Please explain in detail with example about
1.Confirmed Dimension.
2.Junk Dimension.
3.Degenerated Dimension.
4.Slowly changing Dimensions
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Answer / raveendra g
One dimension which used more than one cube called
Confirmed dimension.
Junk dimension is nothing but Durty. We have to take
unrelated attributes and data into maintain single table
called junk dimension.
DD: The value of the dimension which is stored in the
factable called Degenerated Dimension
SCD: The value of the dimension is happen to change very
rarely and commonly called SCD.
3 Types of SCDS we are having
SCD1: Only current
SCD2: Current+History, Here we can add rows
SCD3: Current+just recent, Here we can add columns level
data.
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Answer / usha
1.Confirmed Dimension:- the dimensions that are bult once
and can be use reused in multiple fact tables
2.Junk Dimension:- the dimension which is used to cerate
junk attributes
3.Degenerated Dimension:- The dimension that are located
in fact table
4.Slowly changing Dimensions:- The dimensions that chaanfes
slowly over a period of time.
Types
SCD type1
SCD type2
SCD type3
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Answer / vasu
check all pevious Questions and Answers in
Allinterview.com
| Is This Answer Correct ? | 1 Yes | 9 No |
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