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Problem : (b) A deductive database system is essentially the outcome of applying mathematics logic to database management, where logic is used for both data representation and
explain at least five widly used case tools
A set of possible data values is called? A set of possible data values is called as domain.
E-R Model This data model is based on real world that consists of basic objects named entities and of relationship among these objects. Entities are illustrated in a database
Process of implementing system design in dynamic models There are three essential approaches to implementing system design in dynamic models. These approaches are as below:
About Attribute inheritance
What is association? Give an example of association Association is used for establishing relationships among classes. Association describe links among/between classes. For exa
Define the Wait for graph Ans: The wait-for-graph is a directed graph and consist of nodes and directed arcs; the nodes of the graph are active transactions. An arc of the grap
Write short notes on relational model The relational model uses a collection of tables to show both data and the relationships between those data. The relational mo
Question: (a) List four disadvantages of the File Processing System as compared to the Database Systems. (b) The integrity of a database is enforced by integrity rules. One
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