Answer / v.sivakumar

1.universe fetch the data once it is connected to the
database.

2.Microcube works like a cache, once you drag few objects
in results objects pane and run, complete report data will
go and store in microcube and then display in the report.

For Example: In the report if you apply filter/rank/formula
you will get data that satisfies your
formulae/filters/rank, where the rest of the data goes? it
will be not deleted from the report, microcube will store
that data.
when ever you remove filters,formulae from the report,
again you will get the complete data from microcube. this
is the functionality of microcube.

Answer / bo_craze

1. When you run a report the report query which has the universe objects hits the db/datasource. This is how a universe works and connects to the db/ds.
2. A micro cube is something like an OLAP cube. When you run a report all the results from your report query gets stored in the micro cube. Whereas the document shows the objects/data that you have added in the document after all filters etc. So the micro cube holds all the report query results even if it is not visible in the report document.

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