Which columns should I include in dimension tables


i in process of designing fact , dimension tables use ssas cube.

i little unclear columns should share same dimension table. example have columns source tables such provider , provider description. assume these share same dimension?

i have columns in sources tables not have any relevance other columns. should these types of columns placed in own dimension table?  

 

 

i have number of yes/no columns. should make dimension has reads?

 

id answer
1   yes

2   no


is body able advice me?

 

mr shaw

shaw,

in general source tables contains more columns required in dimesnion table. can expect might have happend source table designed meet requirement of source application.

having said answer question, need design dimension including required fields (attributes) reporting. advisable keep minimum fields in dimension table.

regarding second question including yes/no columns include in dimension or not. if have requirement of differentiating data flat, answer yes other wise not recommended.

does answer question?

thanks,
ashok


SQL Server  >  SQL Server Analysis Services



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