Thoughtline Technologies Interview Questions and Answers

Q1. Explain join in sql
Ans. 
Join in SQL is used to combine rows from two or more tables based on a related column between them.
• Join is used to retrieve data from multiple tables based on a related column

• Types of joins include INNER JOIN, LEFT JOIN, RIGHT JOIN, and FULL JOIN

• Example: SELECT * FROM table1 INNER JOIN table2 ON table1.column = table2.column
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Q2. What is boxing and unboxing
Ans. 
Boxing is the process of converting a value type to a reference type, while unboxing is the opposite process.
• Boxing is done implicitly by the compiler when a value type is assigned to a reference type variable.

• Unboxing requires an explicit cast from the reference type back to the original value type.

• Example: int num = 10; object obj = num; // Boxing, converting int to object

• Example: int num2 = (int)obj; // Unboxing, co...read more
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The aptitude test was for 90 minutes and it contained questions about speed, time, distance, interest rate, profit and loss, odd man out and series

Q1. Basic questions from OOPS
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Q1. Explained my project in a detailed manner, The interviewer will ask questions about every probability and defects and about exception and error handling
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Q1. Tell about yourself which you have not described in your resume
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