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Home Oracle 1z0-146

Oracle 1z0-146 Exam Practice Questions (P. 4)

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Question #16
Identify the two type of PL/SQL programs for which you consider setting the compilation method to native mode. (choose two.)
  1. A
    PL/SQL programs that are still in the debugging phase of development
  2. B
    PL/SQL programs that have computation-intesive procedural operations
  3. C
    A PL/SQL program, which is called with the same parameters by multiple sessions
  4. D
    PL/SQL programs that spend most of their execution time in executing SQL statements

Correct Answer:
BC

Question #17
See the Exhibit:


The PL/SQL block fails to execute;
What could be the reason?
  1. A
    Nested tables cannot be returned by a function
  2. B
    The NEWNAMES nested table has not been initialized
  3. C
    The assignment operator cannot be used to transfer all the element values from GROUP1 to GROUP2
  4. D
    The third element of OLDNAMES cannot be assigned to the thrid element of GROUP1 because they are of incosistent data types
  5. E
    LAST_NAME values cannot be assigned to the V_LAST_NAMES nested table because local collection types are not allowed in SQL statements

Correct Answer:
E

Question #18
See the Exhibit:


DATA_FILES is a directory object that contains the DETAILS.txt text file. You have the required permissions to access the directory object. You have a table using the following command:
CREATE TABLE clob_tab(col2,CLOB);
Examine the PL/SQL statement in exhibit that you execute for loading the external text file into the table that currently has no rows. The PL/SQL block results in an error. What correction must be done to ensure the PL/SQL block executes successfully?
  1. A
    The L_OUT variable must be initialized to an empty locator
  2. B
    The L_OUT variable has to be declared as a temporary LOB
  3. C
    The A_CLOB variable has to be declared as a temporary LOB
  4. D
    The clause RETURINING col2 INTO a a_clob should be added to the INSERT statement to correctly initialize the locator

Correct Answer:
D

Question #19
Which two types of query result cannot be stored in the query result cache? (Choose two.)
  1. A
    Subquery results
  2. B
    Results of a query having the SYSDATE function
  3. C
    Results of a query having the GROUP BY clause
  4. D
    Results of a query having the DATE data type in the WHERE clause

Correct Answer:
AB

Question #20


What is the outcome?
  1. A
    The table is created successfully
  2. B
    It generates an error because DEFAULT cannot be set to EMPTY_BLOB() during table creation
  3. C
    It generates an error because DEFAULT cannot be set to null for a CLOB column during table creation
  4. D
    It generates an error because DEFAULT cannot be set to null for a BFILE column during table creation

Correct Answer:
A

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