Tata Consultancy Services Programmer/Analyst interview questions

During the interview, the focus was primarily on assessing technical expertise in SQL, Java, and C++. The interviewer began with SQL, asking about database management concepts such as indexing, joins, and transaction control. They tested my ability to write complex SQL queries involving multiple tables and conditions. The conversation then shifted to Java, where I was questioned on core concepts including object-oriented programming, exception handling, and multithreading. I was also asked to solve a few problems using Java, which required implementing various design patterns and optimizing code for performance.