2 个仓库
Retrieving only a subset of defined fields for an entity to optimize memory usage.
Distinct from Partial Document Retrieval: Focuses on selecting specific columns of a relational entity rather than partial document retrieval in NoSQL.
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Doctrine ORM is a PHP object-relational mapper that connects application objects to relational database tables. It uses the data mapper and identity map patterns to decouple the in-memory object model from the database schema, allowing developers to manage data persistence without writing manual SQL. The project features a dedicated object-oriented query language and programmatic builder for retrieving data based on entities rather than tables. It implements a unit-of-work system to track object changes during a request and synchronize them via atomic transactions. The capability surface inc
Provides the ability to retrieve only specific fields of an object to reduce memory consumption.
FreeSql 是一个 .NET 对象关系映射器(ORM)和数据访问层,可将面向对象的代码转换为适用于多种关系型数据库提供程序的 SQL。它作为一个流畅的 SQL 查询构建器和数据库架构同步器,允许开发者将数据库表和索引结构与实体类定义保持一致。 该框架专门针对 .NET Native AOT 进行了优化,以确保更小的内存占用和更快的启动时间。它包含一个数据库流量管理器,通过读写分离、动态分表和基于租户的数据隔离来分配负载。 其广泛的功能包括使用特定于提供程序的批量复制机制实现高性能数据摄入,利用窗口函数和递归 CTE 进行高级查询,以及基于 AOP 的数据变更审计监控。该系统还提供用于自动迁移的架构管理工具,以及用于从数据库元数据生成实体类的开发实用程序。
Updates only modified properties of a database entity by comparing current values against an original state snapshot.