Question

1.The core API used to access a database       [ Choose ]           ...

1.The core API used to access a database

      [ Choose ]            JPQL            Element            Entity            Annotations            JDBC            Persistence Unit            JPA            Entity Manager      

2.An xml file that provides database connectivity information

      [ Choose ]            JPQL            Element            Entity            Annotations            JDBC            Persistence Unit            JPA            Entity Manager      

3.A Java class that is mapped to a database table

      [ Choose ]            JPQL            Element            Entity            Annotations            JDBC            Persistence Unit            JPA            Entity Manager      

4.The newer API that makes accessing a database easier

      [ Choose ]            JPQL            Element            Entity            Annotations            JDBC            Persistence Unit            JPA            Entity Manager      

5.These are added to a Java class to make it an entity class

      [ Choose ]            JPQL            Element            Entity            Annotations            JDBC            Persistence Unit            JPA            Entity Manager      

Homework Answers

Answer #1

1. The core API used to access database is

JDBC

(Java DataBase Connectivity) It has a set of Java classes and methods that allow embedding of database calls in server applications.

2. An xml file that provides database connectivity information

- Persistence Unit

A persistance unit is a xml file that contains definitions for database connectivity infomrations.

3. A Java class that is mapped to a database table

- Entity Manager

Entity Manager will create the entitymanger instance by using createEntityManager () method. The entitymanager object creates entitytransaction instance for transaction management. By using entitymanager object, we can persist entities into database.

4. The newer API that makes accessing a database easier

- JPA

Java Persistence API is a collection of classes and methods to persistently store the vast amounts of data into a database.

5. These are added to a Java class to make it an entity class

-Entity

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