Question: d . Define Schema, and describe Semiology term as applied to database ( 5 marks ) e . Formal Language define schema as data model.

d. Define Schema, and describe Semiology term as applied to database (5 marks)
e. Formal Language define schema as data model. State three major principles of data model
f. How does Data warehouse differ from both Data security and Data Integrity (2 marks)
d . Define Schema, and describe Semiology term as

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