About
The TopN function in OBIEE permit to perform a TopN analysis.
The TOPN function operates on the values returned in the result set.
When you add it as a formula column in an answer, the data are automatically filtered. You don't need to add a special topN filter.
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Syntax
TOPN (n_expression, n)
where:
- n_expression is any expression that evaluates to a numerical value.
- n. The N of TopN which is any positive integer. It Represents the top number of rankings displayed in the result set, 1 being the highest rank.
A query can contain only one TOPN expression.
Example
TopN for the whole rapport
TopN by section
TOPN("Sales Measures".Dollars, 5 by Markets.Region)
The N as parameter
Just create a dashboard prompt with the help of a presentation column with the number data type to set up a presentation variable and change:
- the formula column
TOPN("Sales Measures".Dollars,@{MyPresentationVariable}{5} by Markets.Region)
- or the filter
TOPN("Sales Measures".Dollars,@{MyPresentationVariable}{5} by Markets.Region) <= @{MyPresentationVariable}{5}