TCS IT Analyst Interview Questions, Process, and Tips

Spring Boot offers advantages such as rapid development, easy configuration, and built-in features.

• Rapid development due to auto-configuration and starter dependencies

• Easy configuration with minimal XML configuration and annotations

• Built-in features like embedded servers, metrics, and health checks

• Support for microservices architecture and cloud deployment

• Integration with popular frameworks like Spring Cloud, Hibernate

Constraints in SQL are rules and restrictions that are applied to columns in a table to ensure data integrity and consistency.

• Constraints ensure data accuracy and consistency in a database

• Common constraints include NOT NULL, UNIQUE, PRIMARY KEY, FOREIGN KEY, CHECK, and DEFAULT

• NOT NULL constraint ensures a column cannot have a NULL value

• UNIQUE constraint ensures all values in a column are unique

• PRIMARY KEY constraint un...read more

Different join query examples in SQL

• INNER JOIN: Returns rows when there is at least one match in both tables

• LEFT JOIN: Returns all rows from the left table and the matched rows from the right table

• RIGHT JOIN: Returns all rows from the right table and the matched rows from the left table

• FULL OUTER JOIN: Returns rows when there is a match in one of the tables