FREE DOWNLOAD 1Z1-071 PASS TEST & LEADER IN QUALIFICATION EXAMS & EFFICIENT 1Z1-071: ORACLE DATABASE SQL

Free Download 1z1-071 Pass Test & Leader in Qualification Exams & Efficient 1z1-071: Oracle Database SQL

Free Download 1z1-071 Pass Test & Leader in Qualification Exams & Efficient 1z1-071: Oracle Database SQL

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Quiz 1z1-071 - Oracle Database SQL Authoritative Pass Test

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Oracle Database SQL Sample Questions (Q100-Q105):

NEW QUESTION # 100
View the Exhibit and examine the structure of the CUSTOMERS table.

Which two tasks would require subqueries or joins to be executed in a single statement? (Choose two.)

  • A. finding the number of customers, in each city, whose credit limit is more than the average credit limit of all the customers
  • B. listing of those customers whose credit limit is the same as the credit limit of customers residing in the city 'Tokyo'
  • C. listing of customers who do not have a credit limit and were born before 1980
  • D. finding the average credit limit of male customers residing in 'Tokyo' or 'Sydney'
  • E. finding the number of customers, in each city, whose marital status is 'married'

Answer: A,B

Explanation:
Describe the Types of Problems That the Subqueries Can Solve
There are many situations where you will need the result of one query as the input for
another.
Use of a Subquery Result Set for Comparison Purposes
Which employees have a salary that is less than the average salary? This could be
answered by two statements, or by a single statement with a subquery. The following
example uses two statements:
select avg(salary) from employees;
select last_name from employees where salary < result_of_previous_query ;
Alternatively, this example uses one statement with a subquery:
select last_name from employees where salary < (select avg(salary)from employees);
In this example, the subquery is used to substitute a value into the WHERE clause of the
parent query: it is returning a single value, used for comparison with the rows retrieved by
the parent query.
The subquery could return a set of rows. For example, you could use the following to find
all departments that do actually have one or more employees assigned to them:
select department_name from departments where department_id in
(select distinct(department_id) from employees);


NEW QUESTION # 101
View the Exhibit and examine the structure of the CUSTOMERS table.

CUSTOMER_VU is a view based on CUSTOMERS_BR1 table which has the same structure as CUSTOMERS table.
CUSTOMERS need to be updated to reflect the latest information about the customers.
What is the error in the following MERGE statement?

  • A. The CUSTOMER_ID column cannot be updated.
  • B. CUSTOMER_VU cannot be used as a data source.
  • C. The INTO clause is misplaced in the command.
  • D. The WHERE clause cannot be used with INSERT.

Answer: A


NEW QUESTION # 102
Examine this partial command:

Which two clauses are required for this command to execute successfully?

  • A. the LOCATION clause
  • B. the DEFAULT DIRECTORY clause
  • C. the access driver TYPE clause
  • D. the ACCESS PARAMETERS clause
  • E. the REJECT LIMIT clause

Answer: A,B


NEW QUESTION # 103
Examine these requirements:
1. Display book titles for books purchased before January 17, 2007 costing less than 500 or more than 1000.
2. Sort the titles by date of purchase, starting with the most recently purchased book.
Which two queries can be used?

  • A. SELECT book_title FROM books WHERE (price< 500 OR >1000) AND (purchase date< '17-JAN-2007') ORDER BY purchase date DESC;
  • B. SELECT book_title FROM books WHERE (price IN (500, 1000)) AND (purchase date < '17-JAN-2007') ORDER BY purchase_date ASC;
  • C. SELECT book_title FROM books WHERE (price BETWEEN 500 AND 1000) AND (purchase_date<'17-JAN-2007') ORDER BY purchase_date;
  • D. SELECT book_title FROM books WHERE (price NOT BETWEEN 500 AND 1000) AND (purchase_date< '17-JAN-2007') ORDER BY purchase_date DESC;

Answer: D

Explanation:
The requirements specify that we need to select book titles based on a price condition and a date condition, and then sort the results by the date of purchase.
A . This query will not execute successfully because there is a syntax error in the price condition. It should be price < 500 OR price > 1000.
B . This query is incorrect. The requirement specifies that the price must be less than 500 or more than 1000, not in a list of values.
C . This query is correct. It selects books where the price is not between 500 and 1000 (thus, less than 500 or more than 1000) and the purchase date is before January 17, 2007, ordered by purchase date in descending order.
D . This query is incorrect because it selects books with prices between 500 and 1000, which is not what the requirement specifies.
Reference:
Oracle Documentation on SQL SELECT Statement: https://docs.oracle.com/database/121/SQLRF/statements_10002.htm#SQLRF01702


NEW QUESTION # 104
You must create a SALES table with these column specifications and data types:
SALESID: Number
STOREID: Number
ITEMID: Number
QTY: Number, should be set to 1 when no value is specified
SLSDATE: Date, should be set to current date when no value is specified PAYMENT: Characters up to 30 characters, should be set to CASH when no value is specified Which statement would create the table? (Choose the best answer.)

  • A. CREATE TABLE sales(salesid NUMBER(4),storeid NUMBER(4),itemid NUMBER(4),qty NUMBER DEFAULT 1,slsdate DATE DEFAULT SYSDATE,payment VARCHAR2(30) DEFAULT 'CASH');
  • B. CREATE TABLE sales(salesid NUMBER(4),storeid NUMBER(4),itemid NUMBER(4),qty NUMBER DEFAULT = 1,slsdate DATE DEFAULT SYSDATE,payment VARCHAR2(30) DEFAULT =
    "CASH");
  • C. CREATE TABLE sales(salesid NUMBER(4),storeid NUMBER(4),itemid NUMBER(4),qty NUMBER DEFAULT 1,slsdate DATE DEFAULT 'SYSDATE',payment VARCHAR2(30) DEFAULT CASH);
  • D. CREATE TABLE sales(salesid NUMBER(4),storeid NUMBER(4),itemid NUMBER(4),qty NUMBER DEFAULT = 1,slsdate DATE DEFAULT SYSDATE,payment VARCHAR2(30) DEFAULT =
    "CASH");

Answer: A


NEW QUESTION # 105
......

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