Advantages of Spring Boot framework? Annotations in Spring or Spring Boot? What are Primary key and foreign key in SQL? What is @Qualofier in Spring Boot?

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Spring Boot framework provides rapid development, easy configuration, and built-in features. Annotations simplify development. Primary key uniquely identifies a record in a table, foreign key establishes a relationship between tables. @Qualifier in Spring Boot is used to specify which bean to autowire.

Spring Boot offers rapid development, easy configuration, and built-in features like embedded servers.
Annotations in Spring or Spring Boot simplify development by reducing boilerplate code.
Primary key uniquely identifies a record in a table, while foreign key establishes relationships between tables.
@Qualifier in Spring Boot is used to specify which bean to autowire when multiple beans of the same type exist.

Advantages of Spring Boot framework? Annotations in Spring or Spring Boot? What are Primary key and foreign key in SQL? What is @Qualofier in Spring Boot?

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