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1answer
20 views

Problem with Processing Dimensions with Multiple Facts

I have a cube built in SSAS that uses 3 facts and 8 dimensions. Some of the dimensions are shared across 3 facts. When I process one of the dimension, it tries to process the underlying measure ...
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0answers
47 views

Clustered index on a fact table

I'm trying to work out what field(s) to use for the clustered index of my fact tables (which all have a similar structure). I'll use FactSales as an example: CREATE TABLE dbo.FactSales ( ...
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814 views

An advice to design a fact table with a scd as a dimension

I have a problem of conception and I would like to get your ideas on how I'll be able to do what I am aiming. My goal is to create a datawarehouse, with three dimensions and one fact table so far. ...
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98 views

ETL flow in Fact tables

I've got a simple theoretical question... If we discuss the principles, elements, design and implementation of a typical ETL flow for a dimension table then, in my understanding, (in short) I'd say ...
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469 views

What is the difference between bridge table and helper table in data warehouse's context?

From what I could understand :- Bridge tables are used when a dimension table can not be directly associated with a fact table. e.g. In a bank's data warehouse a fact table of balance of a customer ...
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116 views

how many fact tables do I need given I want to build an OLAP for Quotation Line Item and Purchase Order Line Item report?

My client wants a report that looks something like this on a daily basis. +---------------+-------------------------+-----------------+---------------------+-------------+ | ProductNumber | ...
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140 views

Should I use conventional or computed columns for trivial metrics in a fact table?

A fact table can often have measures which are basically trivial. For example Orders.NumOrders will probably be "1" for every real record (synthetic records representing "no order" may populate this ...
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26 views

Query slow on 5 Mil fact table

I have a fact table with currently 5 mil rec. The record count will go up as ETL runs on daily basis. The below reporting dashboard query is taking 1.50 sec to execute. There are many number of ...
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23 views

How many degenerated dimensions should be stored in Fact table

How many degenerate dimension should actually be stored in a fact table? I am building a star schema and have to store some columns (10 of them to be precious) which are on a per transaction level. ...