Free relational database software for windows

A collection of C++ classes used to build embedded database engines based on variable block technology. Features: WIN32/UNIX database interoperability. Supports object-oriented and relational databasedesigns in traditional and client/server applications. Built-in support for multi-threaded database applications. Supports fixed and variable-length records. 99.9999% data integrity ensured by 32-bit CRCchecking. Offers best-fit and first-fit block allocation methods to prevent database fragmentation. Built-in exception handling. Allows locking at both the file and node level. Ships with an advanced database recovery utility plus other binary utilities.

Lattice.DataMapper is a useful .NET based object persistence library for relational databases. Lattice.DataMapper bridges the gap between objects and data source and allows the developer to work at the object level with little knowledge of the data source. In addition, Lattice.DataMapper shields your business logic from data source schema changes and data source provider changes which benefits maintainability.
The Lattice.DataMapper framework will help you to significantly reduce the amount of .net code that you normally need to access a relation database. Simplicity is the biggest advantage of Lattice.DataMapper over other frameworks and object relational mapping (O/R Mapper) tools. To use Lattice.DataMapper you need only be familiar with XML, stored procedures and SQL. Lattice.DataMapper provides the platform and flexibility to build your own architecture and you, the developer, have the full power of both stored procedures and SQL at your fingertips.
Lattice.DataMapper is a tool that maps .NET objects to and from an underlying relational database using external XML configuration and mapping files. The data access is externalized in XML and can include both SQL queries and stored procedure calls. An API is provided to then dynamically store and retrieve .NET objects using the mapping definitions.
Main features:
- Support .NET 2.0 and .NET 1.1 framework
- Support for different data providers and multiple data sources.
- Support object pre-fetch( one-to-one, one-to-many, many-to-many relationship )
- Queries are batched and run as one transaction
- Batch job can be run asynchronously at scheduled time as separate thread
- Cache can be set up per query ( supports cache database dependency )
- Support .NET 2.0 Generic and nullable value type
- Support nullable value types using null-value attribute
- Logging and error handling using Log4net framework
- Support distributed transactions without deriving from the ServiceComponent
- XML file based configuration file to define available data providers and data sources.
- XML based mapping files to define O/R mapping
- XSLT template based tool to auto-generate stored procedures, business entities and mapping files.

Visual C# 2005 Database Projects 1 is a professional and useful tool that contains three programs you can use at home. The programs illustrate advanced uses of Visual C# 2005 with databases.

The programs included with Visual C# 2005 Database Projects are: Weight Monitor, a program allowing you to monitor your daily weight and compute your body mass index (BMI); Student Identification, a program allowing entering information (including picture) on school students and printing identification cards; Pizza Orders, a order/customer tracking system.

Major Features:

1. ADO .NET data objects
2. Data bound controls,
3. Relational database design, graphics, and printing.
4. Has the actual Visual C# 2005 source code for Visual C# 2005 Database Projects that you can study and modify, as you desire.

Google Gears was designed to be an open source browser extension Google Gears was designed to be an open source browser extension that enables web applications to provide offline functionality using following JavaScript APIs:
- Store and serve application resources locally
- Store data locally in a fully-searchable relational database
- Run asynchronous Javascript to improve application responsiveness
Main features:
- LocalServer - Cache and serve application resources (HTML, JavaScript, images, etc.) locally
- Database - Store data locally in a fully-searchable relational database
- WorkerPool - Make your web applications more responsive by performing resource-intensive operations asynchronously
System requirements:
- Firefox 1.5+ and Internet Explorer 6.0+