FREE PDF 2025 ORACLE AUTHORITATIVE 1Z0-071 RELIABLE EXAM SIMULATOR

Free PDF 2025 Oracle Authoritative 1z0-071 Reliable Exam Simulator

Free PDF 2025 Oracle Authoritative 1z0-071 Reliable Exam Simulator

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Oracle Database SQL Sample Questions (Q310-Q315):

NEW QUESTION # 310
Examine the description of the PRODUCT_ DETAILS table:

Which two statements are true?

  • A. EXPIRY_ DATE contains the SYSDATE by default if no date is assigned to it.
  • B. PRODUCT_ PRICE contains the value zero by default if no value is assigned to it.
  • C. PRODUCT_ ID can be assigned the PRIMARY KEY constraint.
  • D. EXPIRY_ DATE cannot be used in arithmetic expressions.
  • E. PRODUCT_ NAME cannot contain duplicate values.
  • F. PRODUCT_ PRICE can be used in an arithmetic expression even if it has no value stored in it.

Answer: C,F


NEW QUESTION # 311
Examine the data in the EMPLOYEES table:

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

  • A. select last _ name, (monthly_ salary * 12) + (monthly_ salary * 12 *monthly_ commission_ pct) AS annual_ camp FROM employees
  • B. SELECT last _ name, (monthly_ salary * 12) + (monthly_ salary * 12 * NVL (monthly_ commission_pct, 0)) AS annual _comp
  • C. SELECT last _ name, (monthly _ salary * 12) + (monthly_ commission _ pct * 12) AS FROM employees:
  • D. SELECT last _ NAME (monthly_ salary + monthly _commission _ pct) * 12 AS annual_ comp FROM employees;

Answer: B


NEW QUESTION # 312
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. listing of customers who do not have a credit limit and were born before 1980
  • B. finding the number of customers, in each city, whose marital status is 'married'.
  • C. finding the number of customers, in each city, whose credit limit is more than the average credit limit of all the customers
  • D. finding the average credit limit of male customers residing in 'Tokyo' or 'Sydney'
  • E. listing of those customers, whose credit limit is the same as the credit limit of customers residing in the city 'Tokyo'.

Answer: C,E


NEW QUESTION # 313
Refer to the exhibit.

Which three statements are true?

  • A. The MANAGER column is a foreign key referencing the EMPNO column.
  • B. The DNAME column has a unique constraint.
  • C. The DEPTNO column in the EMP table can contain the value 1.
  • D. The SALARY column must have a value .
  • E. The DEPTNO column in the EMP table can contain NULLS .
  • F. An index is created automatically in the MANAGER column.
  • G. The COMMISSION column can contain negative values .

Answer: A,C,D

Explanation:
A . The constraint commission < salary implies that COMMISSION must be less than SALARY, so it can have a negative value if the salary is greater than zero, making this statement true.
B . The constraint named CR_MGR is listed as a Referential (R) constraint on the MANAGER column, which implies it is a foreign key that would reference the EMPNO column, making this statement true.
C . The SALARY column is part of a Check (C) constraint CC_COMM that requires the SALARY to be greater than 100, which means it must have a value and cannot be NULL, making this statement true.
D . The presence of a foreign key constraint does not automatically create an index on the foreign key column. While Oracle may implicitly create indexes for primary keys, it does not do so for foreign keys.
E . The constraint deptno > 9 prevents DEPTNO from containing values less than or equal to 9, so it cannot contain the value 1, making this statement false.
F . There is no NOT NULL constraint listed on the DEPTNO column in the constraints image, so it can contain NULL values, making this statement false.
G . There is no indication of a unique constraint on the DNAME column in the constraints image; the constraint DNAME IS NOT NULL only implies that the column cannot contain NULL values, making this statement false.
Reference:
Oracle Database SQL Language Reference, 12c Release 1 (12.1): "Constraints" Oracle Database Concepts, 12c Release 1 (12.1): "Indexes and Index-Organized Tables"


NEW QUESTION # 314
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? (Choose two.)

  • A. PROJECT_IDmust be the primary key in the PROJECTSentity and foreign key in the STUDENTSentity.
  • B. STUDENT_IDmust be the primary key in the STUDENTSentity and foreign key in the PROJECTSentity.
  • C. The ERD must have a M:M relationship between the STUDENTSand PROJECTSentities that must be resolved into 1:M relationships.
  • D. 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.
  • E. The ERD must have a 1:M relationship between the STUDENTSand PROJECTSentities.

Answer: C,D

Explanation:
Explanation/Reference:
References:
http://www.oracle.com/technetwork/issue-archive/2011/11-nov/o61sql-512018.html


NEW QUESTION # 315
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