Which of the following statements is correct regarding a Star schema Fact table?1 pointA Fact table stores an accumulation of business entities.A Fact table stores an accumulation of business events.A Fact table must have a unique column

The correct statement regarding a Star schema Fact table is: "A Fact table stores an accumulation of business events."

Here's why:

A Star schema is a type of data organization method used in a data warehouse. It consists of one or more fact tables referencing any number of dimension tables.

1. A Fact table does not store an accumulation of business entities. Business entities are typically stored in Dimension tables. Dimension tables contain descriptive attributes, or fields, that are typically textual fields (or discrete numbers that behave like text). These tables provide the context describing the business entities.

2. A Fact table stores an accumulation of business events. This is correct. Fact tables contain the quantitative or factual data that a business process generates. For example, sales amount, quantity sold etc. These are measurable, quantitative data about a business.

3. A Fact table must have a unique column. This is not necessarily true. A Fact table can have a primary key which is usually a composite key made up of all its foreign keys. However, it's not mandatory for a Fact table to have a unique column. It depends on the business requirements and the granularity of the data.