The Levels page is used to set up levels to set up data aggregation in the cube that uses the dictionary as a dimension.

Aggregation calculates data of an upper level based on lower level data. For example, data calculated for months is summed to get quarterly data.

Suppose that a dictionary has the following elements hierarchy:

• Russian Federation:

• Northern area:

• Arkhangelsk region.

• Vologda region.

• North-West region:

• Saint Petersburg.

Create levels for these elements:

• Russian Federation.

• Federal districts.

• Regions.

NOTE. Each created level must correspond to the actual level of the dictionary elements hierarchy.

If this dictionary is used as a cube dimension, aggregation can be set up. For example, values for the states can be summed up to get values for the whole continent.