OrientDB是兼具文挡数据库的灵活性和图形数据库管理链接能力的可深层次扩展的文档-图形数据库管理系统。可选无模式、全模式或混合模式下。支持许多高级特性,诸如ACID事务、快速索引,原生和SQL查询功能。可以JSON格式导入、导出文档。若不执行昂贵的JOIN操作的话,如同关系数据库可在几毫秒内可检索数以百记的链接文档图。
OrientDB is an Open Source Nosql DBMS with the features of both Document and Graph DBMSs. Written in Java, it is incredibly fast: it can sTore up to 150,000 records per second on common hardware. Even for a Document based Database, the relationships are managed as in Graph Databases with direct conNECtions among records. You can traverse parts of or entire trees and graphs of records in a few milliseconds. Supports Schema-Less, schema-full and schema-mixed modes. Has a strong securIty profiling system based on user and roles and supports SQL amongst the query languages. Thanks to the SQL Layer, it’s straightforward to use for those skilled in the relational database world.
发布于 2017-09-23 00:26:45 | 86 次阅读