How does Chloe ORM compare to Entity Framework in performance?

Chloe is designed as a lightweight ORM, often offering better performance for simple to moderate queries due to less overhead and direct SQL translation. However, Entity Framework has more features like migrations and better tooling integration, which might suit complex enterprise applications better.

How to do async queries with Chloe ORM?

The README does not show async methods, suggesting async support might be limited or undocumented. Developers should check the wiki or source code for async capabilities, or use synchronous methods which could impact scalability in high-load scenarios.

Does Chloe support stored procedures?

While the README demonstrates raw SQL execution, specific support for stored procedures isn't detailed. You can likely call stored procedures using raw SQL queries with parameters, but built-in mapping or convenience methods might be lacking compared to other ORMs like Entity Framework.

Chloe ORM transaction management example

Transaction management isn't explicitly shown in the README snippets. For transactions, you might need to use the underlying ADO.NET connections or check the documentation on the wiki for guidance on implementing transactions within Chloe's context.

How to configure connection strings in Chloe?

Connection strings are passed when creating a DbContext, as shown in examples like 'new MsSqlContext(DbHelper.ConnectionString)'. You need to manage connection strings externally, such as in app settings, similar to other .NET data access methods.

Chloe vs Dapper for .NET applications

Chloe offers a LINQ-style query interface similar to Entity Framework, making it ideal for developers preferring lambda expressions and type-safe queries. Dapper is a micro-ORM focused on raw SQL and maximum performance, better suited for teams comfortable with writing SQL directly and needing minimal overhead.

Open-Awesome

Chloe

MITC#v4.19.0

A lightweight, high-performance .NET ORM library with LINQ-style querying for multiple databases.

Visit Website GitHub

1.5k stars450 forks0 contributors

What is Chloe?

Chloe is a lightweight and high-performance Object/Relational Mapping (ORM) library for .NET. It allows developers to interact with databases using a LINQ-style query interface, supporting operations like joins, grouping, aggregation, and CRUD through lambda expressions. It solves the problem of verbose and complex database access code by providing an intuitive, type-safe API.

Target Audience

.NET developers building data-driven applications who need a simple, performant ORM with multi-database support and LINQ-like querying.

Value Proposition

Developers choose Chloe for its lightweight design, high performance, and familiar LINQ-style syntax, which reduces learning curves and boilerplate compared to heavier ORMs like Entity Framework, while supporting a wide range of databases.

Overview

A lightweight and high-performance Object/Relational Mapping(ORM) library for .NET --C#

Use Cases

Best For

Building .NET applications with SQL Server, MySQL, or PostgreSQL backends
Projects requiring LINQ-style database queries with lambda expressions
Applications needing lightweight ORM performance without Entity Framework overhead
Scenarios involving complex joins, group queries, or aggregate operations
Multi-database projects where support for SQLite, Oracle, or niche databases is needed
Developers preferring type-safe, fluent APIs for database interactions

Not Ideal For

Projects requiring built-in database migration tools or code-first schema generation
Applications that heavily rely on asynchronous database operations for high scalability
Teams needing a vast ecosystem of third-party plugins or extensive community-driven extensions
Enterprise systems with complex requirements like distributed transactions or comprehensive auditing out-of-the-box

Pros & Cons

Pros

Multi-Database Compatibility

Supports seven databases including SQL Server, MySQL, and PostgreSQL via dedicated NuGet packages, as listed in the README installation commands, making it versatile for diverse backends.

LINQ-Style Query Interface

Allows writing database queries using lambda expressions similar to LINQ, with examples showing joins, grouping, and complex operations that translate directly to SQL, reducing boilerplate code.

Efficient CRUD Operations

Provides batch updates and deletes, and change tracking to optimize updates by modifying only altered columns, demonstrated in the update examples with 'TrackEntity'.

Raw SQL Flexibility

Enables executing raw SQL queries with parameterized support, offering an escape hatch for complex queries not covered by LINQ-style syntax, as shown in the 'SqlQuery' examples.

Cons

Missing Decimal Parse Support

The README explicitly notes that 'Decimal.Parse(string s)' is not supported due to unknown precision and scale, limiting certain data type operations and forcing workarounds.

External Documentation Dependency

Documentation is hosted on a separate wiki, which may be less maintained, harder to navigate, or incomplete compared to integrated documentation in more mature ORMs.

No Async Operations Shown

The code examples lack asynchronous methods, which are standard in modern .NET for performance and scalability; this omission suggests limited async support or poor documentation.

Database-Specific Package Setup

Requires installing different NuGet packages for each database type, adding complexity and potential dependency management issues when switching between databases or managing multiple connections.

Open Source Alternative To

Chloe is an open-source alternative to the following products:

Entity Framework

Entity Framework is an object-relational mapper (ORM) for .NET that enables developers to work with databases using .NET objects.

Frequently Asked Questions

Related Projects

Entity Framework Core

EF Core is a modern object-database mapper for .NET. It supports LINQ queries, change tracking, updates, and schema migrations.

Stars14,621

Forks3,376

Last commit2 days ago

FreeSql

.NET aot orm, VB.NET/C# orm, Mysql/PostgreSQL/SqlServer/Oracle orm, Sqlite/Firebird/Clickhouse/DuckDB orm, 达梦/金仓/虚谷/翰高/高斯 orm, 神通 orm, 南大通用 orm, 国产 orm, TDengine orm, QuestDB orm, MsAccess orm.

Stars4,379

Forks904

Last commit10 days ago

EFCore.BulkExtensions

Entity Framework EF Core efcore Bulk Batch Extensions with BulkCopy in .Net for Insert Update Delete Read (CRUD), Truncate and SaveChanges operations on SQL Server, PostgreSQL, MySQL, SQLite, Oracle

Stars3,981

Forks630

Last commit1 month ago

querybuilder

SQL query builder, written in c#, helps you build complex queries easily, supports SqlServer, MySql, PostgreSql, Oracle, Sqlite and Firebird

Stars3,350

Forks524

Last commit14 days ago

Community-curated · Updated weekly · 100% open source

Found a gem we're missing?

Open-Awesome is built by the community, for the community. Submit a project, suggest an awesome list, or help improve the catalog on GitHub.

Submit a project Star on GitHub