1Z0-071 TEST QUESTIONS | CERTIFICATION 1Z0-071 BOOK TORRENT

1z0-071 Test Questions | Certification 1z0-071 Book Torrent

1z0-071 Test Questions | Certification 1z0-071 Book Torrent

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Candidates who pass the Oracle 1z0-071 exam will earn the Oracle Database SQL Certified Associate certification. Oracle Database SQL certification is recognized by employers worldwide and can help individuals stand out in the job market. Additionally, the certification can serve as a stepping stone to more advanced certifications in Oracle database administration and development.

Oracle 1z0-071 certification exam is ideal for IT professionals who have experience working with SQL programming and database management. 1z0-071 Exam is suitable for database administrators, developers, and business intelligence professionals who want to improve their skills and demonstrate their expertise in SQL programming. Additionally, 1z0-071 exam is also suitable for students and entry-level professionals who want to pursue a career in database management.

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Oracle Database SQL Sample Questions (Q204-Q209):

NEW QUESTION # 204
In the EMPLOYEEStable there are 1000 rows and employees are working in the company for more than 10 years.
Evaluate the following SQL statement:

What would be the result?

  • A. It gives an error because multiple NVLfunctions are used in an expression.
  • B. It executes successfully and updates the records of those employees who have been working in the company for more than 600 days.
  • C. It gives an error because NVLfunction cannot be used with UPDATE.
  • D. It executes successfully but no rows updated.

Answer: B


NEW QUESTION # 205
Which two will execute successfully?

  • A. SELECT COALESCE('DATE',SYSDATE) FROM (SELECT NULL AS "DATE" FROM DUAL) ;
  • B. SELECT COALESCR('DATE', SYSDATE) FROM DUAL;
  • C. SELECT NVL('DATE',200) FROM (SELECT NULL AS "DATE" FROM DUAL);
  • D. SELECT NVL('DATE',SYSDATE) FROM DUAL;
  • E. SELECT COALESCE(O,SYSDATE) TRCH DUAL;

Answer: C

Explanation:
D). True. The NVL function can replace a NULL value with a specified value, and it does not require the data types to match exactly, allowing implicit conversion where possible. Here, 'DATE' is a string literal, and 200 is a number, and since the selected column is NULL, NVL will return 200.
The other options are incorrect because the COALESCE function requires all arguments to be of the same data type or at least compatible types that Oracle can implicitly convert. In A and E, the use of COALESCE with a string literal 'DATE' and SYSDATE (which is a date type) is not compatible without explicit conversion. Option C has a typo (TRCH instead of FROM) and is mixing data types incorrectly.


NEW QUESTION # 206
What is the primary difference between the relational database (RDB) and object-oriented database (OODB) models?

  • A. OODB incorporates methods with data structure definition, whereas RDB does not allow this.
  • B. RDB allows the definition of relationships between different tables, whereas OODB does not allow this.
  • C. RDB supports only E.F. Codd's rules, whereas OODB does not support them.
  • D. OODB supports multiple objects in the same database, whereas RDB supports only tables.

Answer: A

Explanation:
Explanation/Reference:


NEW QUESTION # 207
Examine these SQL statements which execute successfully:

Which two statements are true after execution? (Choose two.)

  • A. The primary key constraint will be enabled and IMMEDIATE.
  • B. The foreign key constraint will be enabled and DEFERRED.
  • C. The foreign key constraint will be enabled and IMMEDIATE.
  • D. The foreign key constraint will be disabled.
  • E. The primary key constraint will be enabled and DEFERRED.

Answer: C,E


NEW QUESTION # 208
Examine these SQL statements that are executed in the given order:

What will be the status of the foreign key EMP_MGR_FK?

  • A. It will remain disabled and can be enabled only by dropping the foreign key constraint and re-creating it.
  • B. It will remain disabled and can be re-enabled manually.
  • C. It will be enabled and immediate.
  • D. It will be enabled and deferred.

Answer: B


NEW QUESTION # 209
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