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Advocate III
Advocate III

Modelling advice - unable to fit into star schema

Hi All


I have a data set that doesnt seem to fit easily into a star schema and would appreciate any best practice advice please. Reporting needs to be done at all levels - i.e. Employees with certain skills, clients with projects, employees on projects etc 


  1.  Employee – can have multiple skills and multiple employment dates
  2. Client – can have multiple projects (or none)
  3. An employee can be on multiple projects (or none) and a project can have multiple employees (or none yet)
  4. Employees capture timesheets whether on project or not
  5. Project schedules have multiple tasks (and a number of other tables such as time in stages etc)
  6. Date table etc have been excluded for simplicity

Screenshot 2023-03-24 090913.png

Super User
Super User

Don't fret if you have multiple fact tables. That happens a lot in real life. As long as you don't try to connect them directly you will be fine.


Your data model must follow your business problem scenario. If it does then it is good, even if it is not a perfect star/snowflake.

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