我想在 OLAP 多维数据集上模拟假设分析 例如,我想知道在部门之间移动员工或产品从一家工厂搬到另一家工厂时制造成本的变动对部门资源预算的影响。
那么我应该使用 rolap cube'mondrian' 还是 molap ?
如果你能给我一些例子,我将不胜感激,tuto ... ;) 提前谢谢你
Actually mondrian does support "writeback" (via olap4j) so you can do what if analysis. Check out Saiku - AFAIK it's the first and only tool to have implemented it so far.
Here is how it works - it's pretty rudimentary:
http://julianhyde.blogspot.co.uk/2009/06/cell-writeback-in-mondrian.html
Martin is close to the point though, it doesn't actually update the raw data, only objects in the cache. But you wouldnt want to update raw data if you were doing what if analysis anyway!
我会说 Mondrian 是一个查询现有数据库的引擎,该数据库具有 Olap 的专用结构(通常是某种星型模式)。
绝对不是操纵(甚至)更改数据的东西。由于每个假设分析都需要以某种方式更改数据,蒙德里安不是它的工具。