Oracle
1Z0-860 · Question #189
1Z0-860 Question #189: Real Exam Question with Answer & Explanation
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Question
The Java Persistence entity Lineltem defines a composite primary key that is defined by the two columns ORDERID and LINEITEMID in the database. Which two are true? (Choose two.
Options
- ALine ltem must define a primary key class to represent the composite primary key.
- BThe composite primary key is mapped as two fields in Lineltem. No extra primary key class is
- CThe combination of〦mbedded and @Embeddable annotations can be used to denote the composite
- DThe semantics of the equals and hashCode methods of the primary key class must be consistent with
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