A Hitchhiker's Guide to the FILTER Function in Oracle Analytics
The FILTER function is a must-know feature for any Oracle Analytics developer to create advanced calculations in their own reports. Despite already being available when I entered the working world in 2010, it's plagued by a bug and the one line documentation is not exhaustive at all: as a result, people are struggling with it and get wrong values that cannot be used in their Machine Learning models and fancy visualizations.
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