Forum Discussion
how to model scd2?
Hi Anonymous ,
Are the [Client Skey] values in both tables unique? Why not create a dimension table similar to the one in the yellow box to join to both tables separately? That way, the [ClientEkey] field does not need to appear in both tables.
Good modeling is half of the success, please refer to:
Understand star schema and the importance for Power BI
Best Regards,
Gao
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How to get your questions answered quickly -- How to provide sample data
I need to model a scd2… Where, I would like to display in one page data based on current client, and in another based on the details of the client at the time it occurred.
I have modeled it this way...
First the data:
Fact
| Sale | Client Skey | ClientEkey |
| 345 | 1 | 1 |
| 341534 | 2 | 1 |
| 531 | 3 | 1 |
| 3145 | 4 | 1 |
| 3145 | 5 | 2 |
| 5789876543 | 6 | 2 |
| 342 | 7 | 2 |
| 44 | 8 | 2 |
Client
| Client | Client Skey | ClientEkey | Valid |
| the facebook | 1 | 1 | 0 |
| fbook | 2 | 1 | 0 |
| facebook inc | 3 | 1 | 0 |
| meta | 4 | 1 | 1 |
| A | 5 | 2 | 0 |
| Adidas | 6 | 2 | 0 |
| Adidas inc | 7 | 2 | 0 |
| Adidas int | 8 | 2 | 1 |
Both tables are connected through ClientSkey.
Then what I did in my model is just a dax code to consume/create:
Client Current (its just a subset of Client)
| Client Current | Client Skey | ClientEkey | Valid |
| meta | 4 | 1 | 1 |
| Adidas int | 8 | 2 | 1 |
and connect to Fact table throuh ClientEkey.
Is the model below correct then??
fact <---- Client (SKey)
fact <---- Client Current (Ekey)