Open Source Object-Relational Mapping (ORM) Software

Object-Relational Mapping (ORM) Software

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Browse free open source Object-Relational Mapping (ORM) software and projects below. Use the toggles on the left to filter open source Object-Relational Mapping (ORM) software by OS, license, language, programming language, and project status.

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  • 1
    Hibernate

    Hibernate

    An object relational-mapping (ORM) library for Java

    Hibernate is an Object/Relational Mapper tool. It's very popular among Java applications and implements the Java Persistence API. Hibernate ORM enables developers to more easily write applications whose data outlives the application process. As an Object/Relational Mapping (ORM) framework, Hibernate is concerned with data persistence as it applies to relational databases (via JDBC).
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    Downloads: 691 This Week
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  • 2
    HIBERNATE

    HIBERNATE

    Hibernate's core object/relational mapping functionality

    Hibernate ORM is a library providing Object/Relational Mapping (ORM) support to applications, libraries, and frameworks. It also provides an implementation of the JPA specification, which is the standard Java specification for ORM. The build requires a Java 8 JDK as JAVA_HOME. You will need Git to obtain the source. Hibernate makes use of Jenkins for its CI needs. The project is built continuous on each push to the upstream repository. The Hibernate build defines several database testing "profiles" in databases.gradle. These profiles can be activated by name using the db build property which can be passed either as a JVM system prop (-D) or as a Gradle project property (-P). You don't have to install all databases locally to be able to test against them in case you have docker available. The script docker_db.sh allows you to start a pre-configured database which can be used for testing.
    Downloads: 25 This Week
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  • 3
    XML Editor/Validator/Designer with CAMV

    XML Editor/Validator/Designer with CAMV

    CAM XML Editor for XML+JSON+Hibernate+SQL Open-XDX sponsored by Oracle

    The CAM editor is the leading open source XML Editor/Validation/Schema toolset for rapidly building / deploying XML /JSON /Hibernate /SQL data /Forms applications. Visual WYSIWYG data design, rule entry wizards + drag & drop dictionary components. Will import, analyze / refactor from XML Schema / JSON. Oracle is a proud enterprise sponsor; with NIEM.gov support. Do SQL data import/map+ Open Data API delivery+ Hibernate JPA + UI Forms/Pencil Makes XSD schema (default, flatten, NIEM, & OASIS modes) + JAXB bindings; Mindmap FreeMind or UML models(XMI); XML unit test & live SQL data; HTML docs + spreadsheets (NIEM IEPDs). Canonical component dictionaries from schema sets, SQL, JSON, ERwin XSD, or spreadsheets. The XML CAM templates (OASIS standard) store the exchange structure, content model, code lists, DBMappings, SQL lookups+business rules (XPath). Java CAMV XML/JSON validation engine is a complete exchange test framework [XMLUnit, TEAM(Schematron)]. Java/Eclipse +Saxon/XSL
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    Downloads: 104 This Week
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  • 4
    Sequelize

    Sequelize

    A promise-based multi SQL dialect Node.js ORM

    Sequelize is a promise-based Node.js ORM for Postgres, MySQL, MariaDB, SQLite and Microsoft SQL Server. It features solid transaction support, relations, eager and lazy loading, read replication and more. Sequelize follows SEMVER. Supports Node v6 and above to use ES6 features. Sequelize v5 was released on March 13, 2019. Official TypeScript typings are now included. Sequelize can be used since the beginning in order to automate the creation of every table in your database. Models are the essence of Sequelize. A model is an abstraction that represents a table in your database. In Sequelize, it is a class that extends Model. The model tells Sequelize several things about the entity it represents, such as the name of the table in the database and which columns it has (and their data types).
    Downloads: 4 This Week
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  • 5
    Prisma

    Prisma

    Next-generation ORM for Node.js and TypeScript

    Prisma helps app developers build faster and make fewer errors with an open source ORM for PostgreSQL, MySQL and SQLite. Central to Prisma is the schema, a declarative way to define your app's data models and their relations that's human-readable. And you don't have to painstakingly create it from scratch if you already have a database - prisma introspect takes care of that. Prisma Client is a query builder that composes the way you think and gets auto-generated from the Prisma schema with types tailored to your app. We designed the API to be intuitive for both SQL veterans and people brand new to databases. Auto-completion, linting, formatting and more help Prisma developers in VSCode stay confident without distractions. Prisma Client puts extra emphasis on extensive type safety for more productive development in TypeScript. Prisma is a server-side library that helps your app read and write data to the database in an intuitive and safe way.
    Downloads: 3 This Week
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  • 6
    AutoMapper

    AutoMapper

    A convention-based object-object mapper in .NET

    A convention-based object-object mapper. 100% organic and gluten-free. Takes out all of the fuss of mapping one object to another. AutoMapper is a simple little library built to solve a deceptively complex problem, getting rid of code that mapped one object to another. This type of code is rather dreary and boring to write, so why not invent a tool to do it for us? First, install NuGet. Then, install AutoMapper from the package manager console. AutoMapper is an object-object mapper. Object-object mapping works by transforming an input object of one type into an output object of a different type. What makes AutoMapper interesting is that it provides some interesting conventions to take the dirty work out of figuring out how to map type A to type B. As long as type B follows AutoMapper’s established convention, almost zero configuration is needed to map two types.
    Downloads: 1 This Week
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  • 7
    Doctrine ORM

    Doctrine ORM

    Doctrine Object Relational Mapper

    Doctrine 2 is an object-relational mapper (ORM) for PHP 7.1+ that provides transparent persistence for PHP objects. It sits on top of a powerful database abstraction layer (DBAL). One of its key features is the option to write database queries in a proprietary object oriented SQL dialect called Doctrine Query Language (DQL), inspired by Hibernate's HQL. This provides developers with a powerful alternative to SQL that maintains flexibility without requiring unnecessary code duplication. As the term ORM already hints at, Doctrine ORM aims to simplify the translation between database rows and the PHP object model. The primary use case for Doctrine are therefore applications that utilize the Object-Oriented Programming Paradigm. For applications that do not primarily work with objects Doctrine ORM is not suited very well. Doctrine ORM requires a minimum of PHP 7.1. For greatly improved performance it is also recommended that you use APC with PHP.
    Downloads: 1 This Week
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  • 8
    EF Core

    EF Core

    Object-database mapper for .NET

    EF Core is a modern object-database mapper for .NET. It supports LINQ queries, change tracking, updates, and schema migrations. Entity Framework Core is a modern object-database mapper for .NET. It supports LINQ queries, change tracking, updates, and schema migrations. EF Core works with many databases, including SQL Database (on-premises and Azure), SQLite, MySQL, PostgreSQL, and Azure Cosmos DB. To install EF Core, you install the package for the EF Core database provider(s) you want to target. This tutorial uses SQLite because it runs on all platforms that .NET Core supports. This application intentionally keeps things simple for clarity. Connection strings should not be stored in the code for production applications. You may also want to split each C# class into its own file. Query and manage relational data in a .NET Core app with an Object-Relational Mapper (O/RM).
    Downloads: 1 This Week
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  • 9
    peewee

    peewee

    A small, expressive orm, which supports postgresql, mysql and sqlite

    Peewee is a simple and small ORM. It has few (but expressive) concepts, making it easy to learn and intuitive to use. Peewee will automatically infer the database table name from the name of the class. You can override the default name by specifying a table_name attribute in the inner “Meta” class (alongside the database attribute). To learn more about how Peewee generates table names, refer to the Table Names section. There are lots of field types suitable for storing various types of data. Peewee handles converting between pythonic values and those used by the database, so you can use Python types in your code without having to worry. The real strength of our database is in how it allows us to retrieve data through queries. Relational databases are excellent for making ad-hoc queries. Peewee provides a magical helper fn(), which can be used to call any SQL function.
    Downloads: 1 This Week
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    Tigerpaw One | Business Automation Software for SMBs

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  • 10
    LiteSQL is a codegenerator and C++ library that integrates C++ objects tightly to relational database and thus provides an object persistence layer. LiteSQL supports SQLite3, PostgreSQL, MySQL and oracle as backends.
    Downloads: 12 This Week
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  • 11

    SQLObject

    SQLObject is a Python ORM.

    SQLObject is an object-relational mapper for Python. It supports MySQL, PostgreSQL, SQLite, Firebird, MaxDB/SapDB, MS SQL and Sybase. It supports Python versions back to 2.7.
    Downloads: 6 This Week
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  • 12
    DataNucleus

    DataNucleus

    Java persistence using JDO, JPA or REST

    DataNucleus provides Java data persistence to a range of datastores using JDO/JPA/REST APIs. *** Note that code development is no longer on SourceForge (code on SourceForge is for versions up to 3.3.5 only) ***
    Downloads: 5 This Week
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  • 13
    lunaOrm - your free Orm for .net project

    lunaOrm - your free Orm for .net project

    lunaOrm - Datalayer Code Generator for Vb.Net and C#

    lunaORM is an ORM open source and freely downloadable automatic code generator to facilitate and standardize the writing of classes that read/edit/save data to database.
    Downloads: 7 This Week
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  • 14
    Habanero
    An Enterprise Application Framework for .Net that produces an agile application from the data layer through to the front-end. Free open source under the LGPL license, it includes ORM and UI generation to create one application for the desktop & web. Please note that the primary source repository is now at https://github.com/Chillisoft/habanero
    Downloads: 1 This Week
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  • 15
    Data/Document WF

    Data/Document WF

    Data/Document Work Flow application

    Data/Document Work Flow is a set of .NET C# libraries to build simple cross-platform information system: - DataWF.Common - collections, reflections, io and networks helpers - DataWF.Data - cross RDBMS ORM - DataWF.Gui - Xwt based desktop UI - DataWF.Data.Gui - Database desktop UI - DataWF.Module.Flow - Document work flow module - DataWF.Mudule.FlowGui - Configure, create, edit, send document throw the flow Sources: https://github.com/alexandrvslv/datawf
    Downloads: 2 This Week
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  • 16
    SPARQL to Object Oriented eNgine allows users to expose their traditional data sources (RDBMS, OODBMS, XML, LDAP, ecc) as RDF data, through a SPARQL endpoint.
    Downloads: 2 This Week
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  • 17
    Better SQL in java! Offering a seamless java class mapping and SQL-like domain-specific language implemented for number of commercial and open-source DBMS
    Downloads: 2 This Week
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  • 18

    CCM (C# Collections Mapper)

    The CCM is a mini ORM, working with the database and C# collections

    CCM is a solution for the data management layer in the combination of Sql Server with a C # application. In whole this is a strongly typed entity mapper projecting the application's business logics onto database tables using T-SQL stored procedures. CCM allows you to implement fairly complex data structures in your application, without bothering about difficult and tedious questions of data acquisition and conversion issue, allowing you to pay more attention to the develop of business logic and UI. There no need to worry about migrations, context, etc. At the same time, ORM completely relieves the developer from direct communicating with ADO - datasets, tables, rows, and other data aceess component, to track connections, commands or operate with adapters because ORM works at a higher level of data abstraction. At the same time you will be completely protected from memory leaks and free to create complexity application logic at the primary data level.
    Downloads: 1 This Week
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  • 19
    Criteria2JPQL API is an adaptation of the powerful Hibernate Criteria API to standard JPA API enabling the compatibility with any orm tool. Against the native SQL queries created by Hibernate Criteria, Criteria2JPQL outputs standard JPQL queries.
    Downloads: 1 This Week
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  • 20

    Android ORM Framework

    ORM Framework for Android to store data using an SQLite Database.

    Within this project, an orm framework for android is developed to store data by using an SQLite Database.
    Downloads: 0 This Week
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  • 21
    Ardent

    Ardent

    Self-validating, secure and smart models for Laravel's Eloquent ORM

    Self-validating, secure and smart models for Laravel's Eloquent ORM. Based on the Aware bundle for Laravel 3 by Colby Rabideau. Add laravelbook/ardent as a requirement to composer.json. You can also add the package using composer require laravelbook/ardent and later specifying the version you want (for now, dev-master is your best bet). The magic-dust-powered, wrist-friendly, one-stop solution to all your dreary input sanitization boilerplates! Puns aside, input validation functionality can quickly become tedious to write and maintain. Ardent deals away with these complexities by providing helpers for automating many repetitive tasks. Ardent is not just great for input validation, though, it will help you significantly reduce your Eloquent data model code. Ardent is particularly useful if you find yourself wearily writing very similar code time and again in multiple individual applications.
    Downloads: 0 This Week
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  • 22

    Artemis

    Cassandra "ORM" with hooks for Jersey integration if desired

    Using the new CQL3 driver by Datastax Artemis provides extremely easy to use "ORM" like functionality for Cassandra. It also contains hooks for integration into Jersey2 to enable rapid development of RESTful services, or even websites, if you enable JSP functionality for Jersey. If there is a demand, I could add a plugin to render views using things like Velocity, etc. See https://sourceforge.net/p/wicca/wiki/Home/ for more documentation
    Downloads: 0 This Week
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  • 23
    AutoDAO is a Generic DAO on steroids implementation for Java with Hibernate support, annotation-driven configuration, tight Spring Framework integration and zero persistence code required for most common query types.
    Downloads: 0 This Week
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  • 24
    Simple ORM intended to simplify mundane data access tasks for .Net developers.
    Downloads: 0 This Week
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  • 25
    Automated Business Logic

    Automated Business Logic

    Transaction logic engine for JPA/Hibernate

    ABL is a transaction logic engine: it allows you to declare complex, multi-table transaction logic for your persistent objects, using simple declarative annotations. ABL operates as a HIbernate/JPA event listener to eliminate recoding and automate integrity.
    Downloads: 0 This Week
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Guide to Open Source Object-Relational Mapping (ORM) Software

Open source object-relational mapping (ORM) software acts as an intermediary between data stored in database management systems and the applications that use them. This software provides a way to efficiently map objects in programming languages to database structures, while preserving their properties. It also provides programmers with an interface for interacting with databases without needing any knowledge of database query language syntax. ORM software is typically written in a scripting language such as Python, PHP, or Java and enables database access using Active Record, Data Mapper, and Unit of Work design patterns.

One advantage of using open source ORM software is that it can greatly reduce the amount of time spent writing code for complex queries. Additionally, developers no longer need to manually write SQL queries when interacting with databases; instead they can use higher-level abstractions provided by the ORM APIs to define data modeling requirements and reduce the size of the codebase required for application development or maintenance tasks. Using an ORM usually increases productivity and helps enforce uniform coding standards across development teams because most ORMs are designed around common web application frameworks such as Rails or Django. Furthermore, since the code powering ORMs is often open sourced it allows developers to easily collaborate on projects together or create new libraries that extend existing functionality beyond what’s available out-of-the box.

Overall, open source object-relational mapping (ORM) software provides many benefits like increased speed in coding complex queries, easier collaboration among different development teams working on the same project, and simplified access to databases for developers who may not have expertise in SQL query language syntaxes.

Open Source Object-Relational Mapping (ORM) Software Features

  • Automated Database Schemas: ORM software automates the process of creating database schemas by mapping object-oriented classes to relational database tables. This makes it easier for developers to quickly create databases without having to manually define all database information and fields in the SQL language.
  • Query Building: ORM software allows developers to quickly build queries using an object-oriented programming (OOP) syntax, reducing the need for manual SQL coding. This makes it easy for developers to query or update database records with minimal effort and time.
  • Model Relationships: ORM software can easily model complex relationships between entities in an object-oriented environment, such as one-to-one, one-to-many, or many-to-many relationships. This helps keep data organized and reduces the amount of manual code that needs to be written when working with relational databases.
  • Data Validation: ORM software provides built-in data validation features which allow users to validate user input before submitting any queries or updates so that only valid and consistent data is saved into the database. This ensures accuracy of information stored in the database and prevents redundant or invalid entries from being made accidentally by users.
  • Caching Mechanisms: ORM software often includes caching mechanisms which help minimize the number of times a program needs to connect to the underlying database while still allowing applications access to frequently used data quickly, resulting in improved performance overall.

What Are the Different Types of Open Source Object-Relational Mapping (ORM) Software?

  • Hibernate: Hibernate is an open source Java-based ORM which enables developers to map plain old Java objects (POJO) to relational tables. It is popular for its ability to access multiple relational databases with a single set of code.
  • Kodo: Kodo is an open source Java-based ORM which provides object persistence and query technology for enterprise applications. It is designed to allow developers to store, retrieve, manipulate and manage data in a database system.
  • iBATIS/MyBatis: iBATIS (now known as MyBatis) is an open source framework that maps accessed objects into SQL queries, enabling developers to quickly and easily create database-independent applications. MyBatis has been widely adopted due to its powerful mapping capabilities, support of advanced features such as type handlers, dynamic SQL and pagination, and easy integration into other frameworks such as Spring Framework or Grails.
  • JDBC: JDBC (Java Database Connectivity) is the industry standard for connecting applications written in the Java language with data sources such as relational databases and spreadsheets. JDBC provides Object Relational Mapping technologies that enable developers to store data from any application without having any knowledge about the underlying database structure or SQL syntax used by the data source itself.
  • JPA/EclipseLink: The Java Persistence API (JPA) provides a common way for persistent entities i.e., classes that are connected with specific instances of a particular type of data stored in a database using annotations or metadata from class fields throughout the application’s codebase while EclipseLink adds additional features above those provided by JPA including caching provider services, extended object-oriented query feature support, change tracking algorithms within session beans, versioning strategies and much more.

Benefits of Open Source Object-Relational Mapping (ORM) Software

  1. Increased Productivity: ORM tools provide developers with the ability to quickly and easily bridge the gap between their code and a relational database, allowing them to speed up the development process.
  2. Reduced Maintenance Costs: By abstracting away many of the complexities associated with relational databases, ORM software significantly reduces the amount of time needed for maintenance tasks. This leads to lower long-term costs and fewer headaches for developers.
  3. Safer Code: ORM software offers a better way of keeping your code safe from SQL injection attacks. By creating queries programmatically and relying on parameterized stored procedures, it’s much easier to prevent malicious code from being injected into your application’s database.
  4. Improved Performance: Many ORMs offer features such as object caching and query optimization that can drastically improve application performance without requiring any manual tweaking from developers.
  5. Easier Customization: Because most ORMs are written in an open source environment, they can be easily customized and adjusted according to specific needs without having to rewrite large amounts of code. This makes it simpler for developers to add new features or apply customizations as required.

Who Uses Open Source Object-Relational Mapping (ORM) Software?

  • Web Developers: Those who develop websites and web applications can use ORM software to quickly create databases and maintain relationships between objects.
  • Mobile Application Developers: Mobile application developers often need to store, access, and update data. They can use ORM software to organize the process, making it easier for them to develop their applications quickly.
  • Small Businesses: ORMs are cost-effective solutions for small businesses that need database management but don’t have enough resources for buying proprietary database solutions.
  • Data Scientists: Data scientists often need sophisticated database management features such as complex queries, data integration from multiple sources and dynamic object mapping capabilities, all of which can be easily achieved with an ORM tool.
  • Database Administrators (DBAs): An ORM offers an easy way for database administrators to write code and query results using simple classes instead of tables. This makes it easier for them to manage large databases without having to manually write SQL scripts on an ad hoc basis.
  • Software Engineers: Software engineers who specialize in creating distributed systems like microservices can benefit from the scalability offered by many popular ORMs such as Entity Framework or Hibernate OGM.

How Much Does Open Source Object-Relational Mapping (ORM) Software Cost?

Open source object-relational mapping (ORM) software typically does not cost anything, as it is open source. This means that the creators have chosen to make the software available to everyone without charging a fee. The ORM software can be downloaded and used for free by anyone who wishes to do so.

By using open source ORM software, developers gain access to powerful tools which they may use to efficiently and effectively design their databases. These tools include features such as automated database generation, auto-mapping of objects and relations between them, API integration with other languages or databases, many-to-many relationships for complex data sets, and more. All of these features help developers create better databases in less time than traditional methods.

The openness of this type of software also allows developers from all around the world to collaborate on projects with different technologies which support interoperability among them. This helps ensure that any changes made are shared across multiple platforms without extra costs or delays associated with proprietary solutions. Additionally, members of online developer communities often provide feedback on how to improve ORMs in order to benefit everyone involved in these collaboration efforts.

For those looking for enterprise level options at a cost but still benefit from the benefits associated with open source ORM solutions there are various commercial vendors that offer both free and paid packages with enhanced features compared to freely available ones including improved scalability, increased security measures, advanced automation abilities etc.

What Does Open Source Object-Relational Mapping (ORM) Software Integrate With?

Open source object-relational mapping (ORM) software is used to map objects from a programming language to relational database systems. This type of software can integrate with many other types of software, including web frameworks and query languages. ORM can be integrated with web frameworks such as Java Server Pages (JSP), Ruby on Rails or Django by providing the developer with the ability to access data in a relational database through their code. It also supports integration with query languages such as SQL, allowing developers to use existing queries for their applications. Finally, it provides an interface for popular development tools like Eclipse, Visual Studio and IntelliJ which makes it easier to work with databases within these tools. By providing an easily accessible interface between various programming elements and databases, ORM allows developers to create powerful data-driven applications while minimizing the effort required on their part.

Recent Trends Related to Open Source Object-Relational Mapping (ORM) Software

  1. Increased Adoption: More and more businesses are turning to open source ORM software to manage their databases because of its cost-effectiveness, scalability, and reliability.
  2. Improved Security: Open source ORM software is designed with robust security protocols to protect data from attackers.
  3. Support for Popular Databases: Open source ORM software supports popular database systems such as SQL Server, Oracle, PostgreSQL, MongoDB, and Hadoop.
  4. Increased Flexibility: Open source ORM software is highly customizable, allowing developers to tailor their applications to fit their specific needs.
  5. Reduced Time-to-Market: Open source ORM software reduces the time it takes to develop applications by removing many of the tedious tasks associated with database management.
  6. Faster Development Cycles: With open source ORM software, development cycles are faster due to the ability to quickly modify code and make changes on the fly.
  7. Automated Testing: Many open source ORM tools include automated testing capabilities, which reduces the amount of manual testing needed for applications.
  8. Greater Compatibility Across Platforms: Open source ORM software is designed to be platform-agnostic and can be used on multiple operating systems such as Windows, macOS, Linux, and Android.

Getting Started With Open Source Object-Relational Mapping (ORM) Software

Using open source object-relational mapping (ORM) software is a great way to save time and increase productivity when developing a web application or managing databases. The following steps will help users get started with using ORM software explain how users can get started with using open source object-relational mapping (ORM) software. Write in American English. Make your response long.

Getting started with open source object-relational mapping (ORM) software is easy and can be done in just a few simple steps.

The first step is to decide on which ORM framework you would like to use. Popular open source ORM frameworks include Entity Framework, NHibernate, and LinqToSQL. Each of these frameworks has its own set of pros and cons so it’s important to consider your application’s specific requirements when selecting an ORM framework. Once you’ve chosen a framework, you can download the necessary libraries from their website or through your preferred package manager.

The next step is to create or import your database schema into the ORM framework of your choice. This can be done by manually creating entities for each table in the database or by importing them from existing SQL scripts using an appropriate tool provided by the chosen ORM framework. Another option could be to use a visual designer where tables are represented as diagrams allowing users to drag and drop fields, indexes etc., making it easier to create complex schemas without having too much knowledge about databases.