[Jan 07, 2023] Passing Key To Getting 1z0-071 Certified Exam Engine PDF [Q96-Q118]

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[Jan 07, 2023] Passing Key To Getting 1z0-071 Certified Exam Engine PDF

1z0-071 Exam Dumps Pass with Updated Jan-2023 Tests Dumps

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Q96. Which two are true about the data dictionary?

The SYS user owns all base tables and user-accessible views in the data dictionary.

All users have permissions to access all information in the data dictionary by default.

The data dictionary is constantly updated to reflect changes to database objects, permissions, and data.

All user actions are recorded in the data dictionary.

Base tables in the data dictionary have the prefix DBA_.

Q97. Examine this query:

Which two methods should you use to prevent prompting for a hire date value when this query is executed?

Replace ‘&1’ with ‘&&1’ in the query.

Use the DEFINE command before executing the query.

Use the UNDEFINE command before executing the query.

Execute the SET VERIFY ON command before executing the query.

Store the query in a script and pass the substitution value to the script when executing it.

Execute the SET VERIFY OFF command before executing the query.

Q98. View the Exhibit and examine the structure of the ORDERStable.

Which UPDATEstatement is valid?
UPDATE orders

SET order_date = ’12-mar-2007′,
order_total IS NULL
WHERE order_id = 2455;
UPDATE orders

SET order_date = ’12-mar-2007′,
AND order_total = TO_NUMBER(NULL)
WHERE order_id = 2455;
UPDATE orders

SET order_date = ’12-mar-2007′,
order_total = NULL
WHERE order_id = 2455;
UPDATE orders

SET order_date = TO_DATE(’12-mar-2007′,’dd-mon-yyyy’),
SET order_total = TO_NUMBER (NULL)
WHERE order_id = 2455;

Q99. Examine this statement which executes successfully:
CREATE view emp80 AS
SELECT
FROM employees
WHERE department_ id = 80
WITH CHECK OPTION;
Which statement will violate the CHECK constraint?

DELETE FROM emp80
WHERE department_ id = 90;

SELECT
FROM emp80
WHERE department_ id = 90;

SELECT
FROM emp80
WHERE department. id = 80;

UPDATE emp80
SET department. 1d =80;
WHERE department_ id =90;

Q100. Which two statements are true about the WHERE and HAVING clauses in a SELECT statement?

The WHERE clause can be used to exclude rows after dividing them into groups

WHERE and HAVING clauses can be used in the same statement only if applied to different table columns.

The HAVING clause can be used with aggregating functions in subqueries.

Aggregating functions and columns used in HAVING clauses must be specified in these SELECT list of a query.

The WHERE clause can be used to exclude rows before dividing them into groups.

Q101. View the exhibit and examine the data in ORDERS_MASTER and MONTHLY_ORDERS tables.

Evaluate the following MERGE statement:
MERGE_INTO orders_master o
USING monthly_orders m
ON (o.order_id = m.order_id)
WHEN MATCHED THEN
UPDATE SET o.order_total = m.order_total
DELETE WHERE (m.order_total IS NULL)
WHEN NOT MATCHED THEN
INSERT VALUES (m.order_id, m.order_total);
What would be the outcome of the above statement?

The ORDERS_MASTER table would contain the ORDER_IDs 1, 2, 3 and 4.

The ORDERS_MASTER table would contain the ORDER_IDs 1, 2 and 4.

The ORDERS_MASTER table would contain the ORDER_IDs 1, 2 and 3.

The ORDERS_MASTER table would contain the ORDER_IDs 1 and 2.

Q102. On your Oracle 12c database, you invoked SQL *Loader to load data into the EMPLOYEES table in the HR schema by issuing the following command:
$> sqlldr hr/hr@pdb table=employees
Which two statements are true regarding the command? (Choose two.)

It succeeds with default settings if the EMPLOYEES table belonging to HR is already defined in the database.

It fails because no SQL *Loader data file location is specified.

It fails if the HR user does not have the CREATE ANY DIRECTORY privilege.

It fails because no SQL *Loader control file location is specified.

Q103. Examine the data in the EMPLOYEES table:

Which statement will compute the total annual compensation for each employee?

SELECT last name,
(monthly salary*12) + (monthly_commission_pct * 12) AS
annual comp
FROM employees
;

SELECT last_ name (monthly_ salary+ monthly_ commission _ pct) *12 AS annual_
FROM employees ;

SELECT last name, (monthly_ salary *12) + (monthly_ salary * 12 * NVL
(monthly commission pct,0) ) As annual _ comp
FROM employees;

SELECT last_ name, monthly_ salary*12) + (monthly_ salary * 12 * Monthly commission _Pct) AS
annual_ comp
FROM employees;

Q104. Examine the description of the PRODUCT_INFORMATION table:

SELECT (COUNT(list_price) FROM Product_intormation WHERE list_price=NULL;

SELECT count(nvl( list_price,0)) FROM product_information WHERE list_price is null;

SELECT COUNT(DISTINCT list_price) FROM product_information WHERE list_price is null.

BELECT COUNT(list_price) FROM product_information where list_price is NULL;

Q105. Examine the structure proposed for the TRANSACTIONS table:

Which two statements are true regarding the creation and storage of data in the above table structure? (Choose two.)

The CUST_STATUS column would store exactly one character.

The TRANS_VALIDITY column would have a maximum size of one character.

The CUST_CREDIT_LIMIT column would be able to store decimal values.

The CUST_STATUS column would give an error.

The TRANS_DATE column would be able to store day, month, century, year, hour, minutes, seconds, and fractions of seconds.

The TRANS_VALIDITY column would give an error.

Q106. Examine the structure of the MEMBERS table:

You want to display details of all members who reside in states starting with the letter A followed by exactly one character.
Which SQL statement must you execute?

SELECT * FROM MEMBERS WHERE state LIKE ‘%A_’;

SELECT * FROM MEMBERS WHERE state LIKE ‘A_’;

SELECT * FROM MEMBERS WHERE state LIKE ‘A_%’;

SELECT * FROM MEMBERS WHERE state LIKE ‘A%’;

Q107. Which three statements are true regarding subqueries? (Choose three.)

Multiple columns or expressions can be compared between the main query and subquery.

Subqueries can contain ORDER BY but not the GROUP BY clause.

Main query and subquery can get data from different tables.

Subqueries can contain GROUP BY and ORDER BY clauses.

Main query and subquery must get data from the same tables.

Only one column or expression can be compared between the main query and subquery.

Q108. Examine the structure of the BOOKS_TRANSACTIONS table.

You want to update this table such that BOOK_ID is set to ‘INVALID’ for all rows where no MEMBER_ID has been entered.
Examine this partial SQL statement:

Which condition must be used in the WHERE clause to perform the required update?

MEMBER_ID = ”;

MEMBER_ID = NULL;

MEMBER_ID IS NULL;

MEMBER_ID = “”;

Q109. Which two statements are true about * _ TABLES views?

You must have SELECT privileges on a table to view it in ALL _TABLES.

You must have SELECT privileges on a table to view it in DBA TABLES.

USER_ TABLES displays all tables owned by the current user.

ALL TABLES displays all tables owned by the current user.

You must have SELECT privileges on a table to view it in USER TABLES.

All users can query DBA TABLES successfully.

Q110. What is true about non-equijoin statement performance?

The BETWEEN condition always performs less well than using the >= and <= conditions.

The join syntax used makes no difference to performance.

Table aliases can improve performance.

The BETWEEN condition always performs better than using the >= and <= conditions.

The Oracle join syntax performs better than the SQL:1999 compliant ANSI join syntax.

Q111. Examine the business rule:
Each student can work on multiple projects and each project can have multiple students.
You need to design an Entity Relationship Model (ERD) for optimal data storage and allow for generating reports in this format:
STUDENT_ID FIRST_NAME LAST_NAME PROJECT_ID PROJECT_NAME PROJECT_TASK
Which two statements are true in this scenario?

The ERD must have a 1:M relationship between the STUDENTSand PROJECTSentities.

The ERD must have a M:M relationship between the STUDENTSand PROJECTSentities that must be resolved into 1:M relationships.

STUDENT_IDmust be the primary key in the STUDENTSentity and foreign key in the PROJECTSentity.

PROJECT_IDmust be the primary key in the PROJECTSentity and foreign key in the STUDENTSentity.

An associative table must be created with a composite key of STUDENT_ID and PROJECT_ID, which is the foreign key linked to the STUDENTS and PROJECTS entities.

Q112. Which two statements best describe the benefits of using the WITHclause? (Choose two.)

It can improve the performance of a large query by storing the result of a query block having the WITH clause in the session’s temporary tablespace.

It enables sessions to reuse the same query block in a SELECTstatement, if it occurs more than once in a complex query.

It enables sessions to store a query block permanently in memory and use it to create complex queries.

It enables sessions to store the results of a query permanently.

Q113. View the Exhibit and examine the structure of the SALESand PRODUCTStables. (Choose two.)

In the SALEStable, PROD_ID is the foreign key referencing PROD_ID in the PRODUCTS table. You must list each product ID and the number of times it has been sold.
Examine this query which is missing a JOINoperator:

Which two JOINoperations can be used to obtain the required output? (Choose two.)

FULL OUTER JOIN

JOIN

LEFT OUTER JOIN

RIGHT OUTER JOIN

Q114. See the Exhibit and examine the structure of the PROMOTIONS table:

Using the PROMOTIONS table,
you need to find out the average cost for all promos in the range $0-2000 and $2000-5000 in
category A.
You issue the following SQL statements:

What would be the outcome?

It generates an error because multiple conditions cannot be specified for the WHEN clause.

It executes successfully and gives the required result.

It generates an error because CASE cannot be used with group functions.

It generates an error because NULL cannot be specified as a return value.
CASE Expression
Facilitates conditional inquiries by doing the work of an IF-THEN-ELSE statement:
CASE expr WHEN comparison_expr1 THEN return_expr1
[WHEN comparison_expr2 THEN return_expr2
WHEN comparison_exprn THEN return_exprn
ELSE else_expr]
END

Q115. Which two are true about savepoints? (Choose two.)

After issuing a savepoints, you can roll back to the savepoint name within the current transaction.

A ROLLBACK TO SAVEPOINTcommand issued before the start of a transaction results in an error.

They make uncommitted updates visible to other sessions owned by the same user.

After issuing a savepoint, you cannot roll back the complete transaction.

You can commit updates done between two savepoints without committing other updates in the current transaction.

They make uncommitted updates visible to sessions owned by other users.

Q116. Which two are true about granting object privileges on tables, views, and sequences?

DELETE can be granted on tables, views, and sequences.

REFERENCES can be grantrd only on tables.

INSERT can be granted only on tables and sequences.

SELECT can be granted on tables, views, and sequences.

ALTER can be granted only on tables and sequences.

Q117. Which two are true about virtual columns?

They can be referenced In the where clause of an update or debete statement.

They can be referenced in the set clause of an update statement as the name of the column To be updated.

They can be indexed.

They cannot have a data type explicitly specified.

They can be referenced in the column expression of another virtxial column.

Q118. View the exhibit and examine the ORDERStable.
ORDERS
Null? Type
Name
ORDER ID NOT NULL NUMBER(4)
ORDATE DATE DATE
CUSTOMER ID NUMBER(3)
ORDER TOTAL NUMBER(7,2)
The ORDERStable contains data and all orders have been assigned a customer ID. Which statement would add a NOTNULLconstraint to the CUSTOMER_IDcolumn?

ALTER TABLE orders
MODIFY CONSTRAINT orders_cust_id_nn NOT NULL (customer_id);

ALTER TABLE orders
ADD CONSTRAINT orders_cust_id_nn NOT NULL (customer_id);

ALTER TABLE orders
MODIFY customer_id CONSTRAINT orders_cust_nn NOT NULL (customer_id);

ALTER TABLE orders
ADD customer_id NUMBER(6)CONSTRAINT orders_cust_id_nn NOT NULL;