PL/SQL Online Quiz

Q 1 - Which of the following is not true about the PL/SQL language?

A - It supports embedded SQL statements.

B - It has all the features of a modern structured programming language.

C - It is not a block-structured language.

D - Applications developed using PL/SQL are not portable.

Q 2 - Which of the following is not true about large object data types and in PL/SQL?

A - BFILE is used to store large binary objects in operating system files outside the database.

B - BLOB is used to store character data in the database.

C - CLOB is used to store large blocks of character data in the database.

D - NCLOB is used to store large blocks of NCHAR data in the database.

Q 3 - What is the output of the following code?

DECLARE
   x number := 4;
BEGIN
   LOOP
      dbms_output.put_line(x);
      x := x + 1;
      exit WHEN x > 5;
   END LOOP;
      dbms_output.put_line(x);
END;

A - 4

     5

     6

B - 4

     5

C - 4

D - None of the above.

Q 4 - Which of the following is the correct syntax for creating a VARRAY named grades, which can hold 100 integers, in a PL/SQL block?

A - TYPE grades IS VARRAY(100) OF INTEGERS;

B - VARRAY grades IS VARRAY(100) OF INTEGER;

C - TYPE grades VARRAY(100) OF INTEGER;

D - TYPE grades IS VARRAY(100) OF INTEGER;

Q 5 - Which of the following is a way of passing parameters to PL/SQL subprograms?

A - Positional notation

B - Named notation

C - Mixed notation

D - All of the above.

Q 6 - Which of the following is the correct syntax for creating an explicit cursor?

A - CURSOR cursor_name IS select_statement;

B - CREATE CURSOR cursor_name IS select_statement;

C - CREATE CURSOR cursor_name AS select_statement;

D - CURSOR cursor_name AS select_statement;

Q 7 - Which of the following is not true about PL/SQL triggers?

A - Triggers are stored programs.

B - They are automatically executed or fired when some events occur.

C - Triggers could be defined on the table, view, schema, or database with which the event is associated.

D - None of the above.

Q 8 - Which of the following is true about PL/SQL package body?

A - The package body has the codes for various methods declared in the package specification and other private declarations.

B - It is created using the CREATE PACKAGE Statement.

C - The codes, methods and types declared in package body are not hidden from code outside the package.

D - All of the above.

Q 9 - Which of the following is not true about database transactions?

A - A database transaction is an atomic unit of work.

B - It may consist of one or more related SQL statements.

C - A successfully executed SQL statement and a committed transaction are not same.

D - None of the above.

Q 10 - Which of the following is not true about the Constructors?

A - These are functions that return a new object as its value.

B - Every object has a system defined constructor method.

C - The name of the constructor is same as the object type.

D - None of the above.