So I have two dimensions in my data warehouse: dim_machine ------------- machine_key machine_name machine_type dim_tool ------------ tool_key tool_name machine_type What I want to make sure of is the machine_type field in both dimensions has the same data. Should I create a third dimension to snowflake between the two or is there a...
I have two sets of data with the same level of grainularity, for example invoice number. Most of the data required is updated daily as we recognize the revenue for previous invoices. However, some of this data is fed through a seperate costing system once a month and is then fed to the data warehouse with additional information. Shoul...
I am looking for something similar to MySQL Proxy. The purpose is to modify incoming queries on the server. I am not looking for alternative ways to achieve the same. My best guess at the moment is to modify GridSQL, but this adds complexity and it takes time. I have asked this question before in a vastly different way and got no relevan...
I'm struggling to find an efficient and flexible representation for my data. We have a many-to-many relationship between two entities which have arbitrary lifetimes. Let's call these Voter and Candidate. Each relationship has a measurement which we'd like to summarize in various ways. These are timestamped and are guaranteed to be within...