What is level-based measures in Obiee 11g?

Level-based measures are created to perform calculation at a specific level of aggregation. They allow to return data at multiple levels of aggregation with one single query. It also allows to create share measures.

What is level-based hierarchy?

As the name implies Level-Based Hierarchies are used when your data has different levels of data. Some examples are Division > Region > State > City > Store and Product Category > Sub-Category > Product. In Level-Based Hierarchy, the upper levels will be properties of the dimension.

How do I create a hierarchy in Obiee?

The common sequence to create level-based hierarchies is to start with grand total level and then working down to lower levels….Dimensions with Level-based Hierarchies

1. Level-based calculated measures.
2. Aggregate navigation.
3. Drill down to child level in dashboards.

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.

What is aggregate table in Obiee 11g?

OBIEE – Aggregates Aggregations are used to implement query performance optimization while running the reports. This eliminates the time taken by query to run the calculations and delivers the results at fast speed. Aggregate tables has less number of rows as compared to a normal table.

How do I create a parent child hierarchy in Obiee?

Perform either of the following steps listed below:

1. Right-click the business model object and select New Object -> Logical Dimension -> Dimension with Parent-child hierarchy.
2. Right-click the logical dimension table and select Create Logical Dimension -> Dimension with Parent-Child hierarchy.

What are dimension hierarchies?

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 is ragged hierarchy in Obiee?

Ragged Hierarchy: A Ragged hierarchy is a hierarchy which has unbalanced child attributes. In the example below C1 doesn’t have a child(level D)attribute while C2 has child attributes(level D). It is unbalanced.

What is aggregate navigation in Obiee 11g?

Aggregate navigation is important of the presentation layer objects. The prebuilt aggregate tables can be used to improve performance of the server. The matching levels of aggregation should be done for fact and dimensions.

What are aggregate tables in Obiee?

How do you make an aggregate table?

You can create the aggregated table with T-SQL statements from SQL Server. Or you can create it in Power Query. You can create it in all other data transformation tools and query languages possible. Since we are doing everything with Power BI here, I’ll create the aggregated table with Power Query.

What is parent/child hierarchy in Obiee?

A parent-child hierarchy is a hierarchy of members that all have the same type. This contrasts with level-based hierarchies, where members of the same type occur only at a single level of the hierarchy.

What is the difference between dimensions and levels?

-A level is a collection of members which have the same distance from the root of the hierarchy. A dimension is a collection of hierarchies which discriminate on the same fact table attribute (say, the day that a sale occurred).

What are dimensions 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 is ragged and skipped level hierarchy?

OBIEE 11g supports Ragged and Skipped hierarchies. Let see what they actually are. Ragged Hierarchy: A Ragged hierarchy is a hierarchy which has unbalanced child attributes. In the example below C1 doesn’t have a child(level D)attribute while C2 has child attributes(level D).

What is implicit fact in Obiee?

To guide OBIEE in the best choice, you need to select a fact attribute (measure) as an implicit fact column. The implicit fact column is used for queries that only select dimension attributes (no facts) from two or more dimensions.

What is aggregate navigation?

Aggregate navigation is important of the presentation layer objects. Example for an aggregate. The prebuilt aggregate tables can be used to improve performance of the server. The matching levels of aggregation should be done for fact and dimensions.

What is aggregate table in Obiee?

What are aggregate tables?

An aggregate table contains detail fact data that is aggregated at a higher level relative to one or more of the dimensions associated with the data. Using aggregates is critical to achieving performance over large scales for the following reasons: It allows you to use pre-calculated data from a data warehouse.

What is the difference between metrics and dimensions?

Throughout most reports, metrics are the quantitative measurements of data and dimensions are the labels used to describe them—or, in even easier terms: metrics are always expressed by numbers (number values, %, $, time), while dimensions are expressed by non-numerical values.

What is level-based measures in obiee?

OBIEE – Level-Based Measures. Level-based measures are created to perform calculation at a specific level of aggregation. They allow to return data at multiple levels of aggregation with one single query. It also allows to create share measures.

How can I use the new obiee function in 11g aggregate at?

For example, you can divide salesperson revenue by regional revenue to calculate the share of the regional revenue each salesperson generates. The new OBIEE function in 11G AGGREGATE AT can leverage the same functionality

How do I create a level based measure?

To create a level based measure as the amount sold by region, you can: or set the aggregation grain in the level tab of the logical column property. With a lowest query grain, each query that requests these column will return the amount aggregated to its associated levels (in our case by region)

How do I apply level-based measures to the time hierarchies?

Similarly, you can apply level-based measures on the time hierarchies. Once the dimension hierarchies are created, level-based measures can be created by double clicking on the total revenue column in the logical table and setting the level in the levels tab. Open the repository in offline mode.