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What is ORM? - Object Relational Model is a programming technique.....
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What is Hibernate? - Hibernate is an ORM tool. Hibernate is a solution for object-relational mapping...
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Why do you need ORM tool like Hibernate? - Hibernate is open source ORM tool. Hibernate reduces the time to perform database operations...
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What are the main advantages of ORM like hibernate? - Distributed transaction can simply be performed by using ORM tools...
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What are the core interfaces of Hibernate framework? - Session Interface, SessionFactory interface, Configuration Interface, Transaction Interface, Query and Criteria interface...
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Explain how to configure Hibernate - Hibernate uses a file by name hibernate.cfg.xml. This file creates the connection pool and establishes the required environment....
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What is a HibernateTemplate? - HibernateTemplate is a helper class that is used to simplify the data access code.
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What are the benefits of HibernateTemplate? - HibernateTemplate, which is a Spring Template class, can simplify the interactions with Hibernate Sessions...
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What is Hibernate proxy? - Mapping of classes can be made into a proxy instead of a table....
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Explain the types of Hibernate instance states - The persistent class’s instance can be in any one of the three different states. ....
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What are Collection types in Hibernate? - A collection is defined as a one-to-many reference...
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What is lazy initialization in hibernate? - The delaying the object creation or calculating a value or some process until the first time it is needed...
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What is lazy fetching in hibernate? - Lazy fetching is associated with child objects loading for its parents..
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Difference between sorted and ordered collection in hibernate - The sorted collection is a collection that is sorted using the Java collections framework....
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Difference between transient and detached objects - Transient objects do not have association with the databases and session objects...
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Advantages and disadvantages of detached objects - Detached objects passing can be done across layers upto the presentation layer without using Data Transfer Objects. ...
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What is Hibernate Query Language (HQL)? - Hibernate Query Language is designed for data management using Hibernate technology...
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Flow of Hibernate communication with RDBMS - The Hibernate configuration is to be loaded and creation of configuration object is done. The mapping of all hbm files will be performed automatically...
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Explain the role of Session interface in Hibernate - Session interface is a single threaded object..
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What is a SessionFactory? - The SessionFactory is the concept that is a single data store and thread safe..
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Role of SessionFactory interface plays - The SessionFactory is used to create Sessions...
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Difference between load() and get() in Hibernate - The load() method throws an exception,when the unique id could not found in the database...
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What is the difference between merge and update? - update () : When the session does not contain an persistent instance with the same identifier...
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What is the advantage of Hibernate over jdbc? - Hibernate code will work well for all databases, for ex: Oracle,MySQL, etc. where as JDBC is database specific...
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Why hibernate is advantageous over Entity Beans & JDBC - An entity bean always works under the EJB container, which allows reusing of the object external to the container....
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Difference between Entity Beans and Hibernate - Entity beans are to be implemented by containers, classes, descriptors..
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Difference between Hibernate and Spring - Hibernate is an ORM tool for data persistency. Spring is a framework for enterprise applications....
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