I'm debating how to model a teacher work force where most often a teacher works for one school authority. The issue is where a teacher works for multiple school authorities. A substitute teacher for example could work for a different school authority ever
Often when implementing slowly changing dimensions, a particular dimension will have only certain columns that are interesting to view changes over time (Type 2) while the remainder simply need to be updated (Type 1). Given this combination of Type 2 and
Can anyone explain in detail on what is the rationale behind having the dimension start with Type 0 and also for the missing type 5
We're using Oracle and I received the following (see below) from our architect about why we shouldn't create a new SK for every type 2 change. i.e. use a combination of date and sk as the primary key.
Is this correct. Will it affect the creation of
Hello,
As a student and champion of the Kimball method within my organization, I get questions from time to time that require some research:
My data modeling tool provides "dimensional" selections, including a tab where the user can designat
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Hello,
Within Ralph his new book he describes recommanded situations for snowflaking a dimension. His example is a large customer (visitor) dimension. (page 337, 338 and figure 10-6). I find the artical good, but there is missing one part of this
A> Since WiFi needs to be setup there are two things.
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