Caboodle Administration - The
Dimensional Data Model
Define "Normalized facts version"
Normalized databases avoid redundancies in the facts to make ETL secure and easy
Define "Dimensional facts model"
1. The information is extra reachable
2. Efficiency
3. Fewer tables and easier joins
Define "Conformed measurement"
There are many truth DMC's in Caboodle. Rather than outline a complete set of dimensions
for every, it's clever to reuse them anywhere feasible. For instance, maximum reality DMC's
require a dimension describing patients, and all of them reference the equal desk
(PatientDim) to accomplish that. Dimensions that provide context to more than one facts on
this way are stated to be conformed dimensions.
Define "Profile dimension"
A "Profile Dimension" holds dimensional statistics this is specific to a single reality DMC.
Define " Surrogate key"
represents an entity in a moment in time.
Define "Durable key"
Every kind 2 DMC has a column named DurableKey. This column includes the equal price
for all of the rows that belong to a specific entity. For instance, in PatientDim, all the rows
corresponding to a specific affected person may have the equal long lasting key. (every row
could have a completely unique surrogate key)
Define "Type 1 data"
Historical values are NOT retained for kind 1 facts
Define "Type 2 facts"
Caboodle keeps ancient values for type 2 facts via developing multiple rows for each entity,
with each row containing the values for a selected time period.
Dimensional Data Model
Define "Normalized facts version"
Normalized databases avoid redundancies in the facts to make ETL secure and easy
Define "Dimensional facts model"
1. The information is extra reachable
2. Efficiency
3. Fewer tables and easier joins
Define "Conformed measurement"
There are many truth DMC's in Caboodle. Rather than outline a complete set of dimensions
for every, it's clever to reuse them anywhere feasible. For instance, maximum reality DMC's
require a dimension describing patients, and all of them reference the equal desk
(PatientDim) to accomplish that. Dimensions that provide context to more than one facts on
this way are stated to be conformed dimensions.
Define "Profile dimension"
A "Profile Dimension" holds dimensional statistics this is specific to a single reality DMC.
Define " Surrogate key"
represents an entity in a moment in time.
Define "Durable key"
Every kind 2 DMC has a column named DurableKey. This column includes the equal price
for all of the rows that belong to a specific entity. For instance, in PatientDim, all the rows
corresponding to a specific affected person may have the equal long lasting key. (every row
could have a completely unique surrogate key)
Define "Type 1 data"
Historical values are NOT retained for kind 1 facts
Define "Type 2 facts"
Caboodle keeps ancient values for type 2 facts via developing multiple rows for each entity,
with each row containing the values for a selected time period.
