Join condition of cube and other mapping missing mapping

Hi David,

I have a strange problem... After the creation of cube mapping tables defning and physical objects joins and the change of my mapping intermittently disappears... Not being able to trace what's happening. Is this a known bug or nothing is done correctly?

Enjoy your previous answer.

Thank you very much
Paiva

A "mapping" is a term of olap product management which means that the cube is not mapped to the level the fact sheet. For example, suppose you have tables like this

CREATE TABLE SALES_FACT
(
  DAY_OF_SALE DATE,
  PRODUCT_ID NUMBER,
  UNITS NUMBER,
  COST NUMBER
)

CREATE TABLE TIME
(
  DAY DATE,
  MONTH NUMBER,
  QUARTER NUMBER,
  YEAR NUMBER
)

Suppose you want to analyze the data only at the level of the MONTH and more. In this case, you must set a time of hierarchy which includes levels MONTHS->->-> ALL_TIME YEAR QUARTER and you would need to define a join condition between SALES_FACT and TIME of the form

SALES_FACT.DAY_OF_SALE = TIME.DAY

This is sometimes called a "mapping" because it maps data in the AW to a higher level than what is stored in the fact (for example, the MONTHS instead of DAYS).

Tags: Business Intelligence

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