Spring Interview Q&A : Medium II

This is another package of advanced Spring related interview questions, that can be asked during interviews of Mid-Senior level. If you didn’t go through the Medium Spring Questions Part 1, you might want to start there.

I encourage you to go deeper into topics relevant for you, study them one by one, not limiting yourself to QnA resources.

You might also find useful:

• Spring Bean Lifecyle: Full Guide
• Spring MVC Full Guide

Let’s go:

1. Strategies for handling database migrations in Spring Boot applications:

Tools like Flyway or Liquibase are commonly used to manage database schema evolution in Spring Boot applications. These tools allow you to define migration scripts that are automatically executed during application startup, ensuring that the database schema is synchronized with the application code. By versioning and organizing migration scripts properly, you can apply schema changes incrementally and maintain a reliable migration history.

Example using Flyway:

<!-- Maven -->
<dependency>
    <groupId>org.flywaydb</groupId>
    <artifactId>flyway-core</artifactId>
    <version>8.5.6</version>
</dependency>

config:

spring.datasource.url=j…