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Data Warehousing

Data Warehousing
Joining is the process of partitioning data according to predefined criteria.

True
False

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Data Warehousing
A multifield transformation does which of the following?

Converts data from multiple fields into one field
Converts data from one field into multiple fields
Converts data from multiple fields into multiple fields
All of these

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Data Warehousing
A snowflake schema is which of the following types of tables?

Helper
All of these
Dimension
Fact

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Data Warehousing
Every key used to join the fact table with a dimensional table should be a surrogate key.

True
False

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Data Warehousing
A star schema has what type of relationship between a dimension and fact table?

One-to-one
All of these
One-to-many
Many-to-many

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Data Warehousing
Both status data and event data can be stored in a database.

True
False

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