What keys are present in fact table?

What is present in fact table?

The fact table is a central table in the data schemas. It is found in the centre of a star schema or snowflake schema and surrounded by a dimension table. It contains the facts of a particular business process, such as sales revenue by month.

Which key Are you certain to find a fact table?

But in a fact table, the primary key is almost always defined as a subset of the foreign keys supplied by the dimensions. In most environments this composite key will suffice as the primary key to the fact table.

What is a fact key?

Key facts are those facts necessary to prove or disprove a claim. A key fact is so essential that if it were changed, the outcome of the case would be different.

What is natural key in fact table?

A natural key is a column or set of columns that already exist in the table (e.g. they are attributes of the entity within the data model) and uniquely identify a record in the table. Since these columns are attributes of the entity they obviously have business meaning.