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TCS Plsql Developer Interview Questions and Answers for Experienced

Updated 21 Feb 2025

10 Interview questions

A Plsql Developer was asked
Q. What is the difference between the HAVING and GROUP BY clauses?
Ans. 

HAVING is used to filter groups while GROUP BY is used to group rows based on a column.

  • HAVING is used with GROUP BY to filter groups based on a condition

  • GROUP BY is used to group rows based on a column

  • HAVING is used after GROUP BY in a query

  • GROUP BY is used before HAVING in a query

  • Example: SELECT department, AVG(salary) FROM employees GROUP BY department HAVING AVG(salary) > 5000;

A Plsql Developer was asked
Q. Explain Triggers.
Ans. 

Triggers are database objects that automatically execute in response to certain events.

  • Triggers can be used to enforce business rules, audit data changes, and maintain referential integrity.

  • They can be defined to execute before or after an event, such as a row being inserted, updated, or deleted.

  • Triggers can also be nested, meaning one trigger can execute another trigger.

  • Examples of triggers include automatically ...

Plsql Developer Interview Questions Asked at Other Companies for Experienced

asked in TCS
Q1. What is temp table and temp variable in plsql?
asked in TCS
Q2. What is procedure in plsql and it's syntax and difference between ... read more
asked in TCS
Q3. Write a PL/SQL program to print the sequence 103, 99, 96...3.
asked in TCS
Q4. What is a mutating table or mutating trigger?
asked in Cognizant
Q5. Write a SQL query to delete duplicate records from a table.
A Plsql Developer was asked
Q. What is a mutating table or mutating trigger?
Ans. 

A mutating table or mutating trigger occurs when a trigger tries to update a table that is currently being modified.

  • Mutating table occurs when a trigger references the table that is being modified.

  • It can happen when a trigger is fired by an INSERT, UPDATE, or DELETE statement on the table.

  • This can lead to unpredictable results or errors, such as ORA-04091: table is mutating, trigger/function may not see it.

  • To avoi...

A Plsql Developer was asked
Q. Explain cursors, including their definition and types.
Ans. 

Cursors are used to retrieve and manipulate data from a database in PL/SQL.

  • Cursors are like pointers to a result set, allowing us to fetch and process rows one by one.

  • There are two types of cursors: implicit and explicit.

  • Implicit cursors are automatically created by Oracle when executing a SQL statement.

  • Explicit cursors are declared and used by the programmer.

  • Explicit cursors provide more control and flexibility c...

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A Plsql Developer was asked
Q. Write a PL/SQL program to print the sequence 103, 99, 96...3.
Ans. 

PL/SQL program to print numbers in descending order from 103 to 3

  • Use a loop to iterate from 103 to 3

  • Print each number in the loop

  • Decrement the loop counter by 3 in each iteration

🔥 Asked by recruiter 2 times
A Plsql Developer was asked
Q. What is the difference between TRUNCATE and DELETE?
Ans. 

Truncate removes all data, delete removes selected data.

  • Truncate is faster than delete as it doesn't log individual row deletions.

  • Truncate cannot be rolled back, delete can be.

  • Truncate resets identity columns, delete doesn't.

  • Truncate doesn't fire triggers, delete does.

  • Truncate is a DDL operation, delete is a DML operation.

A Plsql Developer was asked
Q. What is an autonomous transaction?
Ans. 

Autonomous transaction is a separate transaction initiated by a parent transaction.

  • It allows a subtransaction to commit or rollback independently of the parent transaction.

  • It is useful for logging or auditing purposes.

  • It can be created using the PRAGMA AUTONOMOUS_TRANSACTION statement.

  • Example: A parent transaction updates a table, while an autonomous transaction logs the changes made.

  • Example: An autonomous transac...

Are these interview questions helpful?
A Plsql Developer was asked
Q. How do you determine if two tables contain similar data?
Ans. 

To find if two tables have similar data, compare the records in both tables using a join or a subquery.

  • Use a join operation to compare the records in both tables based on a common column.

  • If the tables have a primary key, you can join them on that key to check for similar data.

  • Alternatively, you can use a subquery to compare the data in both tables and check for matching records.

  • Consider using the MINUS operator to...

A Plsql Developer was asked
Q. What is temp table and temp variable in plsql?
Ans. 

Temp table is a table created temporarily in memory. Temp variable is a variable that holds temporary data.

  • Temp table is used to store data temporarily during a session

  • Temp variable is used to hold temporary data that is not needed after a certain point

  • Temp table and variable are created using the 'CREATE GLOBAL TEMPORARY' and 'DECLARE' statements respectively

  • Example: CREATE GLOBAL TEMPORARY TABLE temp_table (id N...

A Plsql Developer was asked
Q. What is procedure in plsql and it's syntax and difference between procedure and function?
Ans. 

A procedure in PL/SQL is a named block of code that can be called and executed multiple times.

  • Syntax: CREATE [OR REPLACE] PROCEDURE procedure_name [(parameter1 [mode1] datatype1 [, parameter2 [mode2] datatype2]...)] IS

  • Difference between procedure and function: Procedures do not return a value, while functions return a value.

  • Procedures are used to perform an action, while functions are used to calculate and return ...

TCS Plsql Developer Interview Experiences for Experienced

6 interviews found

Interview experience
1
Bad
Difficulty level
Easy
Process Duration
Less than 2 weeks
Result
Not Selected

I appeared for an interview in Feb 2023.

Round 1 - Resume Shortlist 
Pro Tip by AmbitionBox:
Keep your resume crisp and to the point. A recruiter looks at your resume for an average of 6 seconds, make sure to leave the best impression.
View all tips
Round 2 - Technical 

(2 Questions)

  • Q1. 1. What are Triggers? Explain and differentiate type of Triggers? 2. What are Views? Materialized View? 3. Explain Job role in the Current Company? 4. What is Index? Type of Indexes? Advantages and Drawbac...
  • Ans. 

    Overview of PL/SQL concepts including triggers, views, indexes, and more.

    • Triggers are database procedures that automatically execute in response to certain events on a table or view.

    • Types of triggers: BEFORE, AFTER, INSTEAD OF; e.g., BEFORE INSERT trigger to validate data before insertion.

    • Views are virtual tables based on the result of a query; Materialized Views store the result physically for faster access.

    • Indexes im...

  • Answered by AI
  • Q2. Reason for Job change
  • Ans. 

    I seek new challenges and opportunities for growth that align with my career goals and aspirations in PL/SQL development.

    • Desire for professional growth: I'm looking for a role that offers more opportunities for learning and advancement.

    • Seeking new challenges: I want to tackle more complex projects that can enhance my skills and experience.

    • Cultural fit: I'm looking for a company culture that aligns more closely with my ...

  • Answered by AI

Interview Preparation Tips

Interview preparation tips for other job seekers - I gave the interview as an experienced, Got selected but still I haven't received Offer letter
Interview experience
5
Excellent
Difficulty level
-
Process Duration
-
Result
-
Round 1 - Resume Shortlist 
Pro Tip by AmbitionBox:
Don’t add your photo or details such as gender, age, and address in your resume. These details do not add any value.
View all tips
Round 2 - HR 

(1 Question)

  • Q1. Salary negotiation, notice period, immediate joining, policy,
Round 3 - Technical 

(1 Question)

  • Q1. Coding is must in plsql developer

Interview Preparation Tips

Interview preparation tips for other job seekers - Keep your notes with you. It's helpful when you give your technical.
Interview experience
3
Average
Difficulty level
Moderate
Process Duration
2-4 weeks
Result
Not Selected

I appeared for an interview in Oct 2022.

Round 1 - Resume Shortlist 
Pro Tip by AmbitionBox:
Keep your resume crisp and to the point. A recruiter looks at your resume for an average of 6 seconds, make sure to leave the best impression.
View all tips
Round 2 - Technical 

(1 Question)

  • Q1. Technical question related about based on project and domain knowledge
Round 3 - HR 

(1 Question)

  • Q1. Asked about flexibility and discussion with salary

Interview Preparation Tips

Interview preparation tips for other job seekers - I had selected still I didn’t receive the offer letter

I applied via Approached by Company and was interviewed in Jun 2022. There was 1 interview round.

Round 1 - Technical 

(1 Question)

  • Q1. 1. Tell me about yourself. 2. Topics like Stored procedure, functions, cursors, package.

Interview Preparation Tips

Topics to prepare for TCS Plsql Developer interview:
  • PLSQL
  • SQL
  • Stored Procedures
  • Sql function
Interview preparation tips for other job seekers - Prepare those topics.
I got shortlisted after the interview but due to some technical issu in their portal, I couldn't upload my documents. I mailed them multiple times but got no help, no calls from any person and some of my friends also told me they faced many situations and none from TCS helped them out.
So, my advice will be don't for that company. Prepare for others.

I applied via Naukri.com and was interviewed in Feb 2022. There were 3 interview rounds.

Round 1 - Resume Shortlist 
Pro Tip by AmbitionBox:
Keep your resume crisp and to the point. A recruiter looks at your resume for an average of 6 seconds, make sure to leave the best impression.
View all tips
Round 2 - Technical 

(8 Questions)

  • Q1. What is temp table and temp variable in plsql?
  • Q2. What is mutating table or mutating trigger?
  • Ans. 

    A mutating table or mutating trigger occurs when a trigger tries to update a table that is currently being modified.

    • Mutating table occurs when a trigger references the table that is being modified.

    • It can happen when a trigger is fired by an INSERT, UPDATE, or DELETE statement on the table.

    • This can lead to unpredictable results or errors, such as ORA-04091: table is mutating, trigger/function may not see it.

    • To avoid mut...

  • Answered by AI
  • Q3. What is autonomous transaction?
  • Q4. Cursors definition and types explained
  • Ans. 

    Cursors are used to retrieve and manipulate data from a database in PL/SQL.

    • Cursors are like pointers to a result set, allowing us to fetch and process rows one by one.

    • There are two types of cursors: implicit and explicit.

    • Implicit cursors are automatically created by Oracle when executing a SQL statement.

    • Explicit cursors are declared and used by the programmer.

    • Explicit cursors provide more control and flexibility compar...

  • Answered by AI
  • Q5. Explain about Triggers ?
  • Q6. Truncate vs delete difference?
  • Q7. A plsql programme to print 103,99,96...3?
  • Q8. What is procedure in plsql and it's syntax and difference between procedure and function?
  • Ans. 

    A procedure in PL/SQL is a named block of code that can be called and executed multiple times.

    • Syntax: CREATE [OR REPLACE] PROCEDURE procedure_name [(parameter1 [mode1] datatype1 [, parameter2 [mode2] datatype2]...)] IS

    • Difference between procedure and function: Procedures do not return a value, while functions return a value.

    • Procedures are used to perform an action, while functions are used to calculate and return a val...

  • Answered by AI
Round 3 - HR 

(5 Questions)

  • Q1. What are your salary expectations?
  • Q2. Share details of your previous job.
  • Q3. Tell me about yourself.
  • Q4. How do you find if two table having similer data
  • Ans. 

    To find if two tables have similar data, compare the records in both tables using a join or a subquery.

    • Use a join operation to compare the records in both tables based on a common column.

    • If the tables have a primary key, you can join them on that key to check for similar data.

    • Alternatively, you can use a subquery to compare the data in both tables and check for matching records.

    • Consider using the MINUS operator to find...

  • Answered by AI
  • Q5. Difference between having and group by?

Interview Preparation Tips

Topics to prepare for TCS Plsql Developer interview:
  • Crack concepts ,
Interview preparation tips for other job seekers - Learn everything explain it in your way interviewers may confuse with some questions be aware

Skills evaluated in this interview

Interview Questionnaire 

2 Questions

  • Q1. They have only one phone interview
  • Q2. They asking about full sql and plsql

Interview Preparation Tips

Round: Resume Shortlist
Experience: Detailed description of explaination full topics

Interview questions from similar companies

Interview Questionnaire 

2 Questions

  • Q1. Index , collection, partition, package, pragma autonomous transaction
  • Q2. Answer confidently
Are these interview questions helpful?

I applied via Naukri.com and was interviewed before Jul 2021. There were 2 interview rounds.

Round 1 - Technical 

(1 Question)

  • Q1. What is performing tuning?
  • Ans. 

    Performance tuning is the process of optimizing the performance of a system or application.

    • Identifying and resolving performance bottlenecks

    • Optimizing database queries and indexes

    • Improving hardware and network configurations

    • Reducing resource usage and improving response time

    • Monitoring and analyzing system performance

  • Answered by AI
Round 2 - Technical 

(1 Question)

  • Q1. Explain stored procedure and PLSQL concept in detail?
  • Ans. 

    Stored procedure is a precompiled program that is stored in a database and can be called by other programs.

    • Stored procedures are used to encapsulate business logic and improve performance.

    • PL/SQL is a procedural language used to write stored procedures in Oracle databases.

    • Stored procedures can accept input parameters and return output parameters or result sets.

    • They can also be used to enforce security and data integrity...

  • Answered by AI

Interview Preparation Tips

Interview preparation tips for other job seekers - Need to focus query writing
Stored procedures...and do some practical coding in tools like SQL developer and isqlplus version 11G and more..
Round 1 - Technical 

(2 Questions)

  • Q1. Basic SQL related question
  • Q2. Good knowledge on pl SQL is preferred, few in-depth questions . Keep your cool and answer every question with best of your knowledge

Interview Preparation Tips

Interview preparation tips for other job seekers - Don't panic and answer questions with your best experience and knowledge.
Interview experience
3
Average
Difficulty level
Moderate
Process Duration
4-6 weeks
Result
Not Selected

I applied via Referral and was interviewed before Jun 2023. There was 1 interview round.

Round 1 - Assignment 

Oracle pl sql developer

Interview Preparation Tips

Interview preparation tips for other job seekers - Np

TCS Interview FAQs

How many rounds are there in TCS Plsql Developer interview for experienced candidates?
TCS interview process for experienced candidates usually has 2-3 rounds. The most common rounds in the TCS interview process for experienced candidates are Technical, Resume Shortlist and HR.
How to prepare for TCS Plsql Developer interview for experienced candidates?
Go through your CV in detail and study all the technologies mentioned in your CV. Prepare at least two technologies or languages in depth if you are appearing for a technical interview at TCS. The most common topics and skills that interviewers at TCS expect are PLSQL, SQL, Oracle SQL, Performance Tuning and SQL Development.
What are the top questions asked in TCS Plsql Developer interview for experienced candidates?

Some of the top questions asked at the TCS Plsql Developer interview for experienced candidates -

  1. What is temp table and temp variable in pls...read more
  2. What is procedure in plsql and it's syntax and difference between procedure and...read more
  3. A plsql programme to print 103,99,96.....read more
What are the most common questions asked in TCS Plsql Developer HR round for experienced candidates?

The most common HR questions asked in TCS Plsql Developer interview are for experienced candidates -

  1. What are your salary expectatio...read more
  2. Share details of your previous j...read more
  3. Tell me about yourse...read more
How long is the TCS Plsql Developer interview process?

The duration of TCS Plsql Developer interview process can vary, but typically it takes about less than 2 weeks to complete.

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Overall Interview Experience Rating

3/5

based on 3 interview experiences

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TCS Plsql Developer Salary
based on 1.5k salaries
₹3.2 L/yr - ₹9 L/yr
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