ORIENTDB 1.0 Publish a non-relational database management system

Orientdb is an open source, non relational database management system. It is used under general hardware and can be stored at the speed and capacity of 150,000 files per second. 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. Supports 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.

Use Example:

Open the DATABASEODATABASEDOCUMENTTX db = new Odatabasedocumenttx ("Remote:localhost/petshop"). Open ("admin", "admin" //CREATE A NEW DOCUMENT and FILL itodocument doc = new odocument (db, "person");d Oc.field ("name", "Luke");d Oc.field (" Surname "," Skywalker ");d Oc.field (" City ", New odocument (db," City "). Field (" Name "," Rome "). Field (" Country "," Italy ")) //SAVE the Documentdoc.save ()//QUERY the documentlist <ODocument> result = Database.query (new Osqlsynchquery (" SELECT * from person where city.name = ' Rome ')). Execute ()//PRINT The result setfor (odocument d:result) { System.out.println ("Person:" + D.field ("name") + D.field ("surname")); Db.close ();

ORIENTDB 1.0 This version adds a new multiple master replication architecture, a new object database interface that uses runtime enhancements. The deferred load now processed is lighter and faster than before. A new Otraverse class uses the Stack method through the Java API. Data segments support multiple create/delete commands. New Odocument.undo () to restore local change. New server-side scripting support. Query for new environment variables. Console a new Check Database command. Studio improved graphics management. Improved OSGi support. Fixed more than 40 errors.

Software Information: http://www.orientechnologies.com/orient-document.htm

Download Address: Http://code.google.com/p/orient/downloads/list