TCS Production Interview Questions and Answers

Q1. Air conditioning ,working on ac
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Q2. Working on compresser
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Q1. Tell me about yourself.
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Q2. No question and no problem
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Q1. Self introduction
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Q2. Work experience
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Q3. Which department are u working
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Q4. Timings and salary
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Q1. Name and experience and quality and checking etc
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Q2. How can handle ur problem and team work
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Q3. Times and salary
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About current project and roles and resposibilities etc

Q1. SQL COMPLEX QUERIES and PL SQL, CRON JOBS, SERVICE NOW
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Q2. What are difference between SQL and PL SQL
Ans. 
SQL is a standard language for managing relational databases, while PL/SQL is a procedural language extension for SQL.
• SQL is a standard language for querying and manipulating data in relational databases.

• PL/SQL is a procedural language extension for SQL, allowing for more complex programming logic.

• SQL is used for data manipulation and retrieval, while PL/SQL is used for writing stored procedures and functions.

• SQL state...read more
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Q3. Explain types of joins?
Ans. 
Types of joins are used in databases to combine rows from two or more tables based on a related column between them.
• Inner Join: Returns rows when there is at least one match in both tables.

• Left Join (or Left Outer Join): Returns all rows from the left table and the matched rows from the right table.

• Right Join (or Right Outer Join): Returns all rows from the right table and the matched rows from the left table.

• Full Join...read more
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Q4. Diffence between correlated and non correlated subquary?
Ans. 
Correlated subquery refers to a subquery that is dependent on the outer query, while non-correlated subquery can be executed independently.
• Correlated subquery is executed for each row processed by the outer query, while non-correlated subquery is executed only once.

• Correlated subquery is slower in performance compared to non-correlated subquery.

• Example: SELECT * FROM table1 WHERE column1 = (SELECT MAX(column2) FROM tab
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Q5. Find departement wise total sal?
Ans. 
To find department wise total salary, sum up the salaries of employees in each department.
• Group employees by department

• Calculate total salary for each department

• Display department wise total salary
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Easy logical questions

Q1. Easy general questions asked
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Q2. General questions
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Q3. Strength and weaknesses, about project
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Q1. Interview questions .
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