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Question ID 4608

A named query that sets an exclusive pessimistic on the entities returned by the query by setting the NamedQuery lockMode element to LockModeType.PESSIMISTIC_FORCE_INCREMENT. The application starts transaction and executes the query.
Which of the following statements is correct about the entities returned by the query?
 

Option A

A.    Only the current transition may modify or delete the entity instances.
 

Option B

B.    The current transaction may NOT modify or delete the entity instances.
 

Option C

C.    Other concurrent transactions may modify or delete the entity instances.
 

Option D

D.    Other concurrent transactions may modify but MAY NOT delete the entity instances.
 

Correct Answer A
Explanation


Question ID 4609

A developer wants to create a Java Persistence query that will include a subquery. Which three are true? (Choose three.)
 

Option A

A.    Subqueries can be used in a FROM clause.
 

Option B

B.    Subqueries can be used in a WHERE clause.
 

Option C

C.    The ANY expression can be used only with a subquery.
 

Option D

D.    The EXISTS expression can be used only with a subquery.
 

Option E

E.    The MEMBER expression can be used only with a subquery.
 

Correct Answer B,C,D
Explanation

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