PL/SQL Quiz – PLSQL MCQ Online Test

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Are you aiming to be the best in PL/SQL Language? Then let’s begin. We are equipping the PL/SQL Quiz on this page. Also, this PLSQL MCQ Online Test consists of various questions from different levels. So, by facing this PL SQL online quiz, you can gain knowledge on the type of questions asked in the interview. And, to be active in the programming languages, primary education is essential, which you can gain through these online mock tests. Thus, the contenders need to check the below sections to practice the online test.

PL/SQL Quiz Details

Contenders can have a broad look at the above table. As you check the above table, you can gain an overview regarding the exam. Candidates can check the type of questions asked in the exam, the time limit for the test, and also the type of exam.

PL/SQL MCQ Quiz Instructions

Before taking the test, aspirants have to follow the instructions that we are providing in this section.

• The number of questions in the quiz is 24
• No time limit is set for the test
• Each question carries one mark each.
• Also, there is no negative marking
• Click the ” Submit Test ” button given at the bottom of this page to Submit your answers.
• And, do not refresh the Page.

PL/SQL Online Test

What does PL/SQL stand for?
A) Programming Language/Structured Query Language
B) Python Language/Structured Query Language
C) Perl Language/Structured Query Language
D) PHP Language/Structured Query Language
Answer: A
Explanation: PL/SQL stands for Programming Language/Structured Query Language. It is a procedural language that Oracle developed to enhance the capabilities of SQL.

Which of the following is not a PL/SQL data type?
A) NUMBER
B) VARCHAR2
C) BOOLEAN
D) CHAR3
Answer: D
Explanation: CHAR3 is not a valid PL/SQL data type. Valid character data types are CHAR and VARCHAR2.

Which of the following is a valid PL/SQL variable declaration?
A) v_salary NUMBER := 5000;
B) v_salary := 5000;
C) v_salary = 5000;
D) v_salary NUMBER;
Answer: A
Explanation: A valid PL/SQL variable declaration includes the data type and initial value, if applicable. Option A correctly declares a NUMBER variable named v_salary and initializes it with the value 5000.

Which of the following is a valid PL/SQL loop statement?
A) DO WHILE
B) WHILE DO
C) FOR LOOP
D) LOOP WHILE
Answer: C
Explanation: The correct syntax for a PL/SQL loop statement is FOR LOOP. This loop allows you to specify the loop variable, start value, and end value.

What is the difference between a function and a procedure in PL/SQL?
A) A function returns a value, while a procedure does not.
B) A function can take parameters, while a procedure cannot.
C) A procedure can be called from within a function, but not vice versa.
D) A function is used for data manipulation, while a procedure is used for flow control.
Answer: A
Explanation: A function is a PL/SQL block that returns a single value, while a procedure is a block that does not return a value. Both can take parameters, and there is no restriction on calling a procedure from within a function or vice versa.

What is the difference between IN and OUT parameters in PL/SQL?
A) IN parameters can be modified within the block, while OUT parameters cannot.
B) OUT parameters can be modified within the block, while IN parameters cannot.
C) Both IN and OUT parameters can be modified within the block.
D) Neither IN nor OUT parameters can be modified within the block.
Answer: B
Explanation: IN parameters are read-only within the block and cannot be modified, while OUT parameters are write-only and must be assigned a value before the block exits.

What is a cursor in PL/SQL?
A) A database object that stores query results.
B) A pointer to a specific row in a table.
C) A control structure used to loop through a set of rows returned by a query.
D) A variable that stores a collection of data.
Answer: C
Explanation: A cursor is a control structure that allows you to loop through a set of rows returned by a query. It provides a way to process each row one at a time.

Which of the following is not a valid cursor attribute in PL/SQL?
A) %FOUND
B) %NOTFOUND
C) %FETCHED
D) %ROWCOUNT
Answer: C
Explanation: %FETCHED is not a valid cursor attribute in PL/SQL. Valid cursor attributes are %FOUND, %NOTFOUND, and %ROWCOUNT.

What is an exception in PL/SQL?
A) An error condition that disrupts normal program flow.
B) A user-defined data type.
C) A control structure used to terminate a loop.
D) A function that is called when an error occurs.
Answer: A
Explanation: An exception in PL/SQL is an error condition that disrupts normal program flow. It can be raised explicitly or by the system, and can be handled using the EXCEPTION block.

Which of the following is not a valid PL/SQL trigger?
A) BEFORE INSERT
B) AFTER UPDATE
C) BEFORE DELETE
D) AFTER ALTER
Answer: D
Explanation: AFTER ALTER is not a valid PL/SQL trigger. Valid triggers include BEFORE and AFTER triggers for INSERT, UPDATE, and DELETE operations.

What is the purpose of the RETURNING clause in a DML statement?
A) To return the number of rows affected by the statement.
B) To return the values of specified columns in the affected rows.
C) To return a boolean value indicating success or failure of the statement.
D) To return the primary key values of the affected rows.
Answer: B
Explanation: The RETURNING clause in a DML statement allows you to retrieve the values of specified columns in the affected rows. This can be useful for auditing or other purposes.

Which of the following is not a valid PL/SQL collection type?
A) INDEX BY TABLE
B) ASSOCIATIVE ARRAY
C) VARRAY
D) BINARY TREE
Answer: D
Explanation: BINARY TREE is not a valid PL/SQL collection type. Valid collection types include INDEX BY TABLE, ASSOCIATIVE ARRAY, and VARRAY.

Which of the following is not a valid PL/SQL exception?
A) NO_DATA_FOUND
B) TOO_MANY_ROWS
C) VALUE_TOO_LARGE
D) DUP_VAL_ON_INDEX
Answer: C
Explanation: VALUE_TOO_LARGE is not a valid PL/SQL exception. Valid exceptions include NO_DATA_FOUND, TOO_MANY_ROWS, and DUP_VAL_ON_INDEX.

What is the purpose of the pragma EXCEPTION_INIT in PL/SQL?
A) To raise an exception explicitly.
B) To handle an exception explicitly.
C) To associate an exception with a named error code.
D) To disable an exception in a specific block of code.
Answer: C
Explanation: The pragma EXCEPTION_INIT in PL/SQL allows you to associate an exception with a named error code. This can be useful for handling specific errors in a more granular way.

Which of the following is not a valid PL/SQL function for string manipulation?
A) LOWER
B) UPPER
C) LENGTH
D) COUNT
Answer: D
Explanation: COUNT is not a valid PL/SQL function for string manipulation. Valid string manipulation functions include LOWER, UPPER, and LENGTH.

Which of the following is not a valid PL/SQL control structure?
A) IF-THEN-ELSE
B) FOR LOOP
C) WHILE LOOP
D) REPEAT-UNTIL
Answer: D
Explanation: REPEAT-UNTIL is not a valid PL/SQL control structure. Valid control structures include IF-THEN-ELSE, FOR LOOP, and WHILE LOOP.

What is the purpose of the UTL_FILE package in PL/SQL?
A) To manipulate files on the file system.
B) To access remote databases.
C) To execute shell commands.
D) To generate random numbers.
Answer: A
Explanation: The UTL_FILE package in PL/SQL provides procedures for manipulating files on the file system, such as reading and writing text files.

Which of the following is not a valid PL/SQL data manipulation statement?
A) INSERT
B) DELETE
C) CREATE
D) UPDATE
Answer: C
Explanation: CREATE is not a valid PL/SQL data manipulation statement. Valid data manipulation statements include INSERT, DELETE, and UPDATE.

What is the purpose of the %TYPE attribute in PL/SQL?
A) To specify the data type of a variable.
B) To specify the length of a string variable.
C) To specify the precision and scale of a numeric variable.
D) To derive the data type of a variable from an existing column or variable.
Answer: D
Explanation: The %TYPE attribute in PL/SQL allows you to derive the data type of a variable from an existing column or variable. This can be useful for ensuring type consistency and reducing the likelihood of errors.

Which of the following is not a valid PL/SQL cursor attribute?
A) %FOUND
B) %NOTFOUND
C) %OPEN
D) %CURRENT
Answer: D
Explanation: %CURRENT is not a valid PL/SQL cursor attribute. Valid cursor attributes include %FOUND, %NOTFOUND, and %OPEN.

About PL/SQL

So, in this section, let us check some details about the language. Oracle Corporation develops PL/SQL in late 1980’s as the procedural extension of SQL language and Oracle Relational Database. PL/SQL is entirely portable and high-performance transaction language. Also, it provides a built-in, interpreted and OS independent programming environment. Check some of the key features of PL/SQL programming language.

• PL/SQL is tightly integrated with SQL.
• It supports object-oriented programming.
• It supports structured programming through functions and procedures.
• It helps the development of web applications and server pages.

Benefits of Practicing PL/SQL Quiz

Well, the applicants will be beneficial if they practice the provided PL/SQL Quiz. Therefore, without fail, the students need to take the online test.

• Know the details of the programming language.
• Experience to solve a problem using simple query language.
• Time management, Accuracy, Durability, Speed can be gained.
• Clear the campus interviews easily.

How To Check PL/SQL Programming Online Test Results

After the completion of the test, candidates have to click on Submit the test. Also, this helps you to submit your answers. Once your responses get submitted, you can check your results. There is no time limit for the examination. Therefore, the applicants need to submit the test manually. Hence, the contenders need to check all the instructions carefully which are mentioned above. Check tghe score by submitting the online test.

We are assuming that this information is helpful for you to attend the quiz. Have any queries? Let us know by commenting in the comment box below. Also, stay tuned to our website Freshers Now for more updates.