sql-server - 什么是回写?

标签 sql-server ssas olap xmla

当我在 SSMS 中处理多维数据集并将脚本写入 XMLA 时,我注意到以下元素:

<WriteBackTableCreation>UseExisting</WriteBackTableCreation>

什么是写回表创建功能,对于 SSAS UseExisting 意味着什么?

最佳答案

WritebackTableCreation Element (XMLA) :

Determines whether a writeback table is created during the Process operation...

UseExisting Use the existing writeback table, if one already exists. If one does not exist, an error occurs.

同时在 Specifying Processing Options :

Writeback Table Options If writeback is enabled in the Analysis Services project, this setting defines how writeback is handled....

更多详情,请参阅 Enabling and Securing Data Entry with Analysis Services Writeback :

Why would you want to write data back to Analysis Services rather than the relational database that provides the raw data? One reason is latency. When you write data back to a relational database, users have to wait until the cube is processed before the latest data becomes available in their reports. However, when you enable writeback, users can submit data straight into the cube in the current session, making it instantly visible to other users of the Analysis Services database

关于sql-server - 什么是回写?,我们在Stack Overflow上找到一个类似的问题: https://stackoverflow.com/questions/14445886/

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