dORM is a PHP 5 ORM (object relational mapper) library that seamlessly loads, saves and deletes PHP objects from and to a relational database. dORM requires a small XML file that maps classes to their respective database tables. currently, only MySQL was tested. Its feature include

 <ul>
 <li>Simple of use</li>
 <li>Supports multiple data types</li>
 <li>Supports multiple relationships</li>
 <li>No code generation</li>
 <li>No class extending</li>
 <li>No naming convention</li>
 <li>No directory structure</li>
 <li>No modification of your classes</li>
 <li>No modification of your database</li>
</ul>

dORM is a PHP 5 ORM (object relational mapper) library that seamlessly loads, saves and deletes PHP objects from and to a relational database. dORM requires a small XML file that maps classes to their respective database tables. currently, only MySQL was tested.

dORM - Automate SQL. Focus on business logic

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

Cayenne is a Java object relational mapping (ORM) framework. Cayenne seamlessly binds one or more database schemas directly to Java objects, managing atomic commit and rollbacks, SQL generation, joins, sequences, and more. With Cayenne's Remote Object Persistence, those Java objects can even be persisted out to clients via Web Services. 
 
Cayenne supports numerous other features, including caching, a complete object query syntax, relationship pre-fetching, on-demand object and relationship faulting, object inheritance, database auto-detection, and generic persisted objects.

Cayenne is a Java object relational mapping (ORM) framework. Cayenne seamlessly binds one or more database schemas directly to Java objects, managing atomic commit and rollbacks, SQL generation, joins, sequences, and more. With Cayenne's Remote Object Persistence, those Java objects can even be persisted out to clients via Web Services. 

Apache Cayenne - User-friendly Java ORM with tools

Object Relational Mapping Lite (ORM Lite) provides some simple, lightweight functionality for persisting Java objects to SQL databases while avoiding the complexity and overhead of more standard ORM packages. 

OrmLite - A lightweight ORM for Java

Apache OpenJPA is a Java persistence project at The Apache Software Foundation that can be used as a stand-alone POJO persistence layer or integrated into any Java EE compliant container and many other lightweight frameworks, such as Tomcat and Spring. 

Apache OpenJPA - Java Persistence API Implementation

pdoMap is a PHP ORM (object-relational mapping) framework. The main aim of this project is to provide to PHP developers a RAD framework and a new way of dealing with databases. Its features include
 <ul>
<li>Focus on database design by managing structure in XML</li>
<li>Mapping database tables with automatically generated classes from XML mapping files</li>
<li>Provides a RAD environment that allows to write queries in an XML syntax</li>
<li>Provides a programmatic SQL language compatible with all database engines</li>
<li>Extensible field types (by default&#160;: primary / foreign / char / text / boolean / int / float / date)</li>
<li>Provides deployment procedures and functionalities which create database and tables (including joins)</li>
<li>Creates a service oriented classes by overriding tables adapters.</li>
<li>Uses oriented event crud which enables interaction between the entities and advanced database logic.</li>
</ul>

pdoMap is a PHP ORM (object-relational mapping) framework. The main aim of this project is to provide to PHP developers a RAD framework and a new way of dealing with databases.

pdoMap - ORM for PHP

The DatabaseObjects library is an open source tool for mapping relation database systems (MySQL, SQL Server, Microsoft Access) to an object-oriented structure. The library can simplify the development and maintenance of small and large systems by providing a mechanism to consolidate business logic, maintain data integrity, increasing productivity and minimise errors. The DatabaseObjects library contains a large set of powerful classes that interface to the underlying database system automatically generating the required SELECT, UPDATE, INSERT and DELETE commands. It also supports CREATE/ALTER TABLE, CREATE/ALTER INDEX, table joins, arithmetic expressions, aggregates, grouping, ordering, unions, support for all common data types and more. There are two versions of the library one for VB6 and .NET. Both versions support access to Microsoft Access, SQL Server, MySQL and Pervasive database systems.

The DatabaseObjects library is an open source tool for mapping relation database systems (MySQL, SQL Server, Microsoft Access) to an object-oriented structure. The library can simplify the development and maintenance of small and large systems by providing a mechanism to consolidate business logic, maintain data integrity, increasing productivity and minimise errors.

Database Objects - ORM in VB6

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dORM - Automate SQL. Focus on business logic

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OrmLite - A lightweight ORM for Java

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Database Objects - ORM in VB6

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dORM - Automate SQL. Focus on business logic

Coolstorage - ORM library for .NET

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OrmLite - A lightweight ORM for Java

Apache OpenJPA - Java Persistence API Implementation

pdoMap - ORM for PHP

Database Objects - ORM in VB6

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