Propel is an open-source Object-Relational Mapping (ORM) for PHP5. It allows you to access your database using a set of objects, providing a simple API for storing and retrieving data. Propel uses PDO as an abstraction layer, and code generation to remove the burden of runtime introspection. Therefore Propel is fast. Propel implements all the key concepts of mature ORM layers: the ActiveRecord pattern, validators, behaviors, table inheritance, reverse engineering an existing database, nested sets, nested transactions, lazy loading, LOB, etc. Propel supports MySQL, PostgreSQL, SQLite, MSSQL, and Oracle.

Propel is an open-source Object-Relational Mapping (ORM) for PHP5. It allows you to access your database using a set of objects, providing a simple API for storing and retrieving data. Propel uses PDO as an abstraction layer, and code generation to remove the burden of runtime introspection. Therefore Propel is fast.

Propel - smart easy object persistance in PHP

Sequelize is a promise-based Node.js ORM for Postgres, MySQL, SQLite and Microsoft SQL Server. It features solid transaction support, relations, read replication and more.

Sequelize - An easy-to-use multi SQL dialect ORM for Node.js

MikroORM is a TypeScript ORM for Node.js based on Data Mapper, Unit of work and Identity Map patterns. It supports MongoDB, MySQL, MariaDB, PostgreSQL and SQLite databases. Heavily inspired by Doctrine and Nextras ORM.
 
It allows handling transactions automatically. When you call em.flush() all computed changes are wrapped inside a database transaction. It uses source code analysis so you do not have to repeat yourself when defining entities. Simply define correct TypeScript types and you are good to go.
 
Its features include:
<ul>
<li>Clean and Simple Entity Definition</li>
<li>Identity Map</li>
<li>Entity References</li>
<li>Using Entity Constructors</li>
<li>Modelling Relationships</li>
<li>Collections</li>
<li>Unit of Work</li>
<li>Transactions</li>
<li>Cascading persist and remove</li>
<li>Composite and Foreign Keys as Primary Key</li>
<li>Filters</li>
<li>Using QueryBuilder</li>
<li>Preloading Deeply Nested Structures via populate</li>
<li>Property Validation</li>
<li>Lifecycle Hooks</li>
<li>Vanilla JS Support</li>
<li>Schema Generator</li>
<li>Entity Generator</li>
</ul>

MikroORM is a TypeScript ORM for Node.js based on Data Mapper, Unit of work and Identity Map patterns. It supports MongoDB, MySQL, MariaDB, PostgreSQL and SQLite databases. Heavily inspired by Doctrine and Nextras ORM.

MikroORM - TypeScript ORM for Node

SQLAlchemy is the Python SQL toolkit and Object Relational Mapper that gives application developers the full power and flexibility of SQL. It provides a full suite of well known enterprise-level persistence patterns, designed for efficient and high-performing database access, adapted into a simple and Pythonic domain language.

SQLAlchemy

TypeORM is an ORM that can run in NodeJS, Browser, Cordova, PhoneGap and Ionic platforms and can be used with TypeScript and JavaScript (ES5, ES6, ES7). Its goal to always support latest JavaScript features and provide features that help you to develop any kind of applications that use databases - from small applications with a few tables to large scale enterprise applications with multiple databases.
 
TypeORM supports both Active Record and Data Mapper patterns, unlike all other JavaScript ORMs currently exist, which means you can write high quality, loosely coupled, scalable, maintainable applications the most productive way.

TypeORM is an ORM that can run in NodeJS, Browser, Cordova, PhoneGap and Ionic platforms and can be used with TypeScript and JavaScript (ES5, ES6, ES7). Its goal to always support latest JavaScript features and provide features that help you to develop any kind of applications that use databases - from small applications with a few tables to large scale enterprise applications with multiple databases.

Typeorm - Amazing ORM for TypeScript and JavaScript (ES7, ES6, ES5)

MongoDB object modeling designed to work in an asynchronous environment. It provides a straight-forward, schema-based solution to modeling your application data and includes built-in type casting, validation, query building, business logic hooks and more, out of the box.

Mongoose - Elegant MongoDB object modeling for Node.js

Objection.js is an ORM for Node.js that aims to stay out of your way and make it as easy as possible to use the full power of SQL and the underlying database engine while keeping magic to a minimum.Objection.js is built on an SQL query builder called knex. All databases supported by knex are supported by objection.js. SQLite3, Postgres and MySQL are thoroughly tested.

Objection.js - An SQL-friendly ORM for Node.js

Bookshelf is a JavaScript ORM for Node.js, built on the Knex SQL query builder. Featuring both promise based and traditional callback interfaces, providing transaction support, eager/nested-eager relation loading, polymorphic associations, and support for one-to-one, one-to-many, and many-to-many relations. It is designed to work well with PostgreSQL, MySQL, and SQLite3.
 
Bookshelf aims to provide a simple library for common tasks when querying databases in JavaScript, and forming relations between these objects, taking a lot of ideas from the the Data Mapper Pattern.

 Bookshelf is a JavaScript ORM for Node.js, built on the Knex SQL query builder. Featuring both promise based and traditional callback interfaces, providing transaction support, eager/nested-eager relation loading, polymorphic associations, and support for one-to-one, one-to-many, and many-to-many relations. It is designed to work well with PostgreSQL, MySQL, and SQLite3.

Bookshelf - A simple Node.js ORM for PostgreSQL, MySQL and SQLite3 built on top of Knex.js

Knex.js is a "batteries included" SQL query builder for Postgres, MSSQL, MySQL, MariaDB, SQLite3, Oracle, and Amazon Redshift designed to be flexible, portable, and fun to use. It features both traditional node style callbacks as well as a promise interface for cleaner async flow control, a stream interface, full featured query and schema builders, transaction support (with savepoints), connection pooling and standardized responses between different query clients and dialects.

knex.js - A SQL query builder that is flexible, portable, and fun to use

The Qcodo Development Framework is an open-source PHP web application framework which builds an Object Relational Model (ORM), CRUD (Create, Retrieve, Update, Delete) UI pages, and AJAX hooks from an existing data model. It additionally includes a tightly-integrated HTML and JavaScript form toolkit which interfaces directly with the generated entities. It is a robust, comprehensive framework which can be utilized by small and large Web applications alike. The framework consists of three main components: the Code Generator, QForms (OOP generated stateful Ajax- or server-processed webform), QQuery (OOP based SQL Query builder) -- all of which can be used independently of each other. The Code Generator parses an existing Relational Database structure, and builds an ORM, as well as several remote interfaces (SOAP, AJAX) to the ORM. The ORM in Qcodo can be extended to provide user-maintained functionality (via object subclassing). QForms is a ASP.NET-inspired templating engine in which each form element is an object exposing its functionality and state via methods and attributes. Delo.si, the official website of <A HREF="http://www.delo.si/" target="_blank">Delo</A>, the major daily newspaper of Slovenia.

The Qcodo Development Framework is an open-source PHP web application framework which builds an Object Relational Model (ORM), CRUD (Create, Retrieve, Update, Delete) UI pages, and AJAX hooks from an existing data model. It additionally includes a tightly-integrated HTML and JavaScript form toolkit which interfaces directly with the generated entities. It is a robust, comprehensive framework which can be utilized by small and large Web applications alike.

Qcodo - Code Less Do More

Waterline is a new kind of storage and retrieval engine. 
It provides a uniform API for accessing stuff from different kinds of databases, protocols, and 3rd party APIs. That means you write the same code to get and store things like users, whether they live in Redis, mySQL, LDAP, MongoDB, or Postgres.
 
Waterline strives to inherit the best parts of ORMs like ActiveRecord, Hibernate, and Mongoose, but with a fresh perspective and emphasis on modularity, testability, and consistency across adapters.

Waterline is a new kind of storage and retrieval engine. 
It provides a uniform API for accessing stuff from different kinds of databases, protocols, and 3rd party APIs. That means you write the same code to get and store things like users, whether they live in Redis, mySQL, LDAP, MongoDB, or Postgres.


Waterline - An adapter based ORM for use with Node.js and the Sails.js Framework

Business Logic Toolkit is a set of components to simplify .NET application development. BLToolkit is provided as source code that you can use "as is" or customize for your applications. It is written in C# and compatible with .NET Framework 3.5 and 4.0. Source code location: <A HREF="http://code.google.com/p/bl-toolkit/" target="_blank">http://code.google.com/p/bl-toolkit/</A>

Business Logic Toolkit is a set of components to simplify .NET application development. BLToolkit is provided as source code that you can use "as is" or customize for your applications. It is written in C# and compatible with .NET Framework 3.5 and 4.0.

BL-Toolkit - Business Logic Toolkit for .NET

JugglingDB is cross-db ORM for nodejs, providing common interface to access most popular database formats. Currently supported are: mysql, sqlite3, postgres, mongodb, redis and js-memory-storage (yep, self-written engine for test-usage only). You can add your favorite database adapter, checkout one of the existing adapters to learn how. 
Jugglingdb also works on client-side (using WebService and Memory adapters), which allows to write rich client-side apps talking to server using JSON API.

JugglingDB is cross-db ORM for nodejs, providing common interface to access most popular database formats. Currently supported are: mysql, sqlite3, postgres, mongodb, redis and js-memory-storage (yep, self-written engine for test-usage only). You can add your favorite database adapter, checkout one of the existing adapters to learn how.

JugglingDB - Multi-database ORM in NodeJS

PHP's EASY MVC Build light-weight lightning-fast PhP applications with Phiber Framework. 

Phiber Framework - Build light-weight lightning-fast PhP applications with Phiber

The main strength of Vici CoolStorage is the ease of use. Most ORM tools still require a lot of unneeded code to accomplish basic data persistence tasks, but Vici CoolStorage is designed to relieve the programmer from these tedious and error-prone tasks, making it very intuitive to use.
<ul>
	<li>Supports SQL Server 2000/2005, MySQL, SQLite, MS Access and VistaDB. Other custom providers can be added.</li>
	<li>Full support for MonoTouch (using SQLite)</li>
	<li>Session-less and context-free database access</li>
	<li>Any existing relational data model can be mapped to CoolStorage objects with minimal effort</li>
	<li>No code generator required. Mapping is done by creating simple classes.</li>
	<li>All relation types are supported: One-To-Many, Many-To-One and Many-To-Many</li>
	<li>Completely typed object model (no type casts required)</li>
	<li>Dirty tracking on the column level. Only changed fields are persisted to the database</li>
	<li>Full support for transactions, including ##TransactionScope##</li>
	<li>Nullable columns can be mapped to nullable fields or to a default value</li>
	<li>Delayed (lazy) loading of data to minimize database access. Configurable per field.</li>
	<li>Selective or automatic prefetching of all relation types for improved query performance</li>
	<li>Powerful and intuitive database-independent object query language</li>
	<li>Flexible event mechanism to intercept any event</li>
	<li>Identity (auto-increment) keys or sequences are supported for all database types</li>
	<li>Support for server and client generated Guid keys</li>
	<li>Objects can be mapped to different databases, even across object relations</li>
	<li>Paging of object collections (at server level)</li>
	<li>Extensive support for retrieving aggregate values on collections (count, sum, average, ...)</li>
	<li>Collections implement IBindingList so they can be used by controls (grids) as a data source</li>
	<li>Underlying database engine uses optimized and parameterized SQL queries. SQL injection is impossible</li>
	<li>Built specifically for .NET 2.0 and up, taking full advantage of generics and nullable types</li>
	<li>Raw SQL and/or stored procedures can be called on the underlying database without the need for a separate database connection</li>
	<li>Small footprint (less than 250 KB, including Vici Core)</li>
</ul>

The main strength of Vici CoolStorage is the ease of use. Most ORM tools still require a lot of unneeded code to accomplish basic data persistence tasks, but Vici CoolStorage is designed to relieve the programmer from these tedious and error-prone tasks, making it very intuitive to use.

Coolstorage - ORM library for .NET

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