Aggregate Storage Guidelines

When selecting an aggregate storage option, consider the following guidelines.

Note:

For information on aggregate storage and its use, see “Creating, Calculating, and Managing Aggregate Storage Databases” in the Oracle Essbase Database Administrator's Guide.

Aggregate Storage Guidelines for Hierarchy Types

  • Formulas can be specified only on members in a dynamic hierarchy or in a comparison dimension.

  • If a dimension contains alternate hierarchies and the Label Only option is used in any hierarchy, the same member level in all hierarchies in the dimension must be set to Label Only.

  • In a dynamic hierarchy, only stored members can have attribute associations.

  • All members of stored hierarchies must be tagged with the + [addition] consolidation method. The only exception to this is a member tagged as Label Only member and any direct child of a Label Only member.

  • A shared member may be used only once in a stored hierarchy.

  • The top member in a dimension with multiple hierarchies must be tagged as Label.

  • A compression dimension must contain a single dynamic hierarchy.

  • A single dynamic hierarchy must have at least one level 0 member without a formula.

Aggregate Storage Guidelines for Storage Types

  • The product of the number of stored dimension levels in an aggregate storage outline must be less than 2^32.

  • Currency settings cannot be specified.

Aggregate Storage Guidelines for Dimension Types

  • Attribute dimensions cannot be associated with an accounts dimension

  • In the accounts dimension, the Label Only property for members can used for all member levels with the exception of member level 0 member.

  • In all dimensions other than the accounts dimension, all the levels above a member tagged as Label Only must also be tagged as Label Only. All children of a member tagged as Label Only must be tagged with the + [addition] consolidation method. The only exception to this is the direct child of the member.

    Note:

    A level 0 member cannot be tagged as Label Only.

  • In the accounts dimension, all consolidation methods are allowed.

  • In all dimensions other than the accounts dimension, only the + [addition] consolidation method can be used. All children of a member tagged as Label Only must be tagged with the + [addition] consolidation method. The only exception to this is the direct child of the member.

  • Formulas can be specified only on members in a dynamic hierarchy or in a comparison dimension.

  • Dynamic Time Series settings may be used only with a time dimension.

  • A compression dimension must contain a single dynamic hierarchy.

  • A compression dimension must have at least one level 0 member without a formula.