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In a star schema, what do the fact tables contain?

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Question: In a star schema, what do the fact tables contain?

Options:

  1. Dimension attributes
  2. Aggregated data
  3. Transactional data
  4. Metadata

Correct Answer: Transactional data

Solution: 

Fact tables in a star schema contain transactional data that can be analyzed, often including measures and foreign keys to dimension tables.

In a star schema, what do the fact tables contain?

Practice Questions

Q1
In a star schema, what do the fact tables contain?
  1. Dimension attributes
  2. Aggregated data
  3. Transactional data
  4. Metadata

Questions & Step-by-Step Solutions

In a star schema, what do the fact tables contain?
Correct Answer: Fact tables contain transactional data.
  • Step 1: Understand what a star schema is. It is a type of database design used for data warehousing.
  • Step 2: Identify what a fact table is. A fact table is a central table in a star schema that stores quantitative data.
  • Step 3: Know that fact tables contain transactional data. This means they hold data about events or transactions that have occurred.
  • Step 4: Recognize that fact tables include measures. Measures are numerical values that can be analyzed, like sales amounts or quantities sold.
  • Step 5: Learn that fact tables also have foreign keys. These are links to dimension tables, which provide context to the measures, like time, product, or customer information.
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