1Z0-047_2.pdf - Part II

Pregunta 1 de 56

1

View the Exhibit and examine the description of the ORDER_ITEMS and

PRODUCT_INFORMATION tables.
The ORDER_ITEM table has records pertaining to details for each product in an order. The

PRODUCT_INFORMATION table has records for all the products available for ordering.

Evaluate the following SQL statement:

SELECT oi.order_id, pi.product_id

FROM order_items oi RIGHT OUTER JOIN product_information pi

ON (oi.product_id=pi.product_id);

Which statement is true regarding the output of this SQL statement?

Selecciona una o más de las siguientes respuestas posibles:

A. The query would return the ORDER_ID and PRODUCT_ID for only those products that are

ordered.
B. The query would return the ORDER_ID and PRODUCT_ID for the products that are ordered

as well as for the products that have never been ordered.
C. The query would return the ORDER_ID and PRODUCT_ID for the products that are ordered

but not listed in the PRODUCT_INFORMATION table.
D. The query would return the ORDER_ID and PRODUCT_ID for those products that are ordered

as well as for the products that have never been ordered, and for the products that are not

listed in the PRODUCT_INFORMATION table.

Explicación

Pregunta 2 de 56

1

Evaluate the following statement:

CREATE TABLE bonuses(employee_id NUMBER, bonus NUMBER DEFAULT 100);

The details of all employees who have made sales need to be inserted into the BONUSES table.

You can obtain the list of employees who have made sales based on the SALES_REP_ID

column of the ORDERS table.

The human resources manager now decides that employees with a salary of $8,000 or less

should receive a bonus. Those who have not made sales get a bonus of 1% of their salary. Those

who have made sales get a bonus of 1% of their salary and also a salary increase of 1%. The

salary of each employee can be obtained from the EMPLOYEES table.

Which option should be used to perform this task most efficiently?

Selecciona una o más de las siguientes respuestas posibles:

A. MERGE
B. Unconditional INSERT
C. Conditional ALL INSERT
D. Conditional FIRST INSERT

Explicación

Pregunta 3 de 56

1

Which statement is true regarding the ROLLUP operator specified in the GROUP BY clause of a

SQL statement?

Selecciona una o más de las siguientes respuestas posibles:

A. It produces only the subtotals for the groups specified in the GROUP BY clause.
B. It produces only the grand totals for the groups specified in the GROUP BY clause.
C. It produces higher-level subtotals, moving from right to left through the list of grouping columns

specified in the GROUP BY clause.
D. It produces higher-level subtotals, moving in all the directions through the list of grouping

columns specified in the GROUP BY clause.

Explicación

Pregunta 4 de 56

1

View the Exhibit and examine DEPARTMENTS and the LOCATIONS tables.
Evaluate the following SQL statement:

SELECT location_id, city

FROM locations

l WHERE NOT EXISTS (SELECT location_id

FROM departments

WHERE location_id <> l.location_id);

This statement was written to display LOCATION_ID and CITY where there are no departments

located. Which statement is true regarding the execution and output of the command?

Selecciona una o más de las siguientes respuestas posibles:

A. The statement would execute and would return the desired results.
B. The statement would not execute because the = comparison operator is missing in the

WHERE clause of the outer query.
C. The statement would execute but it will return zero rows because the WHERE clause in the

inner query should have the = operator instead of <>.
D. The statement would not execute because the WHERE clause in the outer query is missing

the column name for comparison with the inner query result.

Explicación

Pregunta 5 de 56

1

Evaluate the following SQL statements that are issued in the given order:

CREATE TABLE emp

(emp_no NUMBER(2) CONSTRAINT emp_emp_no_pk PRIMARY KEY,

ename VARCHAR2(15),

salary NUMBER(8,2),

mgr_no NUMBER(2) CONSTRAINT emp_mgr_fk REFERENCES emp);

ALTER TABLE emp

DISABLE CONSTRAINT emp_emp_no_pk CASCADE;

ALTER TABLE emp

ENABLE CONSTRAINT emp_emp_no_pk;

What would be the status of the foreign key EMP_MGR_FK?

Selecciona una o más de las siguientes respuestas posibles:

A. It would be automatically enabled and deferred.
B. It would be automatically enabled and immediate.
C. It would remain disabled and has to be enabled manually using the ALTER TABLE command.
D. It would remain disabled and can be enabled only by dropping the foreign key constraint and

re-creating it.

Explicación

Pregunta 6 de 56

1

View the Exhibit and examine the structure of the LOCATIONS and DEPARTMENTS tables.
Which SET operator should be used in the blank space in the following SQL statement to display

the cities that have departments located in them?

SELECT location_id, city

FROM locations

____

SELECT location_id, city

FROM locations JOIN departments

USING(location_id);

Selecciona una o más de las siguientes respuestas posibles:

A. UNION
B. MINUS
C. INTERSECT
D. UNION ALL

Explicación

Pregunta 7 de 56

1

Which CREATE TABLE statement is valid?

Selecciona una o más de las siguientes respuestas posibles:

A. CREATE TABLE ord_details

(ord_no NUMBER(2) PRIMARY KEY,

item_no NUMBER(3) PRIMARY KEY,

ord_date date NOT NULL);
B. CREATE TABLE ord_details

(ord_no NUMBER(2) UNIQUE, NOT NULL,

item_no NUMBER(3),

ord_date date DEFAULT SYSDATE NOT NULL);
C. CREATE TABLE ord_details

(ord_no NUMBER(2) ,
item_no NUMBER(3),

ord_date date DEFAULT NOT NULL,

CONSTRAINT ord_uq UNIQUE (ord_no),

CONSTRAINT ord_pk PRIMARY KEY (ord_no));
D. CREATE TABLE ord_details

(ord_no NUMBER(2),

item_no NUMBER(3),

ord_date date DEFAULT SYSDATE NOT NULL,

CONSTRAINT ord_pk PRIMARY KEY (ord_no, item_no));

Explicación

Pregunta 8 de 56

1

Evaluate the following SELECT statement and view the Exhibit to examine its output:
SELECT constraint_name, constraint_type, search_condition, r_constraint_name, delete_rule,

status FROM user_constraints

WHERE table_name = ORDERS

Which two statements are true about the output? (Choose two.)

Selecciona una o más de las siguientes respuestas posibles:

A. In the second column, indicates a check constraint.
B. The STATUS column indicates whether the table is currently in use.
C. The R_CONSTRAINT_NAME column gives the alternative name for the constraint.
D. The column DELETE_RULE decides the state of the related rows in the child table when the

corresponding row is deleted from the parent table.

Explicación

Pregunta 9 de 56

1

Which statement is true regarding Flashback Version Query?

Selecciona una o más de las siguientes respuestas posibles:

A. It returns versions of rows only within a transaction.
B. It can be used in subqueries contained only in a SELECT statement.
C. It will return an error if the undo retention time is less than the lower bound time or SCN

specified.
D. It retrieves all versions including the deleted as well as subsequently reinserted versions of the

rows.

Explicación

Pregunta 10 de 56

1

Which two statements are true regarding multiple-row subqueries? (Choose two.)

Selecciona una o más de las siguientes respuestas posibles:

A. They can contain group functions.
B. They always contain a subquery within a subquery.
C. They use the < ALL operator to imply less than the maximum.
D. They can be used to retrieve multiple rows from a single table only.
E. They should not be used with the NOT IN operator in the main query if NULL is likely to be a

part of the result of the subquery.

Explicación

Pregunta 11 de 56

1

View the Exhibit and examine the structure of the ORDERS table.
The columns ORDER_MODE and ORDER_TOTAL have the default values 'direct' and 0

respectively.

Which two INSERT statements are valid? (Choose two.)

Selecciona una o más de las siguientes respuestas posibles:

A. INSERT INTO orders

VALUES (1, '09-mar-2007', 'online','',1000);
B. INSERT INTO orders

(order_id,order_date,order_mode,

customer_id,order_total)

VALUES(1,TO_DATE(NULL), 'online', 101, NULL);
C. INSERT INTO

(SELECT order_id,order_date,customer_id

FROM orders)

VALUES (1,'09-mar-2007', 101);
D. INSERT INTO orders

VALUES (1,'09-mar-2007', DEFAULT, 101, DEFAULT);
E. INSERT INTO orders

(order_id,order_date,order_mode,order_total)

VALUES (1,'10-mar-2007','online',1000);

Explicación

Pregunta 12 de 56

1

The following are the steps for a correlated subquery, listed in random order:

1) The WHERE clause of the outer query is evaluated.

2) The candidate row is fetched from the table specified in the outer query.

3) The procedure is repeated for the subsequent rows of the table, till all the rows are processed.

4) Rows are returned by the inner query, after being evaluated with the value from the candidate

row in the outer query.

Identify the option that contains the steps in the correct sequence in which the Oracle server

evaluates a correlated subquery.

Selecciona una o más de las siguientes respuestas posibles:

A. 4, 2, 1, 3
B. 4, 1, 2, 3
C. 2, 4, 1, 3
D. 2, 1, 4, 3

Explicación

Pregunta 13 de 56

1

View the Exhibit and examine the structure of the EMPLOYEES table.
Evaluate the following SQL statement:

SELECT employee_id, last_name, job_id, manager_id

FROM employees

START WITH employee_id = 101

CONNECT BY PRIOR employee_id=manager_id;

Which statement is true regarding the output for this command?

Selecciona una o más de las siguientes respuestas posibles:

A. It would return a hierarchical output starting with the employee whose EMPLOYEE_ID is 101,

followed by his or her peers.
B. It would return a hierarchical output starting with the employee whose EMPLOYEE_ID is 101,

followed by the employee to whom he or she reports.
C. It would return a hierarchical output starting with the employee whose EMPLOYEE_ID is 101,

followed by employees below him or her in the hierarchy.
D. It would return a hierarchical output starting with the employee whose EMPLOYEE_ID is101,

followed by employees up to one level below him or her in the hierarchy.

Explicación

Pregunta 14 de 56

1

Which two statements are true about the GROUPING function? (Choose two.)

Selecciona una o más de las siguientes respuestas posibles:

A. It is used to find the groups forming the subtotal in a row.
B. It is used to identify the NULL value in the aggregate functions.
C. It is used to form the group sets involved in generating the totals and subtotals.
D. It can only be used with ROLLUP and CUBE operators specified in the GROUP BY clause.

Explicación

Pregunta 15 de 56

1

Given below is a list of datetime data types and examples of values stored in them in a random

order:

Datatype Example

1)INTERVAL YEAR TO MONTH a) '2003-04-15 8:00:00 -8:00'

2)TIMESTAMP WITH LOCAL TIME ZONE b) '+06 03:30:16.000000'

3)TIMESTAMP WITH TIME ZONE c) '17-JUN-03 12.00.00.000000 AM'

4)INTERVAL DAY TO SECOND d) '+02-00'

Identify the option that correctly matches the data types with the values.

Selecciona una o más de las siguientes respuestas posibles:

A. 1-d, 2-c, 3-a, 4-b
B. 1-b, 2-a, 3-c, 4-d
C. 1-b, 2-a, 3-d, 4-c
D. 1-d, 2-c, 3-b, 4-a

Explicación

Pregunta 16 de 56

1

View the Exhibit and examine the description of the PRODUCT_INFORMATION table.
You want to display the expiration date of the warranty for a product. Which SQL statement would

you execute?

Selecciona una o más de las siguientes respuestas posibles:

A. SELECT product_id, SYSDATE + warranty_period

FROM product_information;
B. SELECT product_id, TO_YMINTERVAL(warranty_period)

FROM product_information;
C. SELECT product_id, TO_YMINTERVAL(SYSDATE) + warranty_period

FROM product_information;
D. SELECT product_id, TO_YMINTERVAL(SYSDATE + warranty_period)

FROM product_information;

Explicación

Pregunta 17 de 56

1

View the Exhibit and examine the structure of the ORDERS table.
NEW_ORDERS is a new table with the columns ORD_ID, ORD_DATE, CUST_ID, and

ORD_TOTAL that have the same data types and size as the corresponding columns in the

ORDERS table.

Evaluate the following INSERT statement:

INSERT INTO new_orders (ord_id, ord_date, cust_id, ord_total)

VALUES(SELECT order_id,order_date,customer_id,order_total

FROM orders

WHERE order_date > '31-dec-1999');

Why would the INSERT statement fail?

Selecciona una o más de las siguientes respuestas posibles:

A. because column names in NEW_ORDERS and ORDERS tables do not match
B. because the VALUES clause cannot be used in an INSERT with a subquery
C. because the WHERE clause cannot be used in a subquery embedded in an INSERT

statement
D. because the total number of columns in the NEW_ORDERS table does not match the total

number of columns in the ORDERS table

Explicación

Pregunta 18 de 56

1

View the Exhibit and examine the structure of the ORDER_ITEMS and ORDERS tables.
You are asked to retrieve the ORDER_ID, PRODUCT_ID, and total price (UNIT_PRICE

multiplied by QUANTITY), where the total price is greater than 50,000.

You executed the following SQL statement:

SELECT order_id, product_id, unit_pricequantity "Total Price"

FROM order_items

WHERE unit_pricequantity > 50000

NATURAL JOIN orders;

Which statement is true regarding the execution of the statement?

Selecciona una o más de las siguientes respuestas posibles:

A. The statement would execute and provide the desired result.
B. The statement would not execute because the ON keyword is missing in the NATURAL JOIN

clause.
C. The statement would not execute because the WHERE clause is before the NATURAL JOIN

clause.
D. The statement would not execute because the USING keyword is missing in the NATURAL

JOIN clause.

Explicación

Pregunta 19 de 56

1

View the Exhibit and examine the structure of the EMPLOYEES table.
You want to know the FIRST_NAME and SALARY for all employees who have the same

manager as that of the employee with the first name 'Neena' and have salary equal to or greater

than that of 'Neena'.

Which SQL statement would give you the desired result?

Selecciona una o más de las siguientes respuestas posibles:

A. SELECT first_name, salary

FROM employees

WHERE (manager_id, salary) >= ALL (SELECT manager_id, salary

FROM employees

WHERE first_name = 'Neena' )

AND first_name <> 'Neena';
B. SELECT first_name, salary

FROM employees

WHERE (manager_id, salary) >= (SELECT manager_id, salary

FROM employees

WHERE first_name = 'Neena' )

AND first_name <> 'Neena';
C. SELECT first_name, salary

FROM employees

WHERE (manager_id, salary) >= ANY (SELECT manager_id, salary

FROM employees

WHERE first_name = 'Neena' )

AND first_name <> 'Neena';
D. SELECT first_name, salary

FROM employees

WHERE ( manager_id = (SELECT manager_id

FROM employees

WHERE first_name = 'Neena' )

AND salary >= ( SELECT salary

FROM employees

WHERE first_name = 'Neena' ) )

AND first_name <> 'Neena';

Explicación

Pregunta 20 de 56

1

View the Exhibit and examine the structure of the ORDERS table.
Which UPDATE statement is valid?

Selecciona una o más de las siguientes respuestas posibles:

A. UPDATE orders

SET order_date = '12-mar-2007',

order_total IS NULL

WHERE order_id = 2455;
B. UPDATE orders

SET order_date = '12-mar-2007',

order_total = NULL

WHERE order_id = 2455;
C. UPDATE orders

SET order_date = '12-mar-2007'

AND order_total = TO_NUMBER(NULL)

WHERE order_id = 2455;
D. UPDATE orders

SET order_date = TO_DATE('12-mar-2007','dd-mon-yyyy'),

SET order_total = TO_NUMBER(NULL)

WHERE order_id = 2455;

Explicación

Pregunta 21 de 56

1

View the Exhibit and examine the descriptions for ORDERS and ORDER_ITEMS tables.
Evaluate the following SQL statement:

SELECT o.customer_id, oi.product_id, SUM(oi.unit_price*oi.quantity) "Order Amount"

FROM order_items oi JOIN orders o

ON oi.order_id = o.order_id

GROUP BY CUBE (o.customer_id, oi.product_id);

Which three statements are true regarding the output of this SQL statement? (Choose three.)

Selecciona una o más de las siguientes respuestas posibles:

A. It would return the subtotals for the Order Amount of every CUSTOMER_ID.
B. It would return the subtotals for the Order Amount for every PRODUCT_ID.
C. It would return the subtotals for the Order Amount of every PRODUCT_ID and

CUSTOMER_ID as one group.
D. It would return the subtotals for the Order Amount of every CUSTOMER_ID and

PRODUCT_ID as one group.
E. It would return only the grand total for the Order Amount of every CUSTOMER_ID and

PRODUCT_ID as one group.

Explicación

Pregunta 22 de 56

1

View the Exhibit and examine the details of the EMPLOYEES table.
You want to generate a hierarchical report for all the employees who report to the employee

whose EMPLOYEE_ID is 100.

Which SQL clauses would you require to accomplish the task? (Choose all that apply.)

Selecciona una o más de las siguientes respuestas posibles:

A. WHERE
B. HAVING
C. GROUP BY
D. START WITH
E. CONNECT BY

Explicación

Pregunta 23 de 56

1

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?

Selecciona una o más de las siguientes respuestas posibles:

A. The ORDERS_MASTER table would contain the ORDER_IDs 1 and 2.
B. The ORDERS_MASTER table would contain the ORDER_IDs 1, 2 and 3.
C. The ORDERS_MASTER table would contain the ORDER_IDs 1, 2 and 4.
D. The ORDERS_MASTER table would contain the ORDER_IDs 1, 2, 3 and 4.

Explicación

Pregunta 24 de 56

1

Evaluate the following ALTER TABLE statement:

ALTER TABLE orders

SET UNUSED order_date;

Which statement is true?

Selecciona una o más de las siguientes respuestas posibles:

A. The DESCRIBE command would still display the ORDER_DATE column.
B. ROLLBACK can be used to get back the ORDER_DATE column in the ORDERS table.
C. The ORDER_DATE column should be empty for the ALTER TABLE command to execute

successfully.
D. After executing the ALTER TABLE command, you can add a new column called

ORDER_DATE to the ORDERS table.

Explicación

Pregunta 25 de 56

1

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?

Selecciona una o más de las siguientes respuestas posibles:

A. ALTER TABLE orders

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

MODIFY customer_id CONSTRAINT orders_cust_id_nn NOT NULL;
C. ALTER TABLE orders

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

ADD customer_id NUMBER(6)CONSTRAINT orders_cust_id_nn NOT NULL;

Explicación

Pregunta 26 de 56

1

Which three statements indicate the end of a transaction? (Choose three.)

Selecciona una o más de las siguientes respuestas posibles:

A. after a COMMIT is issued
B. after a ROLLBACK is issued
C. after a SAVEPOINT is issued
D. after a SELECT statement is issued
E. after a CREATE statement is issued

Explicación

Pregunta 27 de 56

1

View the Exhibit and examine the structure of the ORDERS table.
You have to display ORDER_ID, ORDER_DATE, and CUSTOMER_ID for all those orders that

were placed after the last order placed by the customer whose CUSTOMER_ID is 101.

Which query would give you the desired output?

Selecciona una o más de las siguientes respuestas posibles:

A. SELECT order_id, order_date FROM orders

WHERE order_date > ALL (SELECT MAX(order_date)

FROM orders ) AND

customer_id = 101;
B. SELECT order_id, order_date FROM orders

WHERE order_date > ANY (SELECT order_date

FROM orders

WHERE customer_id = 101);
C. SELECT order_id, order_date FROM orders

WHERE order_date > ALL (SELECT order_date

FROM orders

WHERE customer_id = 101);
D. SELECT order_id, order_date FROM orders
WHERE order_date IN (SELECT order_date

FROM orders

WHERE customer_id = 101);

Explicación

Pregunta 28 de 56

1

You need to create a table with the following column specifications:

1. Employee ID (numeric data type) for each employee

2. Employee Name, (character data type) which stores the employee name

3. Hire date, to store the date when the employee joined the organization

4. Status (character data type). It should contain the value if no data is entered.

5. Resume (character large object [CLOB] data type), which would contain the resume submitted

by the employee

Which is the correct syntax to create this table?

Selecciona una o más de las siguientes respuestas posibles:

A. CREATE TABLE EMP_1

(emp_id NUMBER(4),

emp_name VARCHAR2(25),

start_date DATE,

e_status VARCHAR2(10) DEFAULT 'ACTIVE',

resume CLOB(200));
B. CREATE TABLE 1_EMP

(emp_id NUMBER(4),

emp_name VARCHAR2(25),

start_date DATE,

emp_status VARCHAR2(10) DEFAULT 'ACTIVE',

resume CLOB);
C. CREATE TABLE 1_EMP

(emp_id NUMBER(4),

emp_name VARCHAR2(25),

start_date DATE,

emp_status VARCHAR2(10) DEFAULT "ACTIVE",

resume CLOB);
D. CREATE TABLE EMP_1

(emp_id NUMBER,

emp_name VARCHAR2(25),

start_date DATE,

emp_status VARCHAR2(10) DEFAULT 'ACTIVE',

resume CLOB);

Explicación

Pregunta 29 de 56

1

The details of the order ID, order date, order total, and customer ID are obtained from the

ORDERS table. If the order value is more than 30000, the details have to be added to the

LARGE_ORDERS table. The order ID, order date, and order total should be added to the

ORDER_HISTORY table, and order ID and customer ID should be added to the

CUST_HISTORY table. Which multitable INSERT statement would you use?

Selecciona una o más de las siguientes respuestas posibles:

A. Pivoting INSERT
B. Unconditional INSERT
C. Conditional ALL INSERT
D. Conditional FIRST INSERT

Explicación

Pregunta 30 de 56

1

View the Exhibit and examine the description of the EMPLOYEES table.
Evaluate the following SQL statement:

SELECT first_name, employee_id, NEXT_DAY(ADD_MONTHS(hire_date, 6), 1) "Review" FROM

employees; The query was written to retrieve the FIRST_NAME, EMPLOYEE_ID, and review

date for employees.

The review date is the first Monday after the completion of six months of the hiring. The

NLS_TERRITORY parameter is set to AMERICA in the session.

Which statement is true regarding this query?

Selecciona una o más de las siguientes respuestas posibles:

A. The query would execute to give the desired output.
B. The query would not execute because date functions cannot be nested.
C. The query would execute but the output would give review dates that are Sundays.
D. The query would not execute because the NEXT_DAY function accepts a string as argument.

Explicación

Pregunta 31 de 56

1

View the Exhibit and examine the structure of the EMPLOYEES table.
You want to display all employees and their managers having 100 as the MANAGER_ID. You

want the output in two columns: the first column would have the LAST_NAME of the managers

and the second column would have LAST_NAME of the employees.

Which SQL statement would you execute?

Selecciona una o más de las siguientes respuestas posibles:

A. SELECT m.last_name "Manager", e.last_name "Employee"

FROM employees m JOIN employees e

ON m.employee_id = e.manager_id

WHERE m.manager_id=100;
B. SELECT m.last_name "Manager", e.last_name "Employee"

FROM employees m JOIN employees e

ON m.employee_id = e.manager_id

WHERE e.manager_id=100;
C. SELECT m.last_name "Manager", e.last_name "Employee"

FROM employees m JOIN employees e

ON e.employee_id = m.manager_id

WHERE m.manager_id=100;
D. SELECT m.last_name "Manager", e.last_name "Employee"

FROM employees m JOIN employees e

WHERE m.employee_id = e.manager_id AND e.manager_id=100;

Explicación

Pregunta 32 de 56

1

View the Exhibit1 and examine the descriptions of the EMPLOYEES and DEPARTMENTS tables.
The following SQL statement was executed:

SELECT e.department_id, e.job_id, d.location_id, sum(e.salary) total,

GROUPING(e.department_id) GRP_DEPT,

GROUPING(e.job_id) GRP_JOB,

GROUPING(d.location_id) GRP_LOC

FROM employees e JOIN departments d

ON e.department_id = d.department_id

GROUP BY ROLLUP (e.department_id, e.job_id, d.location_id);

View the Exhibit2 and examine the output of the command.
Which two statements are true regarding the output? (Choose two.)

Selecciona una o más de las siguientes respuestas posibles:

A. The value 1 in GRP_LOC means that the LOCATION_ID column is taken into account to

generate the subtotal.
B. The value 1 in GRP_JOB and GRP_LOC means that JOB_ID and LOCATION_ID columns are

not taken into account to generate the subtotal.
C. The value 1 in GRP_JOB and GRP_LOC means that the NULL value in JOB_ID and

LOCATION_ID columns are taken into account to generate the subtotal.
D. The value 0 in GRP_DEPT, GRP_JOB, and GRP_LOC means that DEPARTMENT_ID,

JOB_ID, and LOCATION_ID columns are taken into account to generate the subtotal.

Explicación

Pregunta 33 de 56

1

View the Exhibit and examine the description of the DEPARTMENTS and EMPLOYEES tables.
To retrieve data for all the employees for their EMPLOYEE_ID, FIRST_NAME, and

DEPARTMENT

NAME, the following SQL statement was written:

SELECT employee_id, first_name, department_name

FROM employees

NATURAL JOIN departments;

The desired output is not obtained after executing the above SQL statement. What could be the

reason for this?

Selecciona una o más de las siguientes respuestas posibles:

A. The NATURAL JOIN clause is missing the USING clause.
B. The table prefix is missing for the column names in the SELECT clause.
C. The DEPARTMENTS table is not used before the EMPLOYEES table in the FROM clause.
D. The EMPLOYEES and DEPARTMENTS tables have more than one column with the same

column name and data type.

Explicación

Pregunta 34 de 56

1

View the Exhibit and examine the descriptions of the DEPT and LOCATIONS tables.
You want to update the CITY column of the DEPT table for all the rows with the corresponding

value in the CITY column of the LOCATIONS table for each department.

Which SQL statement would you execute to accomplish the task?

Selecciona una o más de las siguientes respuestas posibles:

A. UPDATE dept d

SET city = ANY (SELECT city

FROM locations l);
B. UPDATE dept d

SET city = (SELECT city

FROM locations l)

WHERE d.location_id = l.location_id;
C. UPDATE dept d

SET city = (SELECT city

FROM locations l

WHERE d.location_id = l.location_id);
D. UPDATE dept d

SET city = ALL (SELECT city

FROM locations l

WHERE d.location_id = l.location_id);

Explicación

Pregunta 35 de 56

1

View the Exhibit and examine the data in the LOCATIONS table.
Evaluate the following SQL statement:

SELECT street_address

FROM locations

WHERE

REGEXP_INSTR(street_address,'[^[:alpha:]]') = 1;

Which statement is true regarding the output of this SQL statement?

Selecciona una o más de las siguientes respuestas posibles:

A. It would display all the street addresses that do not have a substring 'alpha'.
B. It would display all the street addresses where the first character is a special character.
C. It would display all the street addresses where the first character is a letter of the alphabet.
D. It would display all the street addresses where the first character is not a letter of the alphabet.

Explicación

Pregunta 36 de 56

1

Evaluate the following expression using meta character for regular expression:

'[^Ale|ax.r$]'
Which two matches would be returned by this expression? (Choose two.)

Selecciona una o más de las siguientes respuestas posibles:

A. Alex
B. Alax
C. Alxer
D. Alaxendar
E. Alexender

Explicación

Pregunta 37 de 56

1

The ORDERS table belongs to the user OE. OE has granted the SELECT privilege on the

ORDERS table to the user HR.

Which statement would create a synonym ORD so that HR can execute the following query

successfully?

SELECT * FROM ord;

Selecciona una o más de las siguientes respuestas posibles:

A. CREATE SYNONYM ord FOR orders; This command is issued by OE.
B. CREATE PUBLIC SYNONYM ord FOR orders; This command is issued by OE.
C. CREATE SYNONYM ord FOR oe.orders; This command is issued by the database

administrator.
D. CREATE PUBLIC SYNONYM ord FOR oe.orders; This command is issued by the database

administrator.

Explicación

Pregunta 38 de 56

1

View the Exhibit and examine the description of the EMPLOYEES and DEPARTMENTS tables.
You want to display the LAST_NAME for the employees, LAST_NAME for the manager of the

employees, and the DEPARTMENT_NAME for the employees having 100 as MANAGER_ID.

The following SQL statement was written:

SELECT m.last_name "Manager", e.last_name "Employee", department_name "Department"

FROM employees m JOIN employees e

ON (m.employee_id = e.manager_id)

WHERE e.manager_id=100

JOIN departments d

ON (e.department_id = d.department_id);

Which statement is true regarding the output of this SQL statement?

Selecciona una o más de las siguientes respuestas posibles:

A. The statement would provide the desired results.
B. The statement would not execute because the ON clause is written twice.
C. The statement would not execute because the WHERE clause is wrongly placed.
D. The statement would not execute because the self join uses the ON clause instead of the

USING clause.

Explicación

Pregunta 39 de 56

1

Evaluate the following DELETE statement:

DELETE FROM orders;

There are no other uncommitted transactions on the ORDERS table.

Which statement is true about the DELETE statement?

Selecciona una o más de las siguientes respuestas posibles:

A. It removes all the rows in the table and allows ROLLBACK.
B. It would not remove the rows if the table has a primary key.
C. It removes all the rows as well as the structure of the table.
D. It removes all the rows in the table and does not allow ROLLBACK.

Explicación

Pregunta 40 de 56

1

View the Exhibit and examine the structure of ORDERS and ORDER_ITEMS tables.
ORDER_ID is the primary key in the ORDERS table.

It is also the foreign key in the ORDER_ITEMS table wherein it is created with the ON DELETE

CASCADE option.

Which DELETE statement would execute successfully?

Selecciona una o más de las siguientes respuestas posibles:

A. DELETE order_id

FROM orders

WHERE order_total < 1000;
B. DELETE orders

WHERE order_total < 1000;
C. DELETE

FROM orders

WHERE (SELECT order_id

FROM order_items);
D. DELETE orders o, order_items i

WHERE o.order_id = i.order_id;

Explicación

Pregunta 41 de 56

1

View the Exhibit and examine the description for EMPLOYEES and DEPARTMENTS tables.
Evaluate the following SQL statement:

SELECT e.department_id, e.job_id, d.location_id, sum(e.salary) total

FROM employees e JOIN departments d

ON e.department_id = d.department_id

GROUP BY CUBE (e.department_id, e.job_id, d.location_id);

Which two statements are true regarding the output of this command? (Choose two.)

Selecciona una o más de las siguientes respuestas posibles:

A. The output would display the total salary for all the departments.
B. The output would display the total salary for all the JOB_IDs in a department.
C. The output would display only the grand total of the salary for all JOB_IDs in a LOCATION_ID.
D. The output would display the grand total of the salary for only the groups specified in the

GROUP BY clause.

Explicación

Pregunta 42 de 56

1

View the Exhibit and examine the data in EMP and DEPT tables.
In the DEPT table, DEPTNO is the PRIMARY KEY.

In the EMP table, EMPNO is the PRIMARY KEY and DEPTNO is the FOREIGN KEY referencing

the DEPTNO column in the DEPT table.

What would be the outcome of the following statements executed in the given sequence?

DROP TABLE emp;

FLASHBACK TABLE emp TO BEFORE DROP;

INSERT INTO emp VALUES (2,COTT 10);

INSERT INTO emp VALUES (3,ING 55);

Selecciona una o más de las siguientes respuestas posibles:

A. Both the INSERT statements would fail because all constraints are automatically retrieved

when the table is flashed back.
B. Both the INSERT statements would succeed because none of the constraints on the table are

automatically retrieved when the table is flashed back.
C. Only the first INSERT statement would succeed because all the constraints except the primary

key constraint are automatically retrieved after a table is flashed back.
D. Only the second INSERT statement would succeed because all the constraints except

referential integrity constraints that reference other tables are retrieved automatically after the

table is flashed back.

Explicación

Pregunta 43 de 56

1

View the Exhibit and examine the structure of the ORDERS table.
The ORDER_ID column is the PRIMARY KEY in the ORDERS table.

Evaluate the following CREATE TABLE command:

CREATE TABLE new_orders(ord_id, ord_date DEFAULT SYSDATE, cust_id) AS

SELECT order_id,order_date,customer_id

FROM orders;

Which statement is true regarding the above command?

Selecciona una o más de las siguientes respuestas posibles:

A. The NEW_ORDERS table would not get created because the DEFAULT value cannot be

specified in the column definition.
B. The NEW_ORDERS table would get created and only the NOT NULL constraint defined on the

specified columns would be passed to the new table.
C. The NEW_ORDERS table would not get created because the column names in the CREATE

TABLE command and the SELECT clause do not match.
D. The NEW_ORDERS table would get created and all the constraints defined on the specified

columns in the ORDERS table would be passed to the new table.

Explicación

Pregunta 44 de 56

1

Which two statements are true regarding the GROUP BY clause in a SQL statement? (Choose

two.)

Selecciona una o más de las siguientes respuestas posibles:

A. You can use column alias in the GROUP BY clause.
B. Using the WHERE clause after the GROUP BY clause excludes the rows after creating

groups.
C. The GROUP BY clause is mandatory if you are using an aggregate function in the SELECT

clause.
D. Using the WHERE clause before the GROUP BY clause excludes the rows before creating

groups.
E. If the SELECT clause has an aggregate function, then those individual columns without an

aggregate function in the SELECT clause should be included in the GROUP BY clause.

Explicación

Pregunta 45 de 56

1

Which statement is true regarding synonyms?

Selecciona una o más de las siguientes respuestas posibles:

A. Synonyms can be created for tables but not views.
B. Synonyms are used to reference only those tables that are owned by another user.
C. A public synonym and a private synonym can exist with the same name for the same table.
D. The DROP SYNONYM statement removes the synonym, and the status of the table on which

the synonym has been created becomes invalid.

Explicación

Pregunta 46 de 56

1

Evaluate the following command:

CREATE TABLE employees

(employee_id NUMBER(2) PRIMARY KEY,

last_name VARCHAR2(25) NOT NULL,

department_id NUMBER(2),

job_id VARCHAR2(8),

salary NUMBER(10,2));
You issue the following command to create a view that displays the IDs and last names of the

sales staff in the organization:

CREATE OR REPLACE VIEW sales_staff_vu AS

SELECT employee_id, last_name,job_id

FROM employees

WHERE job_id LIKE 'SA_%' WITH CHECK OPTION;

Which statements are true regarding the above view? (Choose all that apply.)

Selecciona una o más de las siguientes respuestas posibles:

A. It allows you to insert details of all new staff into the EMPLOYEES table.
B. It allows you to delete the details of the existing sales staff from the EMPLOYEES table.
C. It allows you to update the job ids of the existing sales staff to any other job id in the

EMPLOYEES table.
D. It allows you to insert the IDs, last names and job ids of the sales staff from the view if it is

used in multitable INSERT statements.

Explicación

Pregunta 47 de 56

1

View the Exhibit and examine the structure of EMPLOYEES and JOB_HISTORY tables.
The EMPLOYEES table maintains the most recent information regarding salary, department, and

job for all the employees. The JOB_HISTORY table maintains the record for all the job changes

for the employees. You want to delete all the records from the JOB_HISTORY table that are

repeated in the EMPLOYEES table.

Which two SQL statements can you execute to accomplish the task? (Choose two.)

Selecciona una o más de las siguientes respuestas posibles:

A. DELETE

FROM job_history j

WHERE employee_id =

(SELECT employee_id

FROM employees e

WHERE j.employee_id = e.employee_id)

AND job_id = (SELECT job_id

FROM employees e

WHERE j.job_id = e.job_id);
B. DELETE

FROM job_history j

WHERE (employee_id, job_id) = ALL

(SELECT employee_id, job_id
FROM employees e

WHERE j.employee_id = e.employee_id and j.job_id = e.job_id )
C. DELETE

FROM job_history j

WHERE employee_id =

(SELECT employee_id

FROM employees e

WHERE j.employee_id = e.employee_id and j.job_id = e.job_id )
D. DELETE

FROM job_history j

WHERE (employee_id, job_id) =

(SELECT employee_id, job_id

FROM employees e

WHERE j.employee_id = e.employee_id and j.job_id = e.job_id )

Explicación

Pregunta 48 de 56

1

The user SCOTT who is the owner of ORDERS and ORDER_ITEMS tables issues the following

GRANT command:

GRANT ALL

ON orders, order_items

TO PUBLIC;

What correction needs to be done to the above statement?

Selecciona una o más de las siguientes respuestas posibles:

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

Explicación

Pregunta 49 de 56

1

Given below is a list of functions and the tasks performed by using these functions, in random

order.

Function Usage

1) LPAD a) Used to truncate a column, expression, or value to n decimal places

2) TRUNC b) Used to remove heading or trailing or both characters from the character string

3) DECODE c) Pads the character value right-justified to a total width of n character positions

4) TRIM d) Used to return the numeric value for position of a named character from the

character string

5) INSTR e) Used to translate an expression after comparing it with each search value

Which option correctly matches the function names with their usage?

Selecciona una o más de las siguientes respuestas posibles:

A. 1-c, 2-b, 3-e, 4-a, 5-d
B. 1-e, 2-b, 3-c, 4-a, 5-d
C. 1-e, 2-a, 3-c, 4-d, 5-b
D. 1-c, 2-a, 3-e, 4-b, 5-d

Explicación

Pregunta 50 de 56

1

Which statement is true regarding the CUBE operator in the GROUP BY clause of a SQL

statement?

Selecciona una o más de las siguientes respuestas posibles:

A. It produces only aggregates for the groups specified in the GROUP BY clause.
B. It finds all the NULL values in the superaggregates for the groups specified in the GROUP BY

clause.
C. It produces 2 n possible superaggregate combinations, if the n columns and expressions are

specified in the GROUP BY clause.
D. It produces n+1 possible superaggregate combinations, if the n columns and expressions are

specified in the GROUP BY clause.

Explicación

Pregunta 51 de 56

1

Which statement is true regarding the SESSION_PRIVS dictionary view?

Selecciona una o más de las siguientes respuestas posibles:

A. It contains the current object privileges available in the user session.
B. It contains the current system privileges available in the user session.
C. It contains the object privileges granted to other users by the current user session.
D. It contains the system privileges granted to other users by the current user session.

Explicación

Pregunta 52 de 56

1

View the Exhibit and examine the details for the CATEGORIES_TAB table.
Evaluate the following incomplete SQL statement:

SELECT category_name,category_description
FROM categories_tab

You want to display only the rows that have 'harddisks' as part of the string in the

CATEGORY_DESCRIPTION column.

Which two WHERE clause options can give you the desired result? (Choose two.)

Selecciona una o más de las siguientes respuestas posibles:

A. WHERE REGEXP_LIKE (category_description, 'hard+.s');
B. WHERE REGEXP_LIKE (category_description, '^H|hard+.s');
C. WHERE REGEXP_LIKE (category_description, '^H|hard+.s$');
D. WHERE REGEXP_LIKE (category_description, '[^H|hard+.s]');

Explicación

Pregunta 53 de 56

1

Which two statements are true regarding roles? (Choose two.)

Selecciona una o más de las siguientes respuestas posibles:

A. A role can be granted to itself.
B. A role can be granted to PUBLIC.
C. A user can be granted only one role at any point of time.
D. The REVOKE command can be used to remove privileges but not roles from other users.
E. Roles are named groups of related privileges that can be granted to users or other roles.

Explicación

Pregunta 54 de 56

1

View the Exhibit and examine the data in the CUST_DET table.
You executed the following multitable INSERT statement:

INSERT FIRST

WHEN credit_limit >= 5000 THEN

INTO cust_1 VALUES(cust_id, credit_limit, grade, gender)

WHEN grade = THEN

INTO cust_2 VALUES(cust_id, credit_limit, grade, gender)

WHEN grade = THEN

INTO cust_3 VALUES(cust_id, credit_limit, grade, gender)

INTO cust_4 VALUES(cust_id, credit_limit, grade, gender)

ELSE

INTO cust_5 VALUES(cust_id, credit_limit, grade, gender)

SELECT * FROM cust_det;

The row will be inserted in _______.

Selecciona una o más de las siguientes respuestas posibles:

A. CUST_1 table only because CREDIT_LIMIT condition is satisfied
B. CUST_1 and CUST_2 tables because CREDIT_LIMIT and GRADE conditions are satisfied
C. CUST_1,CUST_2 and CUST_5 tables because CREDIT_LIMIT and GRADE conditions are

satisfied but GENDER condition is not satisfied
D. CUST_1, CUST_2 and CUST_4 tables because CREDIT_LIMIT and GRADE conditions are

satisfied for CUST_1 and CUST_2, and CUST_4 has no condition on it

Explicación

Pregunta 55 de 56

1

View the Exhibit and examine the data in the EMPLOYEES tables.
Evaluate the following SQL statement:

SELECT employee_id, department_id

FROM employees

WHERE department_id= 50 ORDER BY department_id

UNION

SELECT employee_id, department_id

FROM employees

WHERE department_id= 90

UNION

SELECT employee_id, department_id

FROM employees

WHERE department_id= 10;

What would be the outcome of the above SQL statement?

Selecciona una o más de las siguientes respuestas posibles:

A. The statement would execute successfully and display all the rows in the ascending order of

DEPARTMENT_ID.
B. The statement would execute successfully but it will ignore the ORDER BY clause and display

the rows in random order.
C. The statement would not execute because the positional notation instead of the column name

should be used with the ORDER BY clause.
D. The statement would not execute because the ORDER BY clause should appear only at the

end of the SQL statement, that is, in the last SELECT statement.

Explicación

Pregunta 56 de 56

1

Evaluate the SQL statements:

CREATE TABLE new_order

(orderno NUMBER(4),

booking_date TIMESTAMP WITH LOCAL TIME ZONE);

The database is located in San Francisco where the time zone is -8:00.

The user is located in New York where the time zone is -5:00.

A New York user inserts the following record:

INSERT INTO new_order

VALUES(1, TIMESTAMP ?007-05-10 6:00:00 -5:00?);

Which statement is true?

Selecciona una o más de las siguientes respuestas posibles:

A. When the New York user selects the row, booking_date is displayed as '007-05-10

3.00.00.000000'
B. When the New York user selects the row, booking_date is displayed as '2007-05-10

6.00.00.000000 -5:00'.
C. When the San Francisco user selects the row, booking_date is displayed as '007-05-10

3.00.00.000000'
D. When the San Francisco user selects the row, booking_date is displayed as '007-05-10

3.00.00.000000 -8:00'

	Creado por anillvap hace casi 11 años

Test sobre 1Z0-047_2.pdf - Part II , creado por anillvap el 28/01/2014.

1Z0-047_2.pdf - Part II

1Z0-047_2.pdf - Part II

Pregunta 1 de 56

Selecciona una o más de las siguientes respuestas posibles:

Explicación

Pregunta 2 de 56

Selecciona una o más de las siguientes respuestas posibles:

Explicación

Pregunta 3 de 56

Which statement is true regarding the ROLLUP operator specified in the GROUP BY clause of a SQL statement?

Selecciona una o más de las siguientes respuestas posibles:

Explicación

Pregunta 4 de 56

Selecciona una o más de las siguientes respuestas posibles:

Explicación

Pregunta 5 de 56

Selecciona una o más de las siguientes respuestas posibles:

Explicación

Pregunta 6 de 56

Selecciona una o más de las siguientes respuestas posibles:

Explicación

Pregunta 7 de 56

Which CREATE TABLE statement is valid?

Selecciona una o más de las siguientes respuestas posibles:

Explicación

Pregunta 8 de 56

Evaluate the following SELECT statement and view the Exhibit to examine its output: SELECT constraint_name, constraint_type, search_condition, r_constraint_name, delete_rule, status FROM user_constraints WHERE table_name = ORDERS Which two statements are true about the output? (Choose two.)

Selecciona una o más de las siguientes respuestas posibles:

Explicación

Pregunta 9 de 56

Which statement is true regarding Flashback Version Query?

Selecciona una o más de las siguientes respuestas posibles:

Explicación

Pregunta 10 de 56

Which two statements are true regarding multiple-row subqueries? (Choose two.)

Selecciona una o más de las siguientes respuestas posibles:

Explicación

Pregunta 11 de 56

View the Exhibit and examine the structure of the ORDERS table. The columns ORDER_MODE and ORDER_TOTAL have the default values 'direct' and 0 respectively. Which two INSERT statements are valid? (Choose two.)

Selecciona una o más de las siguientes respuestas posibles:

Explicación

Pregunta 12 de 56

Selecciona una o más de las siguientes respuestas posibles:

Explicación

Pregunta 13 de 56

Selecciona una o más de las siguientes respuestas posibles:

Explicación

Pregunta 14 de 56

Which two statements are true about the GROUPING function? (Choose two.)

Selecciona una o más de las siguientes respuestas posibles:

Explicación

Pregunta 15 de 56

Selecciona una o más de las siguientes respuestas posibles:

Explicación

Pregunta 16 de 56

View the Exhibit and examine the description of the PRODUCT_INFORMATION table. You want to display the expiration date of the warranty for a product. Which SQL statement would you execute?

Selecciona una o más de las siguientes respuestas posibles:

Explicación

Pregunta 17 de 56

Selecciona una o más de las siguientes respuestas posibles:

Explicación

Pregunta 18 de 56

Selecciona una o más de las siguientes respuestas posibles:

Explicación

Pregunta 19 de 56

Selecciona una o más de las siguientes respuestas posibles:

Explicación

Pregunta 20 de 56

View the Exhibit and examine the structure of the ORDERS table. Which UPDATE statement is valid?

Selecciona una o más de las siguientes respuestas posibles:

Explicación

Pregunta 21 de 56

Selecciona una o más de las siguientes respuestas posibles:

Explicación

Pregunta 22 de 56

View the Exhibit and examine the details of the EMPLOYEES table. You want to generate a hierarchical report for all the employees who report to the employee whose EMPLOYEE_ID is 100. Which SQL clauses would you require to accomplish the task? (Choose all that apply.)

Selecciona una o más de las siguientes respuestas posibles:

Explicación

Pregunta 23 de 56

Which statement is true regarding the ROLLUP operator specified in the GROUP BY clause of a

SQL statement?

Evaluate the following SELECT statement and view the Exhibit to examine its output:
SELECT constraint_name, constraint_type, search_condition, r_constraint_name, delete_rule,

status FROM user_constraints

WHERE table_name = ORDERS

Which two statements are true about the output? (Choose two.)

View the Exhibit and examine the structure of the ORDERS table.
The columns ORDER_MODE and ORDER_TOTAL have the default values 'direct' and 0

respectively.

Which two INSERT statements are valid? (Choose two.)

View the Exhibit and examine the description of the PRODUCT_INFORMATION table.
You want to display the expiration date of the warranty for a product. Which SQL statement would

you execute?

View the Exhibit and examine the structure of the ORDERS table.
Which UPDATE statement is valid?

View the Exhibit and examine the details of the EMPLOYEES table.
You want to generate a hierarchical report for all the employees who report to the employee

whose EMPLOYEE_ID is 100.

Which SQL clauses would you require to accomplish the task? (Choose all that apply.)

Evaluate the following ALTER TABLE statement:

ALTER TABLE orders

SET UNUSED order_date;

Which statement is true?

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?

View the Exhibit and examine the structure of the ORDERS table.
You have to display ORDER_ID, ORDER_DATE, and CUSTOMER_ID for all those orders that

were placed after the last order placed by the customer whose CUSTOMER_ID is 101.

Which query would give you the desired output?

View the Exhibit and examine the data in the LOCATIONS table.
Evaluate the following SQL statement:

SELECT street_address

FROM locations

WHERE

REGEXP_INSTR(street_address,'[^[:alpha:]]') = 1;

Which statement is true regarding the output of this SQL statement?

Evaluate the following expression using meta character for regular expression:

'[^Ale|ax.r$]'
Which two matches would be returned by this expression? (Choose two.)

The ORDERS table belongs to the user OE. OE has granted the SELECT privilege on the

ORDERS table to the user HR.

Which statement would create a synonym ORD so that HR can execute the following query

successfully?

SELECT * FROM ord;