THE TOP FEATURES OF ORACLE 1Z0-071 PDF DUMPS FILE AND PRACTICE TEST SOFTWARE

The Top Features of Oracle 1z0-071 PDF Dumps File and Practice Test Software

The Top Features of Oracle 1z0-071 PDF Dumps File and Practice Test Software

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Preparing for the Oracle 1z0-071 Certification Exam requires a significant amount of time and effort. Candidates are encouraged to take advantage of Oracle's online resources, including study guides, practice exams, and training courses. Candidates should also have practical experience using SQL in a real-world environment to ensure they have the necessary skills and knowledge to pass the exam.

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Oracle Database SQL Sample Questions (Q71-Q76):

NEW QUESTION # 71
Evaluate the following ALTER TABLEstatement:
ALTER TABLE orders
SET UNUSED (order_date);
Which statement is true?

  • A. The DESCRIBEcommand would still display the ORDER_DATEcolumn.
  • B. After executing the ALTER TABLEcommand, you can add a new column called ORDER_DATEto the ORDERStable.
  • C. The ORDER_DATEcolumn should be empty for the ALTER TABLEcommand to execute succsessfully.
  • D. ROLLBACKcan be used to get back the ORDER_DATEcolumn in the ORDERStable.

Answer: B


NEW QUESTION # 72
Examine the description of the EMPLOYEES table:

Which query is valid?

  • A. SELECT dept_id, MAX(AVG(salary)) FROM employees GROUP BY dept_id;
  • B. SELECT dept_id, join_date, SUM(salary) FROM employees GROUP BY dept_id;
  • C. SELECT dept_id, AVG(MAX(salary)) FROM employees GROUP BY dept_id;
  • D. SELECT dept_id, join_date, SUM(salary) FROM employees GROUP BY dept_id, join_date;

Answer: D


NEW QUESTION # 73
You execute this command:

Which two are true? (Choose two.)

  • A. It drops any triggers defined on the table.
  • B. It retains the indexes defined on the table.
  • C. It always retains the space used by the removed rows.
  • D. A FLASHBACK TABLEstatement can be used to retrieve the deleted data.
  • E. A ROLLBACKstatement can be used to retrieve the deleted data.
  • F. It retains the integrity constraints defined on the table.

Answer: B,F

Explanation:
Explanation/Reference: https://docs.oracle.com/html/E25494_01/general003.htm


NEW QUESTION # 74
Which two are true about queries using set operators (UNION, UNION ALL, INTERSECT and MINUS)?

  • A. The FOR UPDATE clause cannot be specified.
  • B. None of the set operators can be used when selecting CLOB columns.
  • C. There must be an equal number of columns in each SELECT list.
  • D. The name of each column in the first SELECT list must match the name of the corresponding column in each subsequent SELECT list.
  • E. Each SELECT statement in the query can have an ORDER BY clause.

Answer: A,C

Explanation:
A). True. When using set operators, the number and order of columns must be the same in all SELECT statements involved in the query. The data types of those columns must also be compatible.
E). True. The FOR UPDATE clause cannot be specified in a subquery or a SELECT statement that is combined with another SELECT statement by using a set operator.
B is incorrect because the column names do not need to match; only the number and data types of the columns must be compatible. C is incorrect because only the final SELECT statement in the sequence of UNION/INTERSECT/MINUS operations can have an ORDER BY clause. D is incorrect because, as of Oracle 12c, UNION ALL can be used with CLOB columns, but UNION, INTERSECT, and MINUS cannot.


NEW QUESTION # 75
Which three statements are true about Oracle synonyms?

  • A. Any user can drop a PUBLIC synonym.
  • B. A SEQUENCE can have a synonym.
  • C. A synonym cannot be created for a PL /SQL package.
  • D. A synonym created by one user can refer to an object belonging to another user.
  • E. A synonym can be available to all users .

Answer: C,D,E


NEW QUESTION # 76
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