I would like to know why there is no relationships in the Employee Department
User Defined Hierarchy in the Employee dim.
I would think on Department should have many Title and one Tile has many
Employee. Is there any reason for not having the attributes relationship
defined?
Thanks again.
""Peter Yang[MSFT]"" wrote:
> Hello Ed,
>
> If you define an attribute relationship and you define a hierarchy
> including 2 attributes of the relatiionship, you could see the lowever
> level attribute can aggregate properly to upper level attribute.
>
> By default, an attribute relationship is automatically defined between the
> key attribute and each non-key attribute of the dimension. Also, an
> attribute relationship is automatically created between attributes have
> one-to-many relationship defined in dimension tables.
>
> However, for some natural hierarchies you have to define attribute
> relationship yourselves.
>
> Attribute relationships are an important part of dimension design. They
> help the server optimize storage of data, define referential integrity
> rules within the dimension, control the presence of member properties, and
> determine how MDX restrictions on one hierarchy affect the values in
> another hierarchy.
>
> You could refer to the following articles for more related information:
>
>
> Attribute Relationships
> http://msdn2.microsoft.com/en-us/library/ms174557.aspx
>
> OLAP Design Best Practices for Analysis Services 2005
> http://www.microsoft.com/technet/pro...olapdbpssas200
> 5.mspx
>
> If anything is unclear or you have furhter questions, please feel free to
> let's know.
>
> Best Regards,
>
> Peter Yang
> MCSE2000/2003, MCSA, MCDBA
> Microsoft Online Community Support
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