What is the purpose of database?
A) Databases control data redundancy and provide data independencies.
Where is the structure of a database recorded?
the structure of the database (metadata) is recorded within the database system - not in the application program.
What is T/F database design?
T/F Logical database design means translating the conceptual design (e.g an ER Diagram) into the physical storage (file structures) for a selected DBMS.
How to construct a binary relationship between A and B?
Three possible representations of a binary relationship between A and B: 1) Add the key attributes of A as a non-key attribute of B. 2) Add the key attributes of B as non-key attributes of A. 3) Construct a relation called "VP" (verb phrase) whose key is the concantenation of the key of A and the key of B.
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