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Hi All,
i have 3 tables with same columns so i want to create a data model as star schema how can i do this? i dont want single table data model ..... i want star schema model.
TableA
A
B
C
D
E
TableB
A
B
C
D
E
TableC
A
B
C
D
E
Thanks
Sony
From the Above, Separate dimension tables created like below:
TableA, TableB, TableC are the separate Dimension tables, connected by Key(A).
Like in the below image, Sales, Docs, VisitActivity are three Dim tables connected by DocID dimension.
what is the best approach? Tresesco B
Just with the given information the single table would be the best. Why should it be a star-scheme?
- Marcus
Hi,
Why does it need to be a star schema?
You can concatenate into one table. If you really need a star schema, create the keys you want to use and the rename the rest of the fields to be different from the other tables
If you have 3 tables with same columns then why do you want star schema
my advise is to use single column..
the use requirement is he want to see as star schema not in single table.
like in Qvd generator only we need to create seperate fact and dimension tables.
Fine
then tell me which column are key's in that 3 tables
in the above example
A is ID column which is key in all three tables
rest are dim and measure columns
TableA:
Load A as key,B,C,D,E from TableA;
TableB:
Load A as key
B AS B.B
C AS B.C
D AS B.D
E AS B.E FROM TableB;
TableC:
LOAD
A AS KEY
B AS C.B
C AS C.C
D AS C.D
E AS C.E FROM TableC;
My approach is
create star schema
if u don't want single table in this case rename field name treat as separate table.