How do I create a bridge table in Obiee?
How do I create a 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.
How do you make a bridging table?
Building a bridge table
- Step 1: Clean your data.
- Step 2: Create references of the tables you’re bridging.
- Step 3: Remove other columns.
- Step 4: Update all column headers to the same value.
- Step 4: Append all references to the bridge table.
- Step 5: De-duplicate your bridge.
What is bridge table?
In dimensional modelling, a bridge table is a table which connects a fact table to a dimension, in order to bring the grain of the fact table down to the grain of the dimension.
What is a bridge table ERD?
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.
What is a bridge table SQL?
A bridge table is a table that only contains the keys between the two tables in a many-to-many relationship. These tables typically consist of mostly key fields, the primary keys of the two tables needing the many to many relationships.
Does a bridge table need a primary key?
Bridge table is a table used to decompose a many to many relationship. The primary keys of each of the two many to many relations are used as the composite primary key of the bridge table. Foreign Key must share the same spelling, field size and data type as its primary key.
What size is a bridge table?
A bridge table typically has a 33-inch-square top and stands 27 inches high.
What is a bridge table why is a bridge table needed?
A bridge table is used to bridge the gap between a fact table and a dimension at a lower grain.
Why do you need a bridge table?
Bridge tables are dimensional tables needed to address the many to many relationships between facts and dimensions or dimensions and multi-valued attributes you may come across when modeling your star schema.
What is the size of a bridge table?
How do I create a bridge chart in Excel?
Go to the Charts group on the INSERT tab. Click on the Insert Column Chart icon and choose Stacked Column from the drop-down list. The graph appears in the worksheet, but it hardly looks like a waterfall chart. Take the next step and turn the stacked column graph into Excel bridge chart.
