EntityFramework

EntityFramework is a .NET object-relational mapper that translates application objects into database tables and rows. It functions as a query engine that converts high-level expressions into optimized SQL commands for data retrieval.

The project provides a mechanism for monitoring modifications to loaded objects to synchronize application state with the database. It also includes a system for synchronizing database structures with data models using versioned migration scripts.

The framework supports multi-backend database integration through a plugin system, allowing a single application to connect to various storage engines. It enables data manipulation using a typed language to perform database lookups and filters.

Features

Object-Relational Mapping - Provides a full object-relational mapping system to translate application objects into database tables and rows.
Database Schema Migrations - Tracks database structure changes via timestamped code files that apply incremental updates to the physical schema.
Expression-Based Data Querying - Retrieves records from a database using high-level query expressions that convert automatically into optimized commands.
LINQ Expression Translators - Provides a recursive visitor pattern to translate high-level LINQ expressions into optimized database-specific SQL commands.
Object-Relational Mappers - Functions as a .NET object-relational mapper that simplifies database interactions by mapping data to objects.
Object Mappings - Maps application classes to database tables using metadata derived from attributes or fluent configurations.
Database Provider Plugins - Supports multi-backend database integration through a plugin system to ensure compatibility across different storage engines.
Identity Maps - Implements an identity map to ensure each database record is represented by a single object instance per session.
Pluggable Database Providers - Connects a single application to various storage engines through a plugin system to ensure provider compatibility.
State Change Tracking - Monitors entity state by comparing current object values against cached original snapshots to determine necessary database updates.
Provider Abstractions - Employs a provider-based abstraction to translate generic operations into dialect-specific commands for different storage engines.
Object Relational Mapping - Standard data access framework with LINQ and POCO support.

Istoric stele

aspnetEntityFramework

Name: aspnet/entityframework
Author: aspnet

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14,690 stele3,386 fork-uriC#MIT4 vizualizărilearn.microsoft.com/ef

EntityFramework

Features

Object-Relational Mapping - Provides a full object-relational mapping system to translate application objects into database tables and rows.
Database Schema Migrations - Tracks database structure changes via timestamped code files that apply incremental updates to the physical schema.
Expression-Based Data Querying - Retrieves records from a database using high-level query expressions that convert automatically into optimized commands.
LINQ Expression Translators - Provides a recursive visitor pattern to translate high-level LINQ expressions into optimized database-specific SQL commands.
Object-Relational Mappers - Functions as a .NET object-relational mapper that simplifies database interactions by mapping data to objects.
Object Mappings - Maps application classes to database tables using metadata derived from attributes or fluent configurations.
Database Provider Plugins - Supports multi-backend database integration through a plugin system to ensure compatibility across different storage engines.
Identity Maps - Implements an identity map to ensure each database record is represented by a single object instance per session.
Pluggable Database Providers - Connects a single application to various storage engines through a plugin system to ensure provider compatibility.
State Change Tracking - Monitors entity state by comparing current object values against cached original snapshots to determine necessary database updates.
Provider Abstractions - Employs a provider-based abstraction to translate generic operations into dialect-specific commands for different storage engines.
Object Relational Mapping - Standard data access framework with LINQ and POCO support.

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Întrebări frecvente

Ce face aspnet/entityframework?

Care sunt principalele funcționalități ale aspnet/entityframework?

Principalele funcționalități ale aspnet/entityframework sunt: Object-Relational Mapping, Database Schema Migrations, Expression-Based Data Querying, LINQ Expression Translators, Object-Relational Mappers, Object Mappings, Database Provider Plugins, Identity Maps.

Care sunt câteva alternative open-source pentru aspnet/entityframework?

Alternativele open-source pentru aspnet/entityframework includ: doctrine/orm — Doctrine ORM is a PHP object-relational mapper that connects application objects to relational database tables. It… dotnet/efcore — Entity Framework Core is an object-relational mapper that enables developers to interact with database systems using… sqlalchemy/sqlalchemy — SQLAlchemy is a comprehensive Python SQL toolkit and object-relational mapper that provides a full suite of tools for… mikro-orm/mikro-orm — Mikro-ORM is a TypeScript-based object-relational mapping system that provides a unified persistence layer for Node.js… pardom-zz/activeandroid — ActiveAndroid is an object-relational mapper and data persistence library for Android. It serves as a high-level… coleifer/peewee — Peewee is a SQL object-relational mapper and query builder that provides an object-oriented interface for mapping…