Monday, 16 November 2020

Excel Data Modeling Hacks

 

Data Model provides tools for building relational databases directly in Excel
Excel Data Model
Data Model Window
Data View Vs. Diagram View
Database Normalization
Data Tables vs. lookup tables
Primay and Foreign Keys
Relationship vs. Merged Tables
How to create table relationship in Diagram view by click and drag
Always drag relationship from data table to lookup table
How to create table relationship using design tab
Connecting Lookups to lookups
How to modify table relationships
Active vs. Inactive Relationships
How to make a relation as active
Cardinality refers to uniqueness of values in a column
In Power piovt all relationships in data model should follow a "one-to-many" cardinality
Cardinality
One to one cardinality ( Bad)
Connecting multiple data tables
Always hide the foreign key columns in your data tables to prevent users from accidentally filtering on them
How to hide fields
Hierarchies are groups of nested columns that reflect multiple levels of granularity
How to create hierarchies
Data model best practices

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