发布时间：2015-02-15 08:34:03

  eXtremeDB, like other databases, provides indexes for access to objects based on key values. An index definition consists of any combination of scalar fields, structure elements or vector elements from a given class. Indexes can be of various types, the most common of whic.........【阅读全文】

发布时间：2015-02-08 16:13:21

  “Binary schema evolution” (BSE) is a feature that allows an application to alter the database schema of a stored database image to a new definition contained in the dictionary of the currently running application.     Supported schema changes include:&nbs.........【阅读全文】

发布时间：2015-02-01 17:18:09

eXtremeDB imposes very few limitations. However, it is important to be aware of the following: There is a limit of 64K (65,536) classes per database.Each class can have up to 64K fields, subject to a limit of 2^32 (4,294,967,296) bytes per object.An index can inc.........【阅读全文】