# Dimension

Base element for dimension elements within a cube.

### Description

The dimension is an abstract element that defines the basic properties of a OLAP dimension element. The derived elements, tabular and ODA dimension elements, provide hierarchy contents that are defined in this dimension itself.

### See Also

## defaultHierarchy

Name of the default hierarchy applied to this dimension.

### Description

The hierarchy element can define multiple hierarchy element. This property specified the default one to be made query and rendered. If you don't set the value or give the value of a non existing hierarchy, the first hierarchy element is read as the default one if existing.

### See Also

## isTimeType

Indicates whether the data type of the dimension is time.

### Description

This property indicates whether this dimension is a special type of Time. This is used to speed up the performance. True if the dimension is time type; otherwise false. By default, the value is FALSE.

### See Also