To answer this question, let's understand the purpose of the session.load() method in the context of working with a database.

The session.load() method is used in Object-Relational Mapping (ORM) frameworks, such as Hibernate in Java or SQLAlchemy in Python, to load an object from the database based on its identifier (ID) without actually hitting the database. It returns a proxy object that is associated with the given ID.

In the case where there is no matching database row for the given ID, the session.load() method does not throw any exception or return NULL or an empty object. Instead, it returns a proxy object that represents the requested entity, but the proxy object is not backed by a corresponding row in the database.

Therefore, the correct answer is:

Option C) Unrecoverable exception - This option is correct because the session.load() method does not throw an exception when there is no matching database row. Instead, it returns a proxy object without any data, which might lead to an unrecoverable exception if you try to access properties or perform operations on the proxy object.

Note: It is important to handle this scenario properly in your code to avoid any unexpected behavior or errors.

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To answer this question, we need to understand the difference between Query.list() and Query.iterate() in Hibernate, a popular Java-based ORM (Object-Relational Mapping) framework.

Option A) Query.list() - This option is correct because it retrieves all the instances that match the criteria specified in the query and returns a list of those instances. The retrieved instances are loaded into memory, and subsequent access to the instances does not require any additional database round-trips. This can lead to better performance when instances are not in the session or second-level cache.

Option B) Query.iterate() - This option is incorrect because it returns an iterator over the instances that match the query criteria. The instances are loaded one by one as they are accessed, and each access requires a database round-trip to retrieve the instance. This can result in additional overhead and slower performance compared to Query.list(), especially when instances are not in the session or second-level cache.

Option C) Both are the same - This option is incorrect because Query.list() and Query.iterate() have different behaviors and performance characteristics, as explained above.

Option D) None of the above - This option is incorrect because Option A, Query.list(), is the correct answer as it provides better performance when instances are not in the session or second-level cache.

Therefore, the correct answer is Option A, Query.list(), because it gives better performance when instances are not in the session or second-level cache.

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To answer this question, we need to understand what the code session.load(Employee.class) does.

In Hibernate, the load() method is used to retrieve an entity object from the database based on its identifier. It returns a proxy object of the requested entity class.

In the given code, Employee.class represents the class of the entity we want to retrieve. The session.load(Employee.class) method retrieves the Employee entity object from the database.

Now, let's go through each option:

Option A) Yes - This option is incorrect. The code session.load(Employee.class) will return a proxy object of the Employee class, not a fully-initialized entity object.

Option B) No - This option is correct. The code session.load(Employee.class) will return a proxy object of the Employee class, not a fully-initialized entity object.

Option C) None - This option is incorrect. The code session.load(Employee.class) will return a proxy object of the Employee class.

Option D) None of the above - This option is incorrect. Option B is the correct answer.

The correct answer is Option B) No. The code session.load(Employee.class) returns a proxy object of the Employee class, not a fully-initialized entity object.

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