Unmasking the Best of PLSQL: Expert Level (2024)

Welcome to your Unmasking the Best of PLSQL: Expert Level

This quiz has multiple choice questions and each has only one correct answer.

Total Questions : 30

To pass this quiz you need to score 80% or above.

Time Provided : 30 minutes

Today's Date : 28 May 2025

All the best!!

Name

What is the purpose of the BULK COLLECT clause in PL/SQL?

Deselect Answer

It fetches multiple rows from a cursor into a collection at once

It fetches multiple rows from a collection into a cursor at once

It fetches a single row from a cursor into a collection

It fetches multiple columns from a cursor into a collection at once

None

Which of the following statements is used to explicitly open a cursor?

Deselect Answer

OPEN cursor_name;

FETCH cursor_name;

EXECUTE IMMEDIATE

DECLARE cursor_name;

DEFINE cursor_name;

None

What is the purpose of the PRAGMA SERIALLY_REUSABLE directive in PL/SQL?

Deselect Answer

It optimizes the memory usage of the PL/SQL cursor

It declares that the package state is not changed during its execution

It specifies that the cursor can be reused by multiple sessions

It indicates that the package can be invalidated and recompiled automatically

None

What is the purpose of the CONTINUE statement in PL/SQL?

Deselect Answer

It skips the remaining statements in the current iteration and continues with the next iteration

It returns control to the caller and exits the current block of code

It exits the loop and continues with the next iteration

It raises an exception and terminates the program

None

What is the purpose of the SAVEPOINT statement in PL/SQL?

Deselect Answer

To commit a transaction

To rollback a transaction

To start a new transaction by committing the previous transaction

To create a temporary checkpoint within a transaction

None

How can you dynamically execute any SQL query in PL/SQL?

Deselect Answer

Using the FETCH statement

Using the OPEN-FOR statement

Using the EXECUTE IMMEDIATE statement

DBMS_DYNAMIC_SQL

None

What is the purpose of the AUTONOMOUS_TRANSACTION pragma in PL/SQL?

Deselect Answer

To rollback a transaction within a PL/SQL block

It sets the isolation level of the transaction to serializable

To commit a transaction within a PL/SQL block

To create an independent transaction within a PL/SQL block

To start a new transaction within a PL/SQL block

None

Which PL/SQL construct is used to handle collections that are not known at compile time?

Deselect Answer

VARRAY

ASSOCIATIVE ARRAY

TABLE

RECORD

None

Which of the following is NOT a valid cursor attribute?

Deselect Answer

%ROWCOUNT

%FOUND

%OPEN

%NOTFOUND

None

10.

What is the difference between a PL/SQL function and a procedure?

Deselect Answer

A function cannot have parameters, while a procedure can

A function cannot return a value, while a procedure can

A function must return a value, while a procedure may or may not

A procedure cannot contain SQL statements, while a function can

None

11.

What is the purpose of the %ROWTYPE attribute in PL/SQL?

Deselect Answer

It returns the datatype of a record

It returns the structure of a record

It returns the value of a record

It returns the size of a record

None

12.

Which of the following statements is used to handle any exceptions in PL/SQL?

Deselect Answer

EXCEPTION ALL

RAISE_APPLICATION_ERROR

RAISE_ERROR

EXCEPTION WHEN OTHERS

EXCEPTION ANY

None

13.

Which of the following statement is used to create a PL/SQL package specification?

Deselect Answer

CREATE OR REPLACE PACKAGE BODY package_name;

CREATE PACKAGE BODY package_name;

CREATE PACKAGE SPECIFICATION package_name;

CREATE OR REPLACE PACKAGE package_name;

None

14.

Which of the following is the correct way to declare a cursor parameter in a PL/SQL function?

Deselect Answer

FUNCTION func_name(cur_param IN SYS_REFCURSOR)

FUNCTION func_name(cur_param SYS_REFCURSOR)

FUNCTION func_name(cur_param OUT SYS_REFCURSOR)

FUNCTION func_name(cur_param IN OUT SYS_REFCURSOR)

None

15.

Which of the following statement is used to declare a cursor variable in PL/SQL?

Deselect Answer

CURSOR cur_name IS SELECT ...;

OPEN cur_name FOR SELECT ...;

DECLARE cur_name SYS_REFCURSOR;

FETCH cur_name INTO ...;

None

16.

Which of the following packages is used for file operations in PL/SQL?

Deselect Answer

DBMS_SQL

UTL_FILE

DBMS_FILE

DBMS_OUTPUT

None

17.

What is the purpose of the FORALL statement in PL/SQL?

Deselect Answer

To perform operations on a single column

To perform bulk operations on multiple rows

To perform operations on a single row

To perform conditional operations on multiple rows

None

18.

What is the purpose of the %TYPE attribute in PL/SQL?

Deselect Answer

It returns the position of a variable or column

It returns the value of a variable or column

It returns the datatype of a variable or column

It returns the size of a variable or column

None

19.

What is the purpose of the DBMS_LOCK package in PL/SQL?

Deselect Answer

To manage user locks

To manage database locks

To manage transaction locks

To manage file locks

None

20.

Which of the following statements is used to exit from a loop in PL/SQL?

Deselect Answer

BREAK

EXIT

STOP

CONTINUE

None

21.

What is the purpose of the BULK COLLECT clause in PL/SQL?

Deselect Answer

To perform bulk operations on multiple columns

To perform bulk operations on multiple rows

To perform bulk operations on a single column

To perform bulk operations on a single row

None

22.

Which statement is used to define a user-defined exception in PL/SQL?

Deselect Answer

PRAGMA

RAISE

DECLARE

EXCEPTION

None

23.

Which of the following statement is used to recreate a PL/SQL function?

Deselect Answer

DEFINE FUNCTION function_name(parameters) RETURN data_type;

DECLARE FUNCTION function_name(parameters) RETURN data_type;

CREATE OR REPLACE FUNCTION function_name(parameters) RETURN data_type;

CREATE FUNCTION function_name(parameters) RETURN data_type;

None

24.

Which of the following is the correct way to declare a record type in PL/SQL?

Deselect Answer

CREATE RECORD rec_name (col1 data_type, col2 data_type);

RECORD rec_name (col1 data_type, col2 data_type);

DECLARE rec_name RECORD (col1 data_type, col2 data_type);

TYPE rec_name IS RECORD (col1 data_type, col2 data_type);

None

25.

What is the purpose of the NOCOPY hint in PL/SQL parameter passing?

Deselect Answer

It optimizes the performance of parameter passing by reducing memory usage

It forces the parameter to be passed by value instead of by reference

It prevents the parameter from being copied when passed to a subprogram

It ensures that the parameter is passed by reference instead of by value

None

26.

What is the purpose of the DBMS_CRYPTO package in PL/SQL?

Deselect Answer

To manage database user keys

To manage user sessions

To perform encryption and decryption operations

To perform file operations

None

27.

What is the purpose of the DBMS_ALERT package in PL/SQL?

Deselect Answer

To send and receive emails

To perform encryption and decryption

To profile and analyze the performance of PL/SQL code

To manage database alerts and notifications

None

28.

What is the purpose of the DBMS_OUTPUT.PUT_LINE procedure in PL/SQL?

Deselect Answer

It executes a SQL statement and returns the output

It displays a message on the screen or in the output buffer

It writes data to a file

It retrieves the current date and time

None

29.

How do you handle multiple exceptions and process differently in PL/SQL?

Deselect Answer

By using nested BEGIN...END blocks

By using the RAISE statement

By using the WHEN OTHERS exception handler

By using multiple EXCEPTION sections

None

30.

What is the purpose of the SQL%BULK_ROWCOUNT attribute in PL/SQL?

Deselect Answer

It returns the number of rows affected by a DML statement for each iteration of a FORALL statement

It returns the number of open cursors in the current session

It returns the number of rows processed by a SQL statement

It returns the number of elements in a collection

None

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