what is difference between star schema and extend star
schema?
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Answer Posted / pranith kumar chakilam
star schema
1.It can be analysed only in 16 dimensions.
2.Master data is not reusable.
3.performance is degraded because of the alphanumeric
values in the fact table.
Extended Star Schema
1.It can be analysed in 16*248 dimensions.
2.Master data can be reusable as it is not inside the cube.
3.Better performance as there r no alphanumeric values in
the fact table.
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