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Define object-relational systems?
Systems that give object-oriented extensions to relational systems are known as object-relational systems.
Illustrate about the advanced object design Advanced object design is a complex task. The objects discovered through analysis serve as a skeleton of design. The operations reco
Describe about Object oriented design Object oriented design is concerned with developing an object oriented model of a software system to implement known requirements. Many OO
I need some help with my normalization database homework.
What is conceptual model ? A conceptual model is a independent of both hardware and software.
What subschema expresses ? A subschema expresses the external view. (External schemas are called also called as subschemas)
Explain the structure of well formed formulae in relational calculus. Ans: a. An atom is a formula b. If P1 is a formula, after that so are ¬P1 and (P1) c. If P1 and P2 a
Determine Which is not a consequence of concurrent operations? Ans: Update anomaly.
What is a function group? A function group is a collection of logically related modules that share global data with every other. All the modules in the group are contained in
What is a candidate key? Minimal super keys are known as candidate keys.
What are the purpose for having variable length records? What kinds of separator characters are required for each? Variable-Length Records - Variable-length records are thos
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