Master Hibernate and JPA with Spring Boot in 100 Steps - Step 19 - JPA and Hibernate Annotations - @NamedQuery and @Name

The video tutorial explains the concept of named queries in Java, highlighting their benefits in avoiding hardcoding and promoting code reuse. It demonstrates how to create a named query using Javax persistence annotations and run JUnit tests to verify their execution. The tutorial also covers handling multiple named queries using the 'named queries' annotation and concludes with a summary of the key points discussed.

What is the main advantage of using named queries in Java Persistence?

• They automatically optimize the query execution.

• They improve the performance of the database.

• They eliminate the need to hardcode queries multiple times.

• They allow for dynamic query generation.

Which annotation is used to define a named query in Java Persistence?

• @NamedQueries

• @QueryDef

• @QueryName

• @NamedQuery

What is the purpose of the 'javax.persistence' annotation in the context of named queries?

• To optimize the query performance.

• To assign a name to the query for reuse.

• To define the structure of the query.

• To execute the query immediately.

What error occurs when trying to define multiple named queries without using the correct annotation?

• Invalid query name.

• Query execution timeout.

• Duplicate annotation of a non-repeatable type.

• Syntax error in the query.

Which annotation should be used to define multiple named queries?

• @MultipleQueries

• @NamedQuery

• @NamedQueries

• @QueryList