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Technology
Questions
03 Jan, 2025
Most Frequently asked Interview Questions of entity-framework(2024)
Database migrations
in Entity Framework (EF) are a way of managing changes to the database schema over time in sync with the changes made in the application's data model (e.g., adding/removing fields, changing data types, etc.). Migrations allow developers to evolve the database schema in a structured and manageable way without losing data or causing inconsistency between the application's model and the actual database.
Technology
Questions
03 Jan, 2025
Most Frequently asked Interview Questions of entity-framework
Database concurrency
refers to the situation where multiple users or processes try to access and modify the same data simultaneously. In a multi-user environment, this can lead to problems such as
lost updates
, where one user's changes overwrite another's, or
dirty reads
, where data is read before it is fully committed.
Technology
Questions
03 Jan, 2025
Most Frequently asked entity-framework Interview Questions and Answers
Entity Framework (EF)
provides a powerful and flexible way to manage changes to the database schema over time through a feature known as
migrations
. Migrations help you evolve your database schema as your application’s data model (C# classes) changes, ensuring that the database structure and the application code stay in sync.
Technology
Questions
03 Jan, 2025
Most Frequently asked entity-framework Interview Questions (2024)
Lazy loading in Entity Framework (EF) is a technique used to delay the loading of related data until it is specifically needed. It allows entities and their related navigation properties to be loaded from the database only when they are accessed for the first time, rather than being eagerly loaded along with the parent entity. This can help improve performance by reducing the amount of data retrieved initially, especially when the related data is not always required.
Technology
Questions
03 Jan, 2025
Most Frequently asked entity-framework Interview Questions
Entity Framework (EF)
is an open-source Object-Relational Mapping (ORM) framework for .NET applications, developed by Microsoft. It allows developers to interact with databases using .NET objects rather than SQL queries, making database manipulation more intuitive and integrated within the application code.
Technology
Questions
02 Jan, 2025
Most Frequently asked Interview Questions of hibernate
Hibernate Query Language (HQL)
is a
database-independent
query language used in Hibernate for querying the database. HQL is similar to
SQL
(Structured Query Language) but it operates on
objects
rather than database tables, and it is designed to work seamlessly with the object-oriented nature of Hibernate. HQL allows you to write queries that interact with Java objects (entities) rather than database tables and columns directly, which helps in maintaining a layer of abstraction between the application and the database.
Technology
Questions
02 Jan, 2025
Most Frequently asked hibernate Interview Questions (2024)
Hibernate Query Language (HQL)
is a
database-independent
query language used in Hibernate for querying the database. HQL is similar to
SQL
(Structured Query Language) but it operates on
objects
rather than database tables, and it is designed to work seamlessly with the object-oriented nature of Hibernate. HQL allows you to write queries that interact with Java objects (entities) rather than database tables and columns directly, which helps in maintaining a layer of abstraction between the application and the database.
Technology
Questions
02 Jan, 2025
Most Frequently asked hibernate Interview Questions and Answers
Hibernate Mapping
refers to the process of defining the relationship between Java objects (or entities) and database tables in Hibernate. Hibernate, as an Object-Relational Mapping (ORM) framework, allows developers to map Java classes to database tables and manage the data between them seamlessly. This process involves defining
how Java objects (entities)
are represented in the
database
and vice versa, which includes
relationships
,
primary keys
,
columns
, and other constraints.
Technology
Questions
02 Jan, 2025
Most Frequently asked hibernate Interview Questions
Hibernate
is an
Object-Relational Mapping (ORM)
framework for Java that simplifies database interactions by mapping Java objects to relational database tables. It eliminates the need for developers to write complex SQL code manually for common database operations like CRUD (Create, Read, Update, Delete). Hibernate automatically handles the conversion between Java objects and database records, making it easier to interact with relational databases in an object-oriented manner.