Master Java Web Services and REST API with Spring Boot- Step 3: Introduction to JPA

The video tutorial introduces JPA and its role in solving object-relational mapping issues. It explains how JPA maps application classes to database tables using entities and relationships. The Entity Manager is highlighted for managing data operations, while JPQL and Criteria API are introduced for querying. The tutorial covers mapping annotations, relationships, and inheritance strategies, providing a big-picture overview of JPA's capabilities. Future steps will involve hands-on practice with these concepts.

What is the main problem that JPA addresses in application development?

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How does JPA allow mapping between application classes and database tables?

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What role does the entity manager play in JPA?

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What are the key features of JPA that facilitate data retrieval?

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Explain the difference between JPQL and SQL.

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What is the purpose of the @Table annotation in JPA?

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Describe how JPA handles inheritance mapping.

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