Top Downloads News Highlights

eXtremeDB embedded DBMS proven compatible with AdaCore’s GNAT Pro Toolset for Ada programming language. Learn more.

McObject and partner Lucera Financial Infrastructures set records in first cloud-based STAC-M3 benchmark tests. Get the news.

New eXtremeDB embedded database version 6.0 boosts scalability, speed with distributed query processing. See the press release.

Singapore-based C3S joins McObject as distributor in Southeast Asia. Get details.

Printable Version

Perst Open Source Java Database / .NET Database Evaluation Software

Download an open source / evaluation copy of the Perst™ embedded database for Java or .NET. Complete documentation can be downloaded separately.

To purchase a commercial license for Perst for Java or .NET please contact us.
 

Perst and Perst Lite for Java
Perst open source / dual license embedded database for Java.
The Perst for Java distribution is compatible with Google's Android platform, and also includes Perst Lite for Java ME.
Build 4.36. Updated August 25, 2014. Change history:

1. Fix bug in Link.containsElement method
2. Fix bug in BitmapAllocator and BitmapCustomAllocator
3. Correctly deallocate object allocated in the same transaction
4. Implement separate bitmap aligned (paged) and non-aligned (non-paged) objects.

Perst for .NET (C#)
Perst open source / dual license embedded database for .NET (C#), .NET Compact Framework, Silverlight and Windows Phone 7 and 8, WinRT.
Build 4.46. Updated August 23, 2014. Change history:

1. Fix bug in Link.ContainsElement method
2. Fix bug in BitmapAllocator and BitmapCustomAllocator
3. Correctly deallocate object allocated in the same transaction
4. Implement separate bitmap aligned (paged) and non-aligned (non-paged) objects.

Perst Data Sheet

Perst ProScout demo
ProScout is a sample Java ME midlet, based on Perst Lite, that helps a sports recruiter manage information on a mobile device. ProScout has been tested in the PhoneME, Nokia S40 and S60, and Blackberry environments. Includes Getting Started file and commented source code.

Perst for Silverlight CRM demo
This demo shows Perst for .NET in a Silverlight-based customer relationship management (CRM) system. The demo runs in the user’s browser, stores records locally, and takes full advantage of Perst features. Includes source code and article w/ extensively comments.

PolePosition benchmark, Perst implementation - asynchronous version
PolePosition is a benchmark test suite to compare database engines and object-relational mapping technology. Includes PolePosition framework source to help to implement tests quickly, conduct timings and display results. Database transactions are committed asynchronously.

PolePosition benchmark, Perst implementation - synchronous version
This is the same PolePosition benchmark for Perst described above, but with database transactions commmitted synchronously.

TestIndex for Android
TestIndex is an Android-ready database benchmark application, with complete source code, that measures performance using Perst on Android, and Android’s bundled SQLite database system, performing the same tasks. Download TestIndex. (This download consists of the TestIndex benchmark application. Click here to obtain a report on TestIndex results in both in the Android emulator and in T-Mobile's G1 smartphone.)