Within the database environment, a data model represents data structures with the purpose of supporting a specific problem domain.
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Q11: In an SQL-based relational database, each table
Q12: A data model is usually graphical.
Q13: The relational model is hardware-dependent and software-independent.
Q14: Database designers determine the data and information
Q15: Business rules must be rendered in writing.
Q17: The network model has structural level dependence.
Q18: Business rules apply to businesses and government
Q19: In an SQL-based relational database, rows in
Q20: An implementation-ready data model should contain a
Q21: A(n) _'s main function is to help
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