What is diff between Junk dimensions and conform dimension?
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Answer / avinash
JUNK DIMENSION
A Dimension which cannot be used to describe the facts is
known as junk dimension(junk dimension provides additional
information to the main dimension)
ex:-customer add
Confirmed Dimension
A dimension table which can be shared by multiple fact tables
is known as Confirmed dimension
Ex:- Time dimension
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Answer / nagireddy
a junk dimension is dimension but not using for
maping..like its a boolean value.but conform dimesion is
which dimension is shared by two or more than two fact
tables is called conform dimension.and conform dimesin
reduce the no of tables...
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Junk dimension: This dimension is mainly used for reference
purpose. It contains textual codes and flag variables.
Ex: country_id,Country_name
IND INDIA
Conform dimension: AS Avinash said the dimension table which
is shared by multiple fact tables are called as Conform
Dimension table.
Date,Geography,time etc.
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Answer / shar
junk dimensions are dimensions that contain miscellaneous data like flags,gender,text values etc that cannot be used for generating reports
Conformed dimension: if a dimension table is shared by multiple fact tables then that table is called as conformed dimension table.
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