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Oracle Database SQL Sample Questions (Q185-Q190):

NEW QUESTION # 185
Examine the description of the CUSTOMERStable:

You need to display last names and credit limits of all customers whose last name starts with A or B in lower or upper case, and whose credit limit is below 1000.
Examine this partial query:

Which two WHEREconditions give the required result?

  • A.
  • B.
  • C.
  • D.
  • E.

Answer: A,B


NEW QUESTION # 186
View the exhibit and examine the description of the DEPARTMENTS and EMPLOYEES tables.
The 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?

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

Answer: D

Explanation:
Natural join needs only one column to be the same in each table. The EMPLOYEES and DEPARTMENTS tables have two columns that are the same (Department_ID and Manager_ID)


NEW QUESTION # 187
Which statement is true regarding the SESSION_PRIVS dictionary view?

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

Answer: D

Explanation:
Regarding the SESSION_PRIVS dictionary view:
* C. It contains the current system privileges available in the user session: This view displays the system privileges granted to the current user, making it a tool for understanding which actions the user is allowed to perform in the current session.
Incorrect options:
* A and B: SESSION_PRIVS does not contain information about privileges granted to or by other users; it specifically lists the privileges available to the current session.
* D: It does not contain object privileges; these are contained in other views such as USER_TAB_PRIVS.


NEW QUESTION # 188
Which two are true about granting privileges on objects?

  • A. An object privilege can be granted to a role only by the owner of that object.
  • B. A table owner must grant the REFERENCESprivilege to allow other users to create FOREIGN KEY constraints using that table.
  • C. An object privilege can be granted to other users only by the owner of that object.
  • D. The WITH GRANT OPTIONclause can be used only by DBA users.
  • E. The owner of an object acquires all object privileges on that object by default.

Answer: B,E

Explanation:
Explanation/Reference: https://docs.oracle.com/cd/B19306_01/network.102/b14266/authoriz.htm#i1008214


NEW QUESTION # 189
Which three are true about the MERGE statement?

  • A. It can combine rows from multiple tables conditionally to insert into a single table.
  • B. It can update, insert, or delete rows conditionally in multiple tables.
  • C. It can merge rows only from tables.
  • D. It can update the same row of the target table multiple times.
  • E. It can use views to produce source rows.
  • F. It can use subqueries to produce source rows.

Answer: B,E,F


NEW QUESTION # 190
......

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