[Jan-2022] 1z0-071 Dumps Full Questions - Oracle PL/SQL Developer Certified Associate Exam Study Guide
Exam Questions and Answers for 1z0-071 Study Guide
Exam Topics
The Oracle 1Z0-071 exam checks the candidates’ expertise in a wide range of technical areas. The description of each topic included in this certification test is outlined below:
- Using Conversion Functions & Conditional Expressions: In the framework of this domain, the learners should prove that they are able to apply the COALESCE, NULLIF, NVL functions to data; understand implicit as well as explicit data type conversion; utilize the TO_NUMBER, TO_DATE, and TO_CHAR conversion functions; nest multiple functions.
- Understanding Relational Database Concepts: Within this objective, the test takers should demonstrate that they are capable of describing both physical and theoretical relation database aspects; associating the clauses within SQL Select Statement with the ERD components; describing the link between SQL and a database.
- Reporting Aggregated Data with the Help of Group Functions: This includes such technical abilities as restricting group results; creating data groups; utilizing group functions.
- Using Subqueries to Solve Queries: The skills covered in this topic include utilizing single row subqueries; upgrading and deleting rows with the help of correlated subqueries; utilizing multiple-row subqueries.
- Managing Views: This area comes with the abilities, such as differentiating object privileges from system privileges; granting privileges on tables; distinguishing between granting roles and privileges.
- Retrieving Data with the Help of the SQL SELECT Statement: This domain includes the following technical skills: utilizing column aliases; utilizing the SQL SELECT statement; utilizing literal character strings, replacement quote operator, the DISTINCT keyword, concatenation operator; utilizing arithmetic expressions as well as NULL values within the SELECT statement.
- Managing Tables with the Help of DML Statements: Here, the individuals should know how to manage database transactions; control transactions; implement update, delete, and insert, operations; execute multi-table inserts; execute merge statements.
- Using Single-Row Functions to Configure Output: The topic encompasses one’s skills in manipulating strings with the character functions within the SQL SELECT as well as WHERE clauses; implementing arithmetic using date data; manipulating numbers with MOD, TRUNC, and ROUND functions; manipulating dates using the date function.
- Managing Data in Different Time Zones: The topic requires that the applicants possess competency in operating with CURRENT_TIMESTAMP, LOCALTIMESTAMP, and CURRENT_DATE, as well as dealing with INTERVAL data types.
- Using SET Operators: To tackle the question from this sector, the students need to have expertise in matching the SELECT statements; utilizing the ORDER BY clause within set operations; utilizing the INTERSECT operator; utilizing the MINUS operator; utilizing the UNION as well as UNION ALL operators.
- Using DDL to Handle Tables and Their Relationships: The subject requires the candidates’ skills in explaining and operating with tables; explaining and operating with data types and columns; creating tables; dropping columns as well as setting column UNUSED; truncating tables; creating and utilizing temporary tables; creating and utilizing external tables; handling constraints.
- Showcasing Data from Multiple Tables: In the framework of this area, the examinees need to prove their proficiency in utilizing self-joins; utilizing different joins types; utilizing non equijoins; utilizing OUTER joins; describing and utilizing Cartesian products.
- Sorting & Restricting Data: Here, the applicants must be conversant with implementing precedence rules for the operators within an expression; restricting Rows Returned within the SQL Statement; utilizing Substitution Variables; utilizing VERIFY as well as DEFINE commands.
- Managing Indexes Synonyms & Sequences: This domain focuses on such technical skills as handling indexes; handling sequences as well as handling synonyms.
The Oracle 1Z0-071 is a certification exam that proves the candidate’s knowledge of SQL technology and SQL concepts required to participate in any database project. The target audience for this exam is the IT professionals with some experience in working with these technologies. The fundamental knowledge of general computing concepts and command line interfaces will be an advantage as well.
NEW QUESTION 127
Which two are true about the data dictionary?
- A. All user actions are recorded in the data dictionary.
- B. Base tables in the data dictionary have the prefix DBA_.
- C. The SYS user owns all base tables and user-accessible views in the data dictionary.
- D. The data dictionary is constantly updated to reflect changes to database objects, permissions, and data.
- E. All users have permissions to access all information in the data dictionary by default.
Answer: B,C
NEW QUESTION 128
Which two are true about transactions in the Oracle Database?
- A. DDL statements automatically commit only data dictionary updates caused by executing the DDL.
- B. DML statements always start new transactions.
- C. An uncommitted transaction is automatically committed when the user exits SQL*PLUS
- D. A session can see uncommitted updates made by the same user in a different session
- E. A DDL statement issued by a session with an uncommitted transation automaticall commits that transaction.
Answer: C,E
NEW QUESTION 129
View the Exhibit and examine the structure of the PRODUCTS table.
You must display the category with the maximum number of items.
You issue this query:
What is the result?
- A. It executes successfully and gives the correct output.
- B. It executes successfully but does not give the correct output.
- C. It generate an error because the subquery does not have a GROUP BY clause.
- D. It generates an error because = is not valid and should be replaced by the IN operator.
Answer: C
NEW QUESTION 130
View the exhibits and examine the structures of the COSTS and PROMOTIONS tables.
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 highest cost in the same time interval.
- B. It displays prod IDs in the promo with the lowest cost.
- C. It displays prod IDs in the promos with the lowest cost in the same time interval.
- D. It displays prod IDs in the promos which cost less than the highest cost in the same time interval.
Answer: D
NEW QUESTION 131
View the exhibit and examine the description of the PRODUCT_INFORMATIONtable.
Which SQL statement would retrieve from the table the number of products having LIST_PRICEas NULL?
- A. SELECT COUNT (NVL(list_price, 0))
FROM product_information
WHERE list_price is NULL - B. SELECT COUNT (list_price)
FROM product_information
WHERE list_price i= NULL - C. SELECT COUNT (DISTINCT list_price)
FROM product_information
WHERE list_price is NULL - D. SELECT COUNT (list_price)
FROM product_information
WHERE list_price is NULL
Answer: A
NEW QUESTION 132
An Oracle database server session has an uncommitted transaction in progress which updated 5000 rows
in a table.
In which three situations does the transact ion complete thereby committing the updates?
- A. When a DBA issues a successful SHUTDOWN IMMEDIATE statement and the user then issues a COMMIT
- B. When a CREATE INDEX statement is executed successfully in same session
- C. When a DBA issues a successful SHUTDOWN TRANSACTIONAL statement and the user, then issues a COMMIT
- D. When the session logs out is successfully
- E. When a CREATE TABLE AS SELECT statement is executed unsuccessfully in the same session
- F. When a COMMIT statement is issued by the same user from another session in the same database instance
Answer: B,C,D
NEW QUESTION 133
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. MINUS
- C. UNION ALL
- D. UNION
Answer: B
NEW QUESTION 134
Which two statements are true about date/time functions in a session where NLS_DATE_FORMATis set to DD- MON-YYYY HH24:MI:SS? (Choose two.)
- A. SYSDATEcan be queried only from the DUALtable.
- B. SYSDATEand CURRENT_DATEreturn the current date and time set for the operating system of the database server.
- C. CURRENT_DATEreturns the current date and time as per the session time zone.
- D. CURRENT_TIMESTAMPreturns the same date and time as SYSDATEwith additional details of fractional seconds.
- E. CURRENT_TIMESTAMPreturns the same date as CURRENT_DATE.
- F. SYSDATEcan be used in expressions only if the default date format is DD-MON-RR.
Answer: A,C
Explanation:
Explanation/Reference:
NEW QUESTION 135
You execute this command:
Which two are true?
- A. It retains the indexes defined on the table.
- B. It drops any triggers defined on the table.
- C. It always retains the space used by the removed rows.
- D. A ROLLBACK statement can be used to retrieve the deleted data.
- E. A FLASHBACK TABLE statement can be used to retrieve the deleted data.
- F. It retains the integrity constraints defined on the table.
Answer: A,F
NEW QUESTION 136
View the Exhibit and examine the structure of the ORDERS table. (Choose the best answer.) You must select ORDER_ID and ORDER_DATE for all orders that were placed after the last order placed by CUSTOMER_ID 101.
Which query would give you the desired result?
- A. SELECT order_id, order_date FROM ordersWHERE order_date > IN(SELECT
order_date FROM orders WHERE customer_id = 101); - B. SELECT order_id, order_date FROM ordersWHERE order_date > ALL(SELECT MAX(order_date) FROM orders ) AND customer_id = 101;
- C. SELECT order_id, order_date FROM ordersWHERE order_date > ANY(SELECT order_date FROM orders WHERE customer_id = 101);
- D. SELECT order_id, order_date FROM ordersWHERE order_date > ALL(SELECT order_date FROM orders WHERE customer_id = 101);
Answer: D
NEW QUESTION 137
View the Exhibit and examine the description of the EMPLOYEES table.
You want to calculate the total renumeration for each employee. Total renumeration is the sum of the annual salary and the percentage commission earned for a year. Only a few employees earn commission.
Which SQL statement would you execute to get the desired output?
- A. SELECT first_name, salary, salary*12+salary*commission_pct "Total"FROM EMPLOYEES;
- B. SELECT first_name, salary, salary*12+(salary*NVL2 (commission_pct,
salary,salary+commission_pct))"Total"FROM EMPLOYEES; - C. SELECT first_name, salary (salary + NVL (commission_pct, 0)*salary)*12 "Total"FROM EMPLOYEES;
- D. SELECT first_name, salary*12 + NVL(salary,0)*commission_pct, "Total"FROM EMPLOYEES;
Answer: B
NEW QUESTION 138
Which three statements execute successfully?
A)
B)
C)
D)
E)
F)
G)
- A. Option A
- B. Option E
- C. Option F
- D. Option B
- E. Option G
- F. Option C
- G. Option D
Answer: A,E,F
NEW QUESTION 139
Which statement is true about the Oracle SQL, DELETE and TRUNCATE statements?
- A. DELETE but not TRUNCATE statement can be used to selectively remove rows from a table.
- B. DELETE but not TRUNCATE statement can be used to remove data from selective columns and rows of a table.
- C. DELTE and TRUNCATE statements can have a rollback done to restore data into a table.
- D. DELETE and TRUNCATE statements remove all indexes for the tables on which they are performed.
Answer: A
NEW QUESTION 140
View the Exhibit and examine the ORDERS table.
The ORDERS table contains data and all orders have been assigned a customer ID. Which statement would add a NOT NULL constraint to the CUSTOMER_ID column?
- A. ALTER TABLE orders
MODIFY customer_id CONSTRAINT orders_cust_id_nn NOT NULL; - B. ALTER TABLE orders
ADD customer_id NUMBER(6)CONSTRAINT orders_cust_id_nn NOT NULL; - C. ALTER TABLE orders
ADD CONSTRAINT orders_cust_id_nn NOT NULL (customer_id); - D. ALTER TABLE orders
MODIFY CONSTRAINT orders_cust_id_nn NOT NULL (customer_id);
Answer: A
NEW QUESTION 141
Examine the structure of the INVOICEtable.
Name Null? Type
- ----------------- ------------------- -------------
INV_NO NOT NULL NUMBER(3)
INV_DATE DATE
INV_AMT NUMBER(10,2)
Which two SQL statements would execute successfully?
- A. SELECT inv_no, NVL2(inv_amt, inv_amt*.25, 'Not Available')
FROM invoice; - B. SELECT inv_no, NVL2(inv_date, 'Pending', 'Incomplete')
FROM invoice; - C. SELECT inv_no, NVL2(inv_amt, inv_date, 'Not Available')
FROM invoice; - D. SELECT inv_no, NVL2(inv_date, sysdate-inv_date, sysdate)
FROM invoice;
Answer: B,D
NEW QUESTION 142
You need to display the first names of all customers from the CUSTOMERStable that contain the character 'e' and have the character 'a' in the second last position.
Which query would give the required output?
SELECT cust_first_name
- A. FROM customers
WHERE INSTR(cust_first_name, 'e')IS NOT NULL AND
SUBSTR(cust_first_name, 1, -2)='a';
SELECT cust_first_name - B. FROM customers
WHERE INSTR(cust_first_name, 'e')<>0 AND
SUBSTR(cust_first_name, LENGTH(cust_first_name), -2)='a'; - C. FROM customers
WHERE INSTR(cust_first_name, 'e')<>0 AND
SUBSTR(cust_first_name, -2, 1)='a';
SELECT cust_first_name - D. FROM customers
WHERE INSTR(cust_first_name, 'e')<>'' AND
SUBSTR(cust_first_name, -2, 1)='a';
SELECT cust_first_name
Answer: C
NEW QUESTION 143
......
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
- Explaining the relationship between a database and SQL
- Explaining the theoretical and physical aspects of a relational database
- Relating clauses in SQL Select Statement to Components of an ERD
Retrieving Data using the SQL SELECT Statement
- Using Column aliases
- Using Arithmetic expressions and NULL values in the SELECT statement
- Using concatenation operator, literal character strings, alternative quote operator, and the DISTINCT keyword
- Using The SQL SELECT statement
Restricting and Sorting Data
- Using Substitution Variables
- Using the DEFINE and VERIFY commands
- Limiting Rows Returned in a SQL Statement
- Sorting Data
- Applying Rules of precedence for operators in an expression
Using Single-Row Functions to Customize Output
- Manipulating dates with the date function
- Manipulating numbers with the ROUND, TRUNC and MOD functions
- Performing arithmetic with date data
- Manipulating strings with character functions in SQL SELECT and WHERE clauses
Using Conversion Functions and Conditional Expressions
- Using the TO_CHAR, TO_NUMBER, and TO_DATE conversion functions
- Applying the NVL, NULLIF, and COALESCE functions to data
- Understanding implicit and explicit data type conversion
- Nesting multiple functions
Reporting Aggregated Data Using Group Functions
- Using Group Functions
- Creating Groups of Data
- Restricting Group Results
Displaying Data from Multiple Tables
- Using Self-joins
- Using Various Types of Joins
- Use of non-equijoins
- Using OUTER joins
- Understanding and Using Cartesian Products
Using Subqueries to Solve Queries
- Using Multiple Row Subqueries
- Using Single Row Subqueries
- Update and delete rows using correlated subqueries
Using SET Operators
- Using The MINUS operator
- Using the ORDER BY clause in set operations
- Using The UNION and UNION ALL operators
- Using The INTERSECT operator
- Matching the SELECT statements
Managing Tables using DML statements
- Performing Merge statements
- Perform Insert, Update and Delete operations
- Performing multi table Inserts
- Managing Database Transactions
- Controlling transactions
Managing Indexes Synonyms and Sequences
- Managing Synonyms
- Managing Sequences
- Managing Indexes
Use DDL to manage tables and their relationships
- Dropping columns and setting columns UNUSED
- Describing and Working with Tables
- Creating and using Temporary Tables
- Managing Constraints
- Creating tables
- Creating and using external tables
- Truncating tables
- Describing and Working with Columns and Data Types
Managing Views
- Distinguishing between granting privileges and roles
- Granting privileges on tables
- Controlling User Access
- Differentiating system privileges from object privileges
- Managing Views
Managing Objects with Data Dictionary Views
- Working with INTERVAL data types
- Managing Data in Different Time Zones
- Using data dictionary views
- Working with CURRENT_DATE, CURRENT_TIMESTAMP,and LOCALTIMESTAMP
Oracle Database SQL Free Update With 100% Exam Passing Guarantee: https://www.preppdf.com/Oracle/1z0-071-prepaway-exam-dumps.html
Real Exam Questions & Answers - Oracle 1z0-071 Dump is Ready: https://drive.google.com/open?id=15iwAlApOLv6MSgwrS4nooBkVOyixS1tw