Orientdb 1.0RC5 Publishing non-relational database management system

Orientdb is an open source, relational database management system that can be stored with the speed and capacity of 150,000 files per second under general hardware. It is written in Java and belongs to a document database that supports acid tx,http://www.aliyun.com/zixun/aggregation/16666.html ">indexes,asynch queries,sql layer , clustering, and so on, to support ACID transaction processing. Implemented using Java hardware-based.

ORIENTDB is a scalable document-graphics database management system with the flexibility of the text-block database and the ability of graphic database management link. Optional modeless, full mode, or mixed mode. Supports many advanced features such as acid transactions, fast indexing, native and SQL query capabilities. You can import and export documents in JSON format. If you don't perform expensive join operations, a relational database can retrieve hundreds of linked document graphs in milliseconds.

ORIENTDB 1.0RC5 version Update log:

1.The new SQL [] operator is added to extract items from lists, sets, maps, and arrays.
2.ORDER by works with projection alias.
3.Cross trees and graphs in projections.
4.The in operator uses Index when available.
5.All known bugs on transaction recovery were fixed.
6.The memory management of Mvrb-tree is rewritten to is faster and to is much pager RAM.
7.The Common and core modules are compatible with Java 5.

Download Address:

http://code.google.com/p/orient/downloads/detail?name=orientdb-graphed-1.0rc5.zip&can=2&q=

http://code.google.com/p/orient/downloads/detail?name=orientdb-1.0rc5.zip&can=2&q=