NexusDB Database Engine ADO.Net data provider beta
From: Eivind Bakkestuen (Ieivind.bakkestuenHATE_at_nexusdb.comSPAM)
Date: 11/18/03
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Date: Tue, 18 Nov 2003 21:40:09 +1000
Nexus Database Systems is pleased to announce the availability of our
ADO.Net data provider beta. Using the provider with our freely distributable
server, royalty-free, high-speed C/S systems can be created, at a fraction
of the cost of other royalty-based database engines.
The beta is available from the following group:
news://news.nexusdb.com/nexusdb.beta.binaries
Discussions about the beta are conducted in:
news://news.nexusdb.com/nexusdb.beta.dotNetProvider
or in the #NexusDBBeta channel of our IRC server.
The Beta is available for download from the nexusdb.beta.binaries newsgroup
now.
Welcome to the Beta of the NexusDB ADO.Net Driver.
================================================
I keep this short because I know how it is to read a file like this.
Legal Stuff
-----------
The beta version is provided as is and is for evaluation purposes only.
It in no way gives anyone a license/right to (re)distribute or use any
of the included files in a commercial or other environment except for
the sole purpose of evaluating its functionality.
What is implemented
-------------------
The assembly (NexusDBdotNetProvider.dll) provides the System.Data.NexusDB
namespace implementing
System.Data.NexusDB.NxAdapter
System.Data.NexusDB.NxCommand
System.Data.NexusDB.NxConnection
System.Data.NexusDB.NxDataReader
System.Data.NexusDB.NxParameter
System.Data.NexusDB.NxParameterCollection
System.Data.NexusDB.NxRowUpdatedEventArgs
System.Data.NexusDB.NxRowUpdatingEventArgs
System.Data.NexusDB.NxTransaction
System.Data.NexusDB.NxDataTypes
The classes/types are compatible with the according ones for SQL-Server
and thus their usage is the same.
How to use
----------
* Unzip all the files of the provider into a directory
* Unzip the testdata into a directory
* start a nxServer and add the data directory as an alias (e.g. test)
* start WindowsApplication1.exe from the driver directory
The source code of WindowsApplication1 is included in the Test subdirectory.
You need the .Net SDK installed (http://tinyurl.com/97x7).
You can either open it via Visual Studio or the SharpDevelop IDE
(http://www.icsharpcode.net/OpenSource/SD/).
If you want to use it in your own application you have to add a reference to
the assmbly.
Limitations in this version
---------------------------
* Time bomb: stops working after December 1st 2003
* Blob support is not yet internally tested
* Unicode is not yet internally tested
Please see our website for more information about NexusDB:
About the full version:
NexusDB is the most flexible full source database engine for Delphi and
C++Builder users. It scales seamlessly from databases kept solely in memory,
via embedded server (single executable deployment) to full C/S solutions
scaling to hundreds of users.
- A large subset of SQL Ansi 92 is supported, including DDL.
- It adheres to the VCL TDataSet interface, so you can continue using all
your favourite data-aware controls and report engines.
- Rivals pure memory-based database engines on speed on smaller datasets,
while scaling very well to larger datasets (millions of records)
- In multi-user environments, only the server can access the data,
minimizing risk of database corruption.
- Snapshot transactions provide 24/7 Live backup capability without
disrupting regular database activity.
- Support for the IProvider interface (TClientDataSet) is included.
- Its architecture is designed to be flexible, and can be enhanced by
writing plugins, monitors and extenders.
- It has lightning fast Winsock transports for networked C/S solutions; a
Blowfish wrapper transport provides added security when needed.
- Compression can be selectively turned on for the transports
- Conversion utilities for source and tables from other database engines
(BDE, ADO, etc) are provided.
- Includes a Memory manager unit which replaces Borland's with a 24/7 usable
one.
- Referential Integrity support available as conceptual monitor/extender
example
- ODBC and dbExpress drivers available as separate drivers pack
- Support for RemObjects/Data Abstract
- Support for kbmMW
- 3rdparty SSL strong encryption transports exists for extremely high
security needs
Additional binaries, trial versions based on the current release, manual and
help files are available from the web site.
-- Eivind Bakkestuen Nexus Database Systems
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