Guidelines for FACT Table Design for High-Transaction Volume and Hi...

Transaction Fact design

hi I am faced with a problem designing a transaction fact in an investment firm. each transaction represents a trade the traders put in (buy,sale etc). The problem I am facing is: the metrics of a transaction change from one day to another day so a

Customer addresses in a high volume retail environment

I have a requirement to start capturing addresses in our data warehouse for detailed analysis of customer returns. Up until now, analysis at postal code has been sufficient. The company I work is mail order, so the addresses I need to record

Fact table design: Sales Transaction with multiple Discount rows

Hi, I am designing a Sales DW where we can have multiple discounts on a given transaction line. I created a SalesTransaction (ST) fact table and a SalesDiscount (SD) fact table. In the current design the ST table has its own key that is a bigint

makeing a stand for star schema design

Hi, I am new to a financial company and I was asked to model two new sources of data in the existing mortgage data mart (not too sure if you could actually call it a datamart after seeing the design), basically I was asked to create detail information

character data in a fact table?

I just changed companies. i was accustomed to pure star schemas with fact tables containing only foreign keys to dimension tables and number measures that could be aggregated (sum, average, min, max). At my new job, I find dims with foreign keys

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Data Warehouse with high data availability

When a data warehouse is being updated by periodical ETL load, there could be significant performance impact on the end users' reports while the underlying tables are touched. The data becomes volatile and the query results could be different between

Transactional detail fact table w/complimentary snapshot table. How do the two play together?

Take a detail daily banking transaction table with standard credit and debit level transactions. I want to build the accompanying snapshot that would present the higher level rollups of these lower transactions: There are about 250 daily transaction

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Fact table with multiple date ?

Hi, I am modling a fact table for prisoners inscription in order to track historical changes. An admission is the hole stay comprise of one or many inscriptions usually separated by transferts between institutions. In the transactionnal system, it

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Guidelines for FACT Table Design for High-Transaction Volume and High # of Measures ...