A Fact Table is one that holds the primary keys of the referenced dimension tables along with some quantitative metrics (i.e. measurements) over which some sort of calculation can be performed. Some common examples of facts tables include orders, logs and time-series financial data.. On the other hand, Dimension Tables hold the descriptive information for all related fields that are included.. The attribute format of fact table is in numerical format and text format. While the attribute format of dimension table is in text format. 6. It comes after dimension table. While it comes before fact table. 7. The number of fact table is less than dimension table in a schema. While the number of dimension is more than fact table in a schema. 8.

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Definition of Fact Table. A Fact table is a table that contains measurements along the attributes of dimension tables. It can contain the information at lowest possible level. Some fact table just contains summary data, called as Aggregated Fact Table.The fact table almost contains the date stamped data. Let us discuss the characteristics of a fact table.. The relationship between Fact Tables and Dimension Tables is often specified by a set of keys that link the two tables together. The primary key in the Fact Table is a composite key that incorporates the keys from the relevant Dimension Tables, whereas the foreign key in the Dimension Table links back to the equivalent main key in the Fact Table.