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I have few questions for the experts:

Q1- Can we develop a OLAP cube in Tableau? [I know we can develop reports by connecting to relational database and also to OLAP cubes (e.g. Cognos or SSAS). But I am interested to know if we can really develop a cube in Tableau?]

Q2- Is there a difference between creating a dynamic dimension in tableau vs having a standalone dimension table? [somebody suggested me to create a de-normalized table and have tableau create the dimension on the fly. but what about records that are missing in the child/fact table. for instance, customer dimension has 10 records while only 8 were exist in the fact table. wouldn't i be missing other 2 if i connect to child/fact table directly?]

Q3- What about performance characteristics of Tableau? [I know tableau executes sql statements behind the scene when it displays data in the reporting tool. if i have millions of records in the de-normalized/child/fact table, will it perform fine?]

Thanks, Moiz

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Q1。不是。Tableau 是一个可视化分析前端，而不是构建多维 OLAP 存储的工具。虽然 Tableau 确实有自己的内存引擎，但它的工作方式与多维数据集的工作方式不同（按维度和层次结构预先聚合）。

Q2。对不起，这个问题对我来说毫无意义。

Q3。在您提到的场景中，Tableau 的性能取决于您的数据库快速响应的能力。如果您的数据库快速响应，Tableau 会很快。否则，Tableau 会很慢。这里没有魔法。在您的数据库运行缓慢的情况下，请尝试使用 Tableau 的内存引擎。

于 2013-12-21T14:10:28.523 回答