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The characteristics required to start and grow a business are very different from those required to lead an established one. Start-up require unique mindsets and drive.

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What two attributes must be contained in the composite entity between store and product?

Primary key of both parent attributes


What is key attributes and domain attribute?

Key attributes are specific attributes in a database that uniquely identify a record within a table, often represented as primary keys. Domain attributes, on the other hand, refer to the defined set of values that a particular attribute can take, such as the range of valid entries for a field like age or the possible values for a status field. Together, they ensure data integrity and help enforce constraints within a database.


How can one determine keys from functional dependencies?

To determine keys from functional dependencies, one can use the closure of attributes to identify superkeys and then eliminate any redundant attributes to find the minimal key. This process involves applying the Armstrong's axioms and the closure property to determine the set of attributes that uniquely identify each tuple in a relation.


Is the process of creating table designs by assigning specific fields or attributes to each table in a database?

Normalization is the process of creating table designs by assigning specific fields or attributes to each table in a database.


What are data- attributes good for?

Data attributes are essential for enhancing the understanding and usability of data by providing context and meaning. They help in categorizing, filtering, and analyzing data effectively, enabling better decision-making. Additionally, data attributes facilitate data integration and interoperability across different systems, ensuring consistency and accuracy in data interpretation. Overall, they play a crucial role in data management and analytics.