Does large dimensions have multiple hierarchies?

Does large dimensions have multiple hierarchies?

Many dimensions contain more than one natural hierarchy. For example, calendar date dimensions may have a day to week to fiscal period hierarchy, as well as a day to month to year hierarchy. In all of these cases, the separate hierarchies can gracefully coexist in the same dimension table.

What is multiple hierarchy?

Multiple hierarchies can be defined for dimensions containing level-based hierarchies. Because dimension members in separate hierarchies can be used to represent the same entity, each hierarchy should contain the same lowest level members.

What are dimension hierarchies give three examples?

Hierarchy. Some dimensions can have multiple levels forming a hierarchy. For example dates have year, month, day; geography has country, region, city; product might have category, subcategory and the product.

What are types of hierarchies in Obiee?

Types of Level-based Hierarchies

• Unbalanced Hierarchies. Unbalanced hierarchies are those where all the lower levels don’t have the same depth.
• Skip Level Hierarchies. In skip-level hierarchies, few members don’t have values at higher level.
• Dimension with Parent-child Hierarchies.

What is dimensional hierarchy?

Dimension hierarchies define structural and mathematical relationships, and consolidations between members in the database. Relationships are represented graphically in a collapsible hierarchy diagram. The levels below the database name are dimensions, and the levels below each dimension are members.

What are dimension hierarchies in data warehouse?

A dimensional hierarchy denotes how data is organized at various levels of aggregation. An analyst uses a dimensional hierarchy to identify various trends at one level, drill down to lower levels to detect causes for these trends, and roll up to higher levels to see the effects the trends have on the whole business.

What is alternate hierarchy in TM1?

In TM1 there really is no concept of an “alternate” hierarchy. A hierarchy is nothing more than a tree of parent/child relationships and you can have an unlimited number of those in TM1.

What are hierarchies in data warehousing?

A hierarchy is a many-to-one relationship between members of a table or between tables. A hierarchy basically consists of different levels, each corresponding to a dimension attribute. In other words, a hierarchy is a specification of levels that represents relationships between different attributes within a hierarchy.

What are dimensions hierarchies?

What is the dimension hierarchy?

How do I create a level-based hierarchy in Obiee?

Level-Based Measures in Oracle Business Intelligence (OBIEE)

1. We create another measure called ‘Brand Revenue’ which is a duplicate of ‘Revenue’ in the repository (RPD).
2. Click on its properties and in the ‘Levels’ tab specify the logical level as ‘Product Brand’ for Logical Dimension ‘H2 Product’. Save the RPD.

What is chronological key in Obiee 11g?

So the chronological key is the key which tells the obiee that the data is incrementing based on the chronological column. Here you may get another doubt. i.e. you are having columns like year, half_year, quarter, month, week and day.