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Define the concept of “database schema.” Describe the types of schemas that exist in a database complying with the three levels ANSI/SPARC architecture.

Define the concept of “database schema.” Describe the types of schemas
that exist in a database complying with the three levels ANSI/SPARC architecture.

Answers

BONFACE
Database schema is nothing but description of the database. The types of
schemas that exist in a database complying with three levels of ANSI/SPARC architecture are:
– External schema.
– Conceptual schema.
– Internal schema.
Mwalimu Bonface answered the question on February 28, 2018 at 09:52

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