Data & JPA interview questions

1. A.the abstraction that generates persistence implementations from repository interfaces, reducing boilerplate data code
2. B.an annotation marking a class as a persistent domain object mapped to a database table
3. C.a repository method whose database lookup is generated automatically by parsing its name, such as findByLastName
4. D.a transaction setting that suspends any existing transaction and always starts a fresh independent one

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1. A.Propagation.REQUIRES_NEW
2. B.Spring Data JPA
3. C.@Query
4. D.Derived query method

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1. A.Spring Data JPA — an annotation letting you attach a custom JPQL or native statement to a repository method
2. B.Spring Data JPA — a transaction setting that suspends any existing transaction and always starts a fresh independent one
3. C.Spring Data JPA — an annotation that wraps a method in a database transaction, committing on success and rolling back on runtime errors
4. D.Spring Data JPA — the abstraction that generates persistence implementations from repository interfaces, reducing boilerplate data code

Answer + AI explanation with Pro

1. A.a transaction setting that suspends any existing transaction and always starts a fresh independent one
2. B.the interface you extend to inherit ready-made CRUD, paging, and sorting operations for an entity
3. C.an annotation that wraps a method in a database transaction, committing on success and rolling back on runtime errors
4. D.an annotation marking a class as a persistent domain object mapped to a database table

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1. A.JpaRepository
2. B.@Query
3. C.Derived query method
4. D.Propagation.REQUIRES_NEW

Answer + AI explanation with Pro

1. A.JpaRepository — a repository method whose database lookup is generated automatically by parsing its name, such as findByLastName
2. B.JpaRepository — an annotation marking a class as a persistent domain object mapped to a database table
3. C.JpaRepository — an annotation letting you attach a custom JPQL or native statement to a repository method
4. D.JpaRepository — the interface you extend to inherit ready-made CRUD, paging, and sorting operations for an entity

Answer + AI explanation with Pro

1. A.the abstraction that generates persistence implementations from repository interfaces, reducing boilerplate data code
2. B.a transaction setting that suspends any existing transaction and always starts a fresh independent one
3. C.an annotation marking a class as a persistent domain object mapped to a database table
4. D.an annotation that wraps a method in a database transaction, committing on success and rolling back on runtime errors

Answer + AI explanation with Pro

1. A.JpaRepository
2. B.@Entity
3. C.Spring Data JPA
4. D.@Transactional

Answer + AI explanation with Pro

1. A.@Entity — an annotation that wraps a method in a database transaction, committing on success and rolling back on runtime errors
2. B.@Entity — a transaction setting that suspends any existing transaction and always starts a fresh independent one
3. C.@Entity — an annotation marking a class as a persistent domain object mapped to a database table
4. D.@Entity — the abstraction that generates persistence implementations from repository interfaces, reducing boilerplate data code

Answer + AI explanation with Pro

1. A.the abstraction that generates persistence implementations from repository interfaces, reducing boilerplate data code
2. B.a repository method whose database lookup is generated automatically by parsing its name, such as findByLastName
3. C.an annotation letting you attach a custom JPQL or native statement to a repository method
4. D.a transaction setting that suspends any existing transaction and always starts a fresh independent one

Answer + AI explanation with Pro

1. A.@Query
2. B.Derived query method
3. C.@Transactional
4. D.Propagation.REQUIRES_NEW

Answer + AI explanation with Pro

1. A.Derived query method — an annotation marking a class as a persistent domain object mapped to a database table
2. B.Derived query method — an annotation letting you attach a custom JPQL or native statement to a repository method
3. C.Derived query method — a repository method whose database lookup is generated automatically by parsing its name, such as findByLastName
4. D.Derived query method — a transaction setting that suspends any existing transaction and always starts a fresh independent one

Answer + AI explanation with Pro

1. A.the abstraction that generates persistence implementations from repository interfaces, reducing boilerplate data code
2. B.a transaction setting that suspends any existing transaction and always starts a fresh independent one
3. C.an annotation that wraps a method in a database transaction, committing on success and rolling back on runtime errors
4. D.an annotation letting you attach a custom JPQL or native statement to a repository method

Answer + AI explanation with Pro

1. A.JpaRepository
2. B.@Query
3. C.Spring Data JPA
4. D.Derived query method

Answer + AI explanation with Pro

1. A.@Query — a repository method whose database lookup is generated automatically by parsing its name, such as findByLastName
2. B.@Query — the interface you extend to inherit ready-made CRUD, paging, and sorting operations for an entity
3. C.@Query — an annotation letting you attach a custom JPQL or native statement to a repository method
4. D.@Query — an annotation that wraps a method in a database transaction, committing on success and rolling back on runtime errors

Answer + AI explanation with Pro

1. A.an annotation that wraps a method in a database transaction, committing on success and rolling back on runtime errors
2. B.an annotation marking a class as a persistent domain object mapped to a database table
3. C.a repository method whose database lookup is generated automatically by parsing its name, such as findByLastName
4. D.a transaction setting that suspends any existing transaction and always starts a fresh independent one

Answer + AI explanation with Pro

1. A.Propagation.REQUIRES_NEW
2. B.@Query
3. C.Spring Data JPA
4. D.@Transactional

Answer + AI explanation with Pro

1. A.@Transactional — a transaction setting that suspends any existing transaction and always starts a fresh independent one
2. B.@Transactional — an annotation that wraps a method in a database transaction, committing on success and rolling back on runtime errors
3. C.@Transactional — an annotation marking a class as a persistent domain object mapped to a database table
4. D.@Transactional — an annotation letting you attach a custom JPQL or native statement to a repository method

Answer + AI explanation with Pro

1. A.a repository method whose database lookup is generated automatically by parsing its name, such as findByLastName
2. B.an annotation that wraps a method in a database transaction, committing on success and rolling back on runtime errors
3. C.an annotation letting you attach a custom JPQL or native statement to a repository method
4. D.a transaction setting that suspends any existing transaction and always starts a fresh independent one

Answer + AI explanation with Pro

1. A.JpaRepository
2. B.@Query
3. C.Derived query method
4. D.Propagation.REQUIRES_NEW

Answer + AI explanation with Pro

1. A.Propagation.REQUIRES_NEW — an annotation that wraps a method in a database transaction, committing on success and rolling back on runtime errors
2. B.Propagation.REQUIRES_NEW — a repository method whose database lookup is generated automatically by parsing its name, such as findByLastName
3. C.Propagation.REQUIRES_NEW — a transaction setting that suspends any existing transaction and always starts a fresh independent one
4. D.Propagation.REQUIRES_NEW — the abstraction that generates persistence implementations from repository interfaces, reducing boilerplate data code

Answer + AI explanation with Pro