The percentage cube.

•It is necessary to adapt SQL query processing to evaluate percentage cubes efficiently.•A percentage cube is significantly more difficult to compute than a standard cube due to a higher exponential complexity.•Percentage cubes should be computed at low cube dimensionality with dimensions having low cardinality.•Selecting top-k percentages across all cuboids is the most difficult analysis, harder than selecting minimum percentages.•Incremental materialized view algorithms are feasible for one percentage query, but not for the percentage cube.