In the realm of database management and application development, PL/SQL (Procedural Language/Structured Query Language) holds a prominent place as a powerful and essential tool. Derived from SQL, PL/SQL extends the capabilities of SQL by adding procedural constructs, enabling developers to create complex and efficient database-driven applications. As organizations continue to rely on databases to store and manage their critical data, the demand for professionals skilled in PL/SQL remains steadfast.
Whether you’re a seasoned developer aiming to brush up on your PL/SQL knowledge or a job seeker preparing for a technical interview, understanding the nuances of this language is crucial. This blog aims to assist you in your preparation by presenting a curated list of the top 50 PL/SQL interview questions and their comprehensive answers. Whether you’re a newcomer looking to grasp the basics or an experienced developer aiming to fine-tune your expertise, these questions span a wide range of topics to cater to various levels of proficiency.
Why PL/SQL Matters?
Structured Query Language (SQL) is the foundation of most database operations, allowing users to interact with and manipulate data. However, as applications grow in complexity, the need for additional capabilities arises. This is where PL/SQL steps in. By providing procedural constructs like loops, conditional statements, and exception handling, PL/SQL empowers developers to create intricate logic and business rules that SQL alone cannot accomplish.
Top 50 Questions and answers
PL/SQL Introduction
PL/SQL (Procedural Language/Structured Query Language) is a powerful extension of SQL that adds procedural constructs to the standard SQL language. It allows developers to create complex, database-centric applications by incorporating features such as loops, conditions, exception handling, and transactions. PL/SQL provides a way to write procedural logic directly in the database, enabling developers to perform data manipulation, validation, and business rule enforcement efficiently. Additionally, PL/SQL offers the ability to create reusable code modules using packages, and it supports triggers to automate actions based on data changes.
Question 1:
What is the primary purpose of PL/SQL in the context of database development?
a) Defining database schema and structure.
b) Writing complex HTML code for web applications.
c) Creating dynamic web pages using server-side scripting.
d) Adding procedural constructs to SQL for creating powerful, database-driven applications.
Answer: d) Adding procedural constructs to SQL for creating powerful, database-driven applications.
Explanation: PL/SQL enhances SQL by incorporating procedural programming constructs like loops, conditions, and exception handling, enabling developers to build robust and sophisticated applications that interact with databases.
Question 2:
In which part of a PL/SQL block would you typically declare variables and define procedures?
a) Declarative section.
b) Executable section.
c) Exception-handling section.
d) Cursor declaration section.
Answer: a) Declarative section.
Explanation: The declarative section of a PL/SQL block is where you declare variables, constants, types, and define procedures and functions. This section is used for setting up the environment and preparing the necessary elements before the main logic execution.
Question 3:
You need to ensure that a certain piece of code within a PL/SQL block executes even if an exception occurs. Which PL/SQL construct would you use to achieve this?
a) Package.
b) Trigger.
c) Procedure.
d) Exception handler.
Answer: d) Exception handler.
Explanation: An exception handler in PL/SQL is used to catch and handle exceptions that might occur during the execution of the code. By using exception handlers, you can specify what actions should be taken in case an exception is raised, ensuring that critical parts of the code still execute smoothly.
Question 4:
You are designing a system that requires executing a sequence of SQL statements as a single unit of work, ensuring that either all statements are executed or none are. Which PL/SQL feature would you employ for this requirement?
a) Cursor.
b) Trigger.
c) Transaction.
d) Package.
Answer: c) Transaction.
Explanation: Transactions in PL/SQL allow you to group a set of SQL statements into a single unit of work. The ACID (Atomicity, Consistency, Isolation, Durability) properties of transactions ensure that either all the statements within the transaction are executed successfully or none of them are, maintaining data integrity.
Question 5:
You want to create a reusable module that contains related procedures, functions, and variables to encapsulate a specific functionality. Which PL/SQL construct would be the most suitable for achieving this?
a) Package.
b) Cursor.
c) Trigger.
d) View.
Answer: a) Package.
Explanation: A PL/SQL package is used to encapsulate related procedures, functions, variables, and other constructs within a single unit. It provides a way to modularize and organize code for better maintainability and reusability.
Question 6:
In a scenario where you want to automatically perform certain actions in response to changes in a table’s data, which PL/SQL construct would you use?
a) Cursor.
b) Function.
c) Trigger.
d) Exception.
Answer: c) Trigger.
Explanation: A PL/SQL trigger is a construct used to automatically execute a set of actions in response to specific events occurring in the database, such as data changes (insert, update, delete) on a table. Triggers can be used to enforce business rules, maintain data integrity, and automate tasks based on these events.
Configuration
Configuration in PL/SQL refers to the process of setting up and adjusting various parameters and settings that govern the behavior and performance of PL/SQL programs. This includes configuring compiler options, optimization settings, error handling mechanisms, and other runtime aspects.
Question 1:
Which PL/SQL compiler directive is used to specify that a function result should be cached in memory for better performance?
A) PRAGMA EXCEPTION_INIT
B) PRAGMA INLINE
C) PRAGMA AUTONOMOUS_TRANSACTION
D) PRAGMA RESULT_CACHE
Answer:
D) PRAGMA RESULT_CACHE
Explanation:
The PRAGMA RESULT_CACHE directive is used to indicate that a function result should be cached in memory, improving performance by avoiding redundant computations. This is particularly useful for functions that have expensive calculations.
Question 2:
In PL/SQL, what is the purpose of the PRAGMA EXCEPTION_INIT directive?
A) It is used to declare an exception.
B) It is used to associate an error code with an exception.
C) It is used to handle an exception.
D) It is used to suppress compiler warnings.
Answer:
B) It is used to associate an error code with an exception.
Explanation:
The PRAGMA EXCEPTION_INIT directive is used to associate a specific error code with a user-defined exception, which allows you to handle that exception more precisely in your code.
Question 3:
Which parameter can be set using the ALTER SESSION statement to configure the date format for displaying date values in PL/SQL?
A) NLS_DATE_FORMAT
B) DATE_DISPLAY_FORMAT
C) PLSQL_DATE_FORMAT
D) SESSION_DATE_DISPLAY
Answer 3:
A) NLS_DATE_FORMAT
Explanation:
The ALTER SESSION statement with the NLS_DATE_FORMAT parameter can be used to configure the date format for displaying date values in PL/SQL. This setting affects the way date values are displayed in SQL queries and PL/SQL code.
Question 4:
Which PL/SQL compiler directive is used to enable the inlining of specific functions?
A) PRAGMA EXCEPTION_INIT
B) PRAGMA INLINE
C) PRAGMA AUTONOMOUS_TRANSACTION
D) PRAGMA INLINE_FUNCTION
Answer:
B) PRAGMA INLINE
Explanation:
The PRAGMA INLINE directive is used to indicate that a specific function should be inlined by the compiler, which means that the function’s code will be expanded inline at the call site for optimization purposes.
Question 5:
In PL/SQL, which system event can be used to trace and log the execution flow and variable values for debugging purposes?
A) SQL_TRACE
B) PLSQL_DEBUG
C) DBMS_OUTPUT
D) DBMS_PROFILER
Answer:
D) DBMS_PROFILER
Explanation:
The DBMS_PROFILER package provides tools for profiling and tracing PL/SQL code execution. It allows you to gather detailed information about execution times and variable values, aiding in debugging and performance tuning.
Question 6:
Which PL/SQL compiler directive is used to mark a transaction as autonomous, allowing it to perform its own commit and rollback operations independently?
A) PRAGMA EXCEPTION_INIT
B) PRAGMA INLINE
C) PRAGMA AUTONOMOUS_TRANSACTION
D) PRAGMA AUTOCOMMIT
Answer:
C) PRAGMA AUTONOMOUS_TRANSACTION
Explanation:
The PRAGMA AUTONOMOUS_TRANSACTION directive is used to create an autonomous transaction, which is a separate transaction that can be committed or rolled back independently from the main transaction. This is useful for maintaining data consistency and separation in specific scenarios.
PL/SQL programming constructs
PL/SQL (Procedural Language/Structured Query Language) is a powerful extension of SQL used for writing procedural code in Oracle databases. It allows developers to create stored procedures, functions, triggers, and more. Here are six scenario-based MCQs to test your knowledge of PL/SQL programming constructs:
might occur during the execution of a block of code. It allows you to catch and handle specific errors gracefully.
Question 2:
In PL/SQL, what is the purpose of the CURSOR declaration?
A) To define a variable
B) To create a new table
C) To declare a cursor variable
D) To define a query result set
Answer: D) To define a query result set
Explanation: A CURSOR declaration in PL/SQL is used to define a query result set that can be iterated over using a loop. It allows you to retrieve and process multiple rows of data from a database query.
Question 3:
Which PL/SQL construct is used to execute a block of code repeatedly as long as a specified condition is true?
A) WHILE loop
B) FOR loop
C) CASE statement
D) IF-THEN statement
Answer: A) WHILE loop
Explanation: A WHILE loop in PL/SQL allows you to repeatedly execute a block of code as long as a specified condition remains true. It’s useful for iterating over a block of code dynamically.
Question 4:
What is the purpose of the %ROWTYPE attribute in PL/SQL?
A) It declares a variable
B) It represents a table column
C) It defines a cursor
D) It creates a trigger
Answer: B) It represents a table column
Explanation: The %ROWTYPE attribute in PL/SQL is used to represent the structure of a row in a table. It allows you to declare variables that match the columns of a table, simplifying data manipulation.
Question 5:
Which PL/SQL construct is used to define reusable blocks of code that can be called multiple times?
A) Function
B) Cursor
C) Trigger
D) Package
Answer: A) Function
Explanation: A function in PL/SQL is a named block of code that can accept input parameters and return a value. It allows you to encapsulate and reuse code logic in your programs.
Question 6:
In PL/SQL, what does the COMMIT statement do?
A) Deletes data from a table
B) Rolls back uncommitted changes
C) Saves pending changes permanently
D) Creates a new transaction
Answer: C) Saves pending changes permanently
Explanation: The COMMIT statement in PL/SQL is used to permanently save the changes made during the current transaction to the database. It ensures that the changes become permanent and visible to other users.
Code Block
In PL/SQL programming, code blocks are fundamental constructs used to group and organize sets of statements. These blocks serve as the building blocks of a PL/SQL program, allowing developers to define logical structures for control flow, looping, branching, and exception handling. Code blocks provide a structured approach to writing modular and maintainable code in Oracle’s PL/SQL language.
Question 1:
Which control structure is used to iterate over a range of values and execute a set of statements multiple times in PL/SQL?
a) IF-ELSE statement
b) CASE statement
c) WHILE LOOP statement
d) GOTO statement
Answer:
b) CASE statement
Explanation:
The CASE statement allows you to evaluate different conditions and execute specific blocks of code based on the condition that matches.
Question 3:
What is the purpose of the EXIT statement in a PL/SQL loop?
a) To skip the current iteration and move to the next iteration.
b) To terminate the loop and continue with the next statement after the loop.
c) To check the exit condition of the loop.
d) To pause the loop execution temporarily.
Answer:
b) To terminate the loop and continue with the next statement after the loop.
Explanation:
The EXIT statement is used to exit or terminate the loop and continue with the next statement after the loop.
Question 4:
Which PL/SQL construct is used to define reusable pieces of code that can be called multiple times within a program?
a) Subprogram
b) Control block
c) Trigger
d) Schema
Answer:
a) Subprogram
Explanation:
A subprogram in PL/SQL is a named PL/SQL block that can be defined and called multiple times within a program for code reusability.
Question 5:
What will be the output of the following PL/SQL code block?
DECLARE
v_number NUMBER := 7;
BEGIN
IF v_number BETWEEN 5 AND 10 THEN
DBMS_OUTPUT.PUT_LINE(‘Number is between 5 and 10’);
ELSE
DBMS_OUTPUT.PUT_LINE(‘Number is not between 5 and 10’);
END IF;
END;
a) Number is between 5 and 10
b) Number is not between 5 and 10
c) Error: Invalid comparison operator
d) Error: Missing END statement
Answer:
a) Number is between 5 and 10
Explanation:
The code checks if the value of v_number is between 5 and 10 (inclusive) and prints the corresponding message.
Question 6:
Which PL/SQL construct is used to raise and handle exceptions in a structured manner?
a) CASE statement
b) EXCEPTION block
c) GOTO statement
d) FOR LOOP statement
Answer:
b) EXCEPTION block
Explanation:
The EXCEPTION block in PL/SQL is used to handle exceptions and errors that may occur during program execution in a structured manner.
Code Management
Code management in PL/SQL involves the structured organization, optimization, and maintenance of the codebase to enhance efficiency, reusability, and maintainability of PL/SQL programs. This domain focuses on various techniques and constructs used to manage code blocks, procedures, functions, triggers, and exceptions within the PL/SQL environment. Effective code management ensures that the code is well-structured, easy to maintain, and adheres to best practices.
Question 1:
Which PL/SQL construct is used to group multiple SQL and PL/SQL statements together as a single unit?
a) Function
b) Procedure
c) Package
d) Trigger
Answer: b) Procedure
Explanation: Procedures in PL/SQL allow you to group multiple SQL and PL/SQL statements together into a single unit that can be executed as a whole.
Question 2:
Which of the following is NOT a benefit of using packages in PL/SQL?
a) Encapsulation
b) Code reusability
c) Easier debugging
d) Dynamic SQL execution
Answer: d) Dynamic SQL execution
Explanation: While packages offer encapsulation, code reusability, and easier debugging, dynamic SQL execution is not directly related to the benefits of using packages.
Question 3:
In PL/SQL, what is the purpose of a cursor?
a) To perform arithmetic operations
b) To store and manage data records
c) To execute dynamic SQL statements
d) To control the flow of execution
Answer: b) To store and manage data records
Explanation: Cursors in PL/SQL are used to manage and manipulate sets of data records fetched from the database.
Question 4:
Which statement is true regarding triggers in PL/SQL?
a) Triggers are only fired manually by the programmer.
b) Triggers can be associated only with tables, not views.
c) Triggers can be used to enforce data integrity rules.
d) Triggers can’t be used to modify data in the database.
Answer: c) Triggers can be used to enforce data integrity rules.
Explanation: Triggers are PL/SQL constructs that automatically execute in response to specific events, such as data changes, and can be used to enforce data integrity rules.
Question 5:
What is the purpose of the SAVEPOINT statement in PL/SQL?
a) To commit a transaction
b) To create a new database user
c) To define a point within a transaction to which you can later roll back
d) To create a new table
Answer: c) To define a point within a transaction to which you can later roll back
Explanation: SAVEPOINT statement in PL/SQL allows you to create a point within a transaction that can be used for later rollback if needed.
Question 6:
Which clause is used in PL/SQL exception handling to catch all types of exceptions?
a) WHEN OTHERS
b) CATCH ALL
c) EXCEPTION ALL
d) WHEN EXCEPTION
Answer: a) WHEN OTHERS
Explanation: The WHEN OTHERS clause in PL/SQL exception handling is used to catch all types of exceptions not explicitly handled by other exception handlers.
Question 7:
What is the purpose of the RAISE statement in PL/SQL?
a) To raise an exception
b) To terminate the PL/SQL block
c) To execute dynamic SQL statements
d) To commit the transaction
Answer: a) To raise an exception
Explanation: The RAISE statement in PL/SQL is used to raise an exception explicitly, which can then be handled using exception handlers.
Question 8:
Which pragma is used in PL/SQL to suppress compiler warnings for a specific code block?
a) SUPPRESS_WARNINGS
b) IGNORE_WARNINGS
c) DISABLE_WARNINGS
d) WARNING
Answer: d) WARNING
Explanation: The WARNING pragma is used to suppress compiler warnings for a specific code block in PL/SQL.
Question 9:
What does the AUTONOMOUS_TRANSACTION pragma allow you to do in PL/SQL?
a) Automatically commit transactions
b) Perform multiple DML operations in a single transaction
c) Create new database tables
d) Execute dynamic SQL statements
Answer: a) Automatically commit transactions
Explanation: The AUTONOMOUS_TRANSACTION pragma allows you to create an independent transaction that can be automatically committed without affecting the main transaction.
PL/SQL Interview Questions: Advanced Datatypes
In the realm of PL/SQL programming, advanced data types play a pivotal role in enabling developers to handle complex data structures and scenarios more efficiently. These data types go beyond the fundamental scalar data types like numbers and strings, allowing developers to work with intricate data structures, collections, and specialized data formats.
Question 1:
Which advanced datatype in PL/SQL allows you to store unstructured or semi-structured data, such as JSON, XML, and documents?
A) RECORD
B) TABLE
C) VARRAY
D) BLOB
E) JSON_OBJECT
Answer: D) BLOB
Explanation: BLOB (Binary Large Object) is an advanced datatype used to store binary data, including unstructured or semi-structured data like images, documents, and multimedia files.
Question 2:
Which advanced datatype is used to create an ordered collection of elements with a maximum size and allows indexing and iteration?
A) TABLE
B) VARRAY
C) RECORD
D) CURSOR
E) MAP
Answer: B) VARRAY
Explanation: VARRAY (Variable-Size Array) is an advanced datatype that represents an ordered collection of elements with a fixed maximum size. Elements are accessed using indexes.
Question 3:
Which advanced datatype is suitable for creating an associative array with key-value pairs?
A) TABLE
B) VARRAY
C) RECORD
D) INDEX BY TABLE
E) MAP
Answer: D) INDEX BY TABLE
Explanation: INDEX BY TABLE is used to create an associative array in PL/SQL, where data is stored in key-value pairs, allowing efficient access using the keys.
Question 4:
Which advanced datatype allows you to define a structure that can hold multiple data elements, each with its own datatype?
A) TABLE
B) VARRAY
C) RECORD
D) INDEX BY TABLE
E) STRUCT
Answer: C) RECORD
Explanation: RECORD is used to create a composite datatype that holds multiple data elements, each with its own datatype. It’s often used to represent a single row of data.
Question 5:
Which advanced datatype is suitable for creating an unordered collection of elements with a unique key for each element?
A) TABLE
B) VARRAY
C) RECORD
D) INDEX BY TABLE
E) SET
Answer: E) SET
Explanation: SET is an advanced datatype that represents an unordered collection of elements, and each element must have a unique key within the set.
Question 6:
Which advanced datatype is used to represent a query’s result set for processing within PL/SQL?
A) TABLE
B) VARRAY
C) RECORD
D) CURSOR
E) RESULTSET
Answer: D) CURSOR
Explanation: CURSOR is an advanced datatype used to handle a query’s result set. It allows navigation through the query results and processing each row.
Question 7:
Which advanced datatype allows you to store and manipulate large amounts of character data?
A) CLOB
B) BLOB
C) VARRAY
D) BINARY_INTEGER
E) LONG
Answer: A) CLOB
Explanation: CLOB (Character Large Object) is an advanced datatype used to store large amounts of character data, such as text documents, articles, and strings.
Question 8:
Which advanced datatype is used to represent a pointer to data stored in the database?
A) POINTER
B) REF CURSOR
C) BLOB
D) CLOB
E) VARRAY
Answer: B) REF CURSOR
Explanation: REF CURSOR is an advanced datatype used to create a dynamic pointer to a query result set, allowing flexible retrieval and processing of data.
Question 9:
Which advanced datatype is appropriate for storing time zone information along with date and time data?
A) TIMESTAMP
B) INTERVAL
C) TIMEZONE
D) TIME
E) TIMESTAMPTZ
Answer: E) TIMESTAMPTZ
Explanation: TIMESTAMPTZ (Timestamp with Time Zone) is used to store date and time information along with time zone details, making it suitable for handling time zone conversions.
PL/SQL Interview Questions: Transaction Processing
Transaction processing in PL/SQL involves managing groups of database operations as single units of work to ensure data integrity, consistency, and reliability. PL/SQL provides mechanisms for initiating, managing, and controlling transactions, enabling developers to maintain the integrity of data even in complex multi-step operations. Transactions help to safeguard against unexpected failures and maintain the database’s ACID (Atomicity, Consistency, Isolation, Durability) properties.
Question 1:
Which of the following is the primary purpose of using transactions in PL/SQL?
a) Improving code readability
b) Enhancing performance
c) Ensuring data consistency and integrity
d) Reducing memory consumption
Answer: c) Ensuring data consistency and integrity
Explanation: Transactions are used to group one or more SQL statements into a single logical unit of work. They ensure that either all the statements within the transaction are executed or none of them are, thus maintaining the consistency and integrity of the data.
Question 2:
In PL/SQL, what statement is used to explicitly begin a transaction?
a) COMMIT
b) ROLLBACK
c) START TRANSACTION
d) BEGIN TRANSACTION
Answer: d) BEGIN TRANSACTION
Explanation: In PL/SQL, transactions are implicitly started by default when a SQL statement is executed. There is no explicit “BEGIN TRANSACTION” statement; transactions are typically managed using COMMIT and ROLLBACK statements.
Question 3:
What is the purpose of the ROLLBACK statement in PL/SQL?
a) To save changes made by transactions
b) To undo changes made by transactions
c) To commit the transaction
d) To retrieve data from the database
Answer: b) To undo changes made by transactions
Explanation: The ROLLBACK statement is used to undo the changes made by the current transaction and restore the database to its state before the transaction started.
Question 4:
What is a savepoint in PL/SQL transaction processing?
a) A point where data is permanently saved
b) A point where a transaction is committed
c) A point where the transaction can be rolled back to
d) A point where the database is backed up
Answer: c) A point where the transaction can be rolled back to
Explanation: A savepoint is a point within a transaction to which you can later roll back, while still committing the remaining changes in the transaction. It allows for partial rollbacks.
Question 5:
Which isolation level ensures that a transaction’s changes are not visible to other transactions until it’s committed?
a) READ COMMITTED
b) SERIALIZABLE
c) REPEATABLE READ
d) READ UNCOMMITTED
Answer: b) SERIALIZABLE
Explanation: SERIALIZABLE is the highest isolation level, ensuring that no other transactions can access the data being modified until the transaction is committed, preventing issues like dirty reads or non-repeatable reads.
Question 6:
What happens when a deadlock occurs in a PL/SQL transaction?
a) The database automatically resolves the deadlock.
b) One of the transactions is terminated to resolve the deadlock.
c) All involved transactions are rolled back.
d) The transactions involved wait indefinitely.
Answer: b) One of the transactions is terminated to resolve the deadlock.
Explanation: In a deadlock situation, where two or more transactions are waiting for each other to release resources, the database’s deadlock detection mechanism typically terminates one of the transactions to resolve the deadlock.
Question 7:
Which statement is used to permanently save the changes made by a transaction in PL/SQL?
a) SAVEPOINT
b) ROLLBACK
c) COMMIT
d) ROLLBACK TO
Answer: c) COMMIT
Explanation: The COMMIT statement is used to permanently save the changes made by a transaction to the database. Once committed, the changes are visible to other transactions.
Question 8:
What is the purpose of the SET TRANSACTION statement in PL/SQL?
a) To start a new transaction
b) To define the isolation level for a transaction
c) To create a savepoint within a transaction
d) To execute multiple transactions simultaneously
Answer: b) To define the isolation level for a transaction
Explanation: The SET TRANSACTION statement is used to define properties of a transaction, including the isolation level. It allows you to control the level of isolation between concurrent transactions.
Question 9:
Which of the following statements is true regarding autonomous transactions in PL/SQL?
a) They can’t be rolled back.
b) They are used for transactions involving multiple tables.
c) They can’t be used in triggers.
d) They can make changes to the database independently of the calling transaction.
Answer: d) They can make changes to the database independently of the calling transaction.
Explanation: Autonomous transactions are independent of the calling transaction. They allow you to make changes to the database without affecting the calling transaction, and they can even commit independently.
Question 10:
What is the purpose of the SAVEPOINT statement in PL/SQL?
a) To commit a transaction
b) To set a point to which the transaction can be rolled back
c) To create an isolated transaction
d) To start a new transaction
Answer: b) To set a point to which the transaction can be rolled back
Explanation: The SAVEPOINT statement is used to set a specific point within a transaction to which you can later roll back. It’s mainly used for creating points for partial rollbacks.
PL/SQL Interview Questions: Final Words
In conclusion, mastering PL/SQL is a significant step towards becoming a proficient database professional. As you embark on your journey to conquer the world of PL/SQL development, remember that knowledge is key, but practical application and continuous learning are equally important.
These Top 50 PL/SQL interview questions and answers have provided you with a solid foundation to tackle interviews with confidence. However, the world of technology is ever-evolving, and it’s crucial to stay updated with the latest trends, techniques, and best practices in PL/SQL and database management.
As you prepare for your interviews, keep in mind that problem-solving skills, a deep understanding of database concepts, and the ability to write efficient, maintainable code are highly valued by employers. Be ready to demonstrate not only your theoretical knowledge but also your practical expertise through real-world examples and projects.
Remember, interviews are not just about showcasing what you know, but also about conveying your enthusiasm, adaptability, and willingness to grow. Approach each question with a clear and structured thought process, and don’t be afraid to discuss your thought rationale with the interviewer.
Lastly, believe in yourself and your abilities. Confidence in your skills will shine through and leave a lasting impression. Best of luck on your PL/SQL interview journey and your continued exploration of the exciting world of database development!
