Java開源NoSQL數據庫, OrientDB 1.7.1 發布
OrientDB是一個NoSQL數據庫管理系統,在普通硬件上每秒可以存儲15萬份文檔。它是一個基于文檔的數據庫,關系在圖形數據庫中管理,與記錄之間直接連接。你可以在幾毫秒內遍歷樹和圖的記錄的全部或部分。它支持 schema-less, schema-full, 和schema-mixed 模式,具有一個基于用戶和角色,很強的安全性分析系統。支持SQL查詢語言。
OrientDB 1.7.1 發布了,這也是 1.7 RC2 版本。該版本主要包含如下改進:
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Core:
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supported retro-compatibility for databases created with OrientDB v1.5 or further (#1899)
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improved performance on ORDER BY against indexes (#1843)
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improved performance on RENAME CLASS (#1818)
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Graph:
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added support for vertex-centric traversal by using SQL (#2079)
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SQL:
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new UPSERT keyword to execute an INSERT or UPDATE based on a condition (#2032)
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UPDATE now can ADD also to sub-document fields (#2031)
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Indexes:
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added support for external engines (#1774)
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Studio:
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new Query Timeline to the History, new Index Panel, Fixed many bug