFORMATION table.

Which two tasks would require subqueries? (Choose two.)

• A. displaying the minimum list price for each product status
• B. displaying the total number of products supplied by supplier 102071 and having product status OBSOLETE
• C. displaying the number of products whose list prices are more than the average list price
• D. displaying all the products whose minimum list prices are more than average list price of products having the status orderable
• E. displaying all supplier IDs whose average list price is more than 500

Answer: C,D

 

NEW QUESTION 139
View the Exhibit and examine the structure of the CUSTOMERStable.

You want to generate a report showing the last names and credit limits of all customers whose last names start with A, B, or C, and credit limit is below 10,000.
Evaluate the following two queries:
SQL> SELECT cust_last_name, cust_credit_limit FROM customers
WHERE (UPPER(cust_last_name) LIKE 'A%' OR
UPPER (cust_last_name) LIKE 'B%' OR UPPER (cust_last_name) LIKE 'C%')
AND cust_credit_limit < 10000;
SQL>SELECT cust_last_name, cust_credit_limit FROM customers
WHERE UPPER (cust_last_name) BETWEEN 'A' AND 'C'
AND cust_credit_limit < 10000;
Which statement is true regarding the execution of the above queries?

• A. Both execute successfully but do not give the required result
• B. Only the first query gives the correct result
• C. Both execute successfully and give the same result
• D. Only the second query gives the correct result

Answer: B

 

NEW QUESTION 140
......

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