JPA annotations and operations reviewed
Quiz by Jordi Gual
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7 questions
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- Q1What is the annotation used to indicate that a class is represented in the data base with a table?@Transient@Table@Persistent@Entity30s
- Q2How do we define the name of the table wich will represent a class in the data base?With the @Entity annotationWith the @Table annotation.With the @Alias annotationWith the @Name annotation30s
- Q3Which annotation has to be used in the class "Alumne" to define the relationship that we can see in the class diagram?@OneToMany@JoinTable@ManyToOne@ManyToMany45s
- Q4What is the difference between @NamedQuery and @NamedQueries annotations?@NamedQuery is used to define single result queries and @NamedQueries for multiple result ones.@NamedQuery is used to define a single query to the database and @NamedQueries is used to group several queries defined with @NamedQuery.@NamedQuery is used to define queries with a single name and @NamedQueries is used to define multiple names to each query.@NamedQuery is used to define single field result queries and @NamedQueries for multiple field result ones.30s
- Q5The four basic JPA persistence operations are...insert(), update(), delete() and select()add(), set(), remove() and get()insert(), modify(), remove() and query()persist(), merge(), remove() and createNamedQuery()30s
- Q6What kind of query is the one we can see above if "id" is an attribute annotated as @Id?A multiple result parametric query.A multiple result non-arametric query.A single result parametric query.A single result non-parametric query.45s
- Q7What is the language used to define object oriented queries in JPA?SQLJPQLJavaEL45s
