What is LTS in obiee?
Advertisements. When you drag and drop a column from a physical table that is not currently being used in your logical table in BMM layer, the physical table containing such column gets added as a new Logical Table Source (LTS).
How do I create a level based hierarchy in Obiee 12c?
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
- Level-based calculated measures.
- Aggregate navigation.
- Drill down to child level in dashboards.
What is fragmentation content?
Across all segments of the media industry, we are seeing content fragmentation, from broadcasting (streaming services are making content available across multiple platforms and devices) to publishing (where book publishers are trying to bypass retailers to sell directly to customers).
What is bridge table in Obiee?
You can limit the number of records in the bridge table by predefining groups and forcing each fact record to fit in one of these predefined groups. To perform this design, you create a bridge table (assignment in 11g) and use the join property of the Logical Table Source.
What is fragmentation in Obiee?
We use fragmentation when we have fact or dimensional data in one or more different tables or data is splitted in different data sources. Then each logical table source represents one data segment. For example, clients, in the first table are clients from A to M, in the second from M to Z.
What is level-based hierarchy?
Dimension Hierarchies in OBIEE:Level-Based Hierarchy and Parent-Child Hierarchy. A hierarchy is a cascaded series of many-to-one relationships and consists of different levels. Example, a region hierarchy is defined with the levels Region, State, and City. Dimensions with parent-child hierarchies (value hierarchies).
What is BMM layer in Obiee?
Logical columns in BMM layer are automatically created when you drag tables from the physical layer to the business model layer. If the logical column is a primary key, this column is displayed with the key icon. You can also reorder logical columns in the Business Model and Mapping layer.
What is fragmentation content in Obiee 11g?
What is priority group in Obiee 11g?
You can set priority group numbers to determine which logical table source should be used for queries for which there is more than one logical table source that can satisfy the requested set of columns. For example, you might have user queries that can be fulfilled by both a data warehouse and an OLTP source.
Why do we need a surrogate key in fact table?
Fact table surrogate keys, which are not associated with any dimension, are assigned sequentially during the ETL load process and are used 1) as the single column primary key of the fact table; 2) to serve as an immediate identiļ¬er of a fact table row without navigating multiple dimensions for ETL purposes; 3) to allow …
What are bridging tables?
A logical data model may contain one or more many-to-many relationships. Physical data modelling techniques transform a many-to-many many-relationships into one-to many-relationships by adding additional tables. These are referred to as bridge tables.