What is ORM interview questions?
What is ORM interview questions?
Hibernate ORM framework Interview questions
- What is Hibernate?
- What are some advantages of Hibernate?
- What is ORM framework?
- What is Hibernate configuration file?
- How to print the sql queries in development environment in Hibernate?
- What are the different persistence states of Objects in Hibernate?
What are some strategies to solve the N 1 Select problem in hibernate Mcq?
Here are some strategies to solve the N+1 problem:
- pre-fetching in batches, will reduce the N+1 problem to N/K + 1 problem where K is the size of the batch.
- subselect fetching strategy.
- disabling lazy loading.
Which tasks can be handled by current package of hibernate?
It is a powerful, high performance Object-Relational Persistence and Query service for any Java Application. Hibernate maps Java classes to database tables and from Java data types to SQL data types and relieve the developer from 95% of common data persistence related programming tasks.
Is Hibernate session is thread-safe?
No, Session is not a thread-safe object, many threads can access it simultaneously. In other words, you can share it between threads.
What is Hibernate annotation?
Hibernate annotations are the newest way to define mappings without the use of XML file. You can use annotations in addition to or as a replacement of XML mapping metadata. Hibernate Annotations is the powerful way to provide the metadata for the Object and Relational Table mapping.
What is Hibernate interface?
The Session interface is the primary interface used by Hibernate applications. Hibernate can detect changes to the objects in this unit of work. We sometimes call the Session a persistence manager because it’s also the interface for persistence-related operations such as storing and retrieving objects.
What is lazy loading in hibernate?
Hibernate now can “lazy-load” the children, which means that it does not actually load all the children when loading the parent. Instead, it loads them when requested to do so. You can either request this explicitly or, and this is far more common, hibernate will load them automatically when you try to access a child.
What is hibernate caching?
Advertisements. Caching is a mechanism to enhance the performance of a system. It is a buffer memorythat lies between the application and the database. Cache memory stores recently used data items in order to reduce the number of database hits as much as possible.
What is hibernate architecture?
Hibernate has a layered architecture which helps the user to operate without having to know the underlying APIs. Hibernate makes use of the database and configuration data to provide persistence services (and persistent objects) to the application.
Is hibernate multithreaded?
When you use Hibernate for ORM and come across some functionality that requires multi threading, there are many pitfalls that might make life difficult for you.
What is lazy loading in Hibernate?
Why entity is used in Hibernate?
hibernate package tree is Hibernate specific. The @Entity annotation is used to mark this class as an Entity bean. So the class should atleast have a package scope no-argument constructor. The @Table annotation is used to specify the table to persist the data.
How to prepare for an interview for experienced?
Carefully examine the job description. During your prep work,you should use the employer’s posted job description as a guide.
What are good questions to ask an employer?
17 Good Questions to ask your Future Employer Where do you see the company going in about five years? Before you join the company, you should ensure that you know where things are going. What role do you see me playing in the company? At the very onset, you must know what to expect of you when you going to join a company. What major project is the company presently working on?
What are good interview questions to ask a company?
Tips for asking interview questions Avoid asking questions about only one topic. Include good interview questions to ask about the strategic aspects of the position. Develop a list of interview questions to ask the interviewer about the company and organizational details. Prepare some insightful questions to ask about the management of the company.
